diff --git a/.changeset/bold-webs-behave.md b/.changeset/bold-webs-behave.md
new file mode 100644
index 00000000000..baa1d961424
--- /dev/null
+++ b/.changeset/bold-webs-behave.md
@@ -0,0 +1,11 @@
+---
+'@graphql-tools/executor-urql-exchange': minor
+'@graphql-tools/executor-apollo-link': minor
+'@graphql-tools/git-loader': minor
+'@graphql-tools/executor': minor
+'@graphql-tools/optimize': minor
+'@graphql-tools/schema': minor
+'@graphql-tools/utils': minor
+---
+
+Add support for graphql-js v17
diff --git a/package-lock.json b/package-lock.json
index 83eaf2e67fb..25821b3cad2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -45,7 +45,7 @@
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+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.8.5.tgz",
+      "integrity": "sha512-Y7/KDsb8LjooZpwaqGyulO6DQlksgCncchHGk+sZIY4SBvUocMBEFH5Ur1fI4dV+Jvl0w6cjvucaIi40puRioA==",
       "dev": true,
       "license": "ISC",
       "bin": {
@@ -19914,9 +19839,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.20",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.20.tgz",
-      "integrity": "sha512-lW616l85ucIQL+FocMmL7pQFPqBmwejrCMg+iPxyImlrANNJG9NHq/RkyCZopDhd8C3LA03PHRJDjkbGu8vvug==",
+      "version": "8.5.14",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.14.tgz",
+      "integrity": "sha512-SoSL4+OSEtR99LHFZQiJLkT59C5B1amGO1NzTwj7TT1qCUgUO6hxOvzkOYxD+vMrXBM3XJIKzokoERdqQq/Zmg==",
       "funding": [
         {
           "type": "opencollective",
@@ -19933,7 +19858,7 @@
       ],
       "license": "MIT",
       "dependencies": {
-        "nanoid": "^3.3.16",
+        "nanoid": "^3.3.11",
         "picocolors": "^1.1.1",
         "source-map-js": "^1.2.1"
       },
@@ -20631,9 +20556,9 @@
       }
     },
     "node_modules/read-yaml-file/node_modules/js-yaml": {
-      "version": "3.14.2",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.2.tgz",
-      "integrity": "sha512-PMSmkqxr106Xa156c2M265Z+FTrPl+oxd/rgOQy2tijQeK5TxQ43psO1ZCwhVOSdnn+RzkzlRz/eY4BgJBYVpg==",
+      "version": "3.15.0",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.15.0.tgz",
+      "integrity": "sha512-ttBQIIQPDeLjpPOohtUdXuXUVoA2uIB6fEH9HyJ7234s5mBJ5wTx20njxplLZQgLaOfpmPQA7X2t5AX6tIPbog==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -21703,9 +21628,9 @@
       }
     },
     "node_modules/sharp/node_modules/semver": {
-      "version": "7.8.2",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-7.8.2.tgz",
-      "integrity": "sha512-c8jsqUZm3omBOI66G90z1Dyw5z622G8oLG+omfsHBJf3CWQTlOcwOjvOG6wtiNfW6anKm/eA39LMwMtMez2TiQ==",
+      "version": "7.8.5",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.8.5.tgz",
+      "integrity": "sha512-Y7/KDsb8LjooZpwaqGyulO6DQlksgCncchHGk+sZIY4SBvUocMBEFH5Ur1fI4dV+Jvl0w6cjvucaIi40puRioA==",
       "devOptional": true,
       "license": "ISC",
       "bin": {
@@ -22123,16 +22048,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/string-width-cjs/node_modules/is-fullwidth-code-point": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
-      "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=8"
-      }
-    },
     "node_modules/string-width/node_modules/ansi-regex": {
       "version": "6.2.2",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-6.2.2.tgz",
@@ -22371,9 +22286,9 @@
       "license": "MIT"
     },
     "node_modules/subscriptions-transport-ws/node_modules/ws": {
-      "version": "7.5.11",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.11.tgz",
-      "integrity": "sha512-zS54Oen9bITtp7kp2XM3AydrCIq1D+HwJOuH+c+e4LfpL/lotP5osijd+UoMnxwAam1GN8R4KtLAyIrIcBNpiA==",
+      "version": "7.5.13",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.13.tgz",
+      "integrity": "sha512-rsKI6xDBFVf4r/x8XyChGK04QR/XHroxs/jUcoWvtEZM8TPU/X/uIY9B1CsSzYws9ZJb/6bbBu7dPhFW00CAoA==",
       "devOptional": true,
       "license": "MIT",
       "engines": {
@@ -22700,9 +22615,9 @@
       "license": "MIT"
     },
     "node_modules/test-exclude/node_modules/brace-expansion": {
-      "version": "1.1.15",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.15.tgz",
-      "integrity": "sha512-EwOCDEex4quD37XhqM3omwtMoJjr//isUZz1JopUNWms+4Z2ViyM/k1YIRePpoVNnQhENnxtFjLaxNHrT7xIUg==",
+      "version": "1.1.16",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.16.tgz",
+      "integrity": "sha512-IDw48K2/2kRkg9LdJxurvq3lV3aBgq0REY89duEqFRthjlPdXHKMj7EnQOXVckxzgisinf3nHfrcE2FufFLXMw==",
       "license": "MIT",
       "dependencies": {
         "balanced-match": "^1.0.0",
@@ -22989,9 +22904,9 @@
       }
     },
     "node_modules/ts-jest/node_modules/semver": {
-      "version": "7.8.2",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-7.8.2.tgz",
-      "integrity": "sha512-c8jsqUZm3omBOI66G90z1Dyw5z622G8oLG+omfsHBJf3CWQTlOcwOjvOG6wtiNfW6anKm/eA39LMwMtMez2TiQ==",
+      "version": "7.8.5",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.8.5.tgz",
+      "integrity": "sha512-Y7/KDsb8LjooZpwaqGyulO6DQlksgCncchHGk+sZIY4SBvUocMBEFH5Ur1fI4dV+Jvl0w6cjvucaIi40puRioA==",
       "dev": true,
       "license": "ISC",
       "bin": {
@@ -23584,9 +23499,9 @@
       }
     },
     "node_modules/unist-util-visit": {
-      "version": "5.1.0",
-      "resolved": "https://registry.npmjs.org/unist-util-visit/-/unist-util-visit-5.1.0.tgz",
-      "integrity": "sha512-m+vIdyeCOpdr/QeQCu2EzxX/ohgS8KbnPDgFni4dQsfSCtpz8UqDyY5GjRru8PDKuYn7Fq19j1CQ+nJSsGKOzg==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/unist-util-visit/-/unist-util-visit-5.0.0.tgz",
+      "integrity": "sha512-MR04uvD+07cwl/yhVuVWAtw+3GOR/knlL55Nd/wAdblk27GCVt3lqpTivy/tkJcZoNPzTwS1Y+KMojlLDhoTzg==",
       "license": "MIT",
       "dependencies": {
         "@types/unist": "^3.0.0",
@@ -23977,9 +23892,9 @@
       }
     },
     "node_modules/webpack-bundle-analyzer/node_modules/ws": {
-      "version": "7.5.11",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.11.tgz",
-      "integrity": "sha512-zS54Oen9bITtp7kp2XM3AydrCIq1D+HwJOuH+c+e4LfpL/lotP5osijd+UoMnxwAam1GN8R4KtLAyIrIcBNpiA==",
+      "version": "7.5.13",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.13.tgz",
+      "integrity": "sha512-rsKI6xDBFVf4r/x8XyChGK04QR/XHroxs/jUcoWvtEZM8TPU/X/uIY9B1CsSzYws9ZJb/6bbBu7dPhFW00CAoA==",
       "license": "MIT",
       "engines": {
         "node": ">=8.3.0"
@@ -24297,16 +24212,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/wrap-ansi-cjs/node_modules/is-fullwidth-code-point": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
-      "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=8"
-      }
-    },
     "node_modules/wrap-ansi-cjs/node_modules/string-width": {
       "version": "4.2.3",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
@@ -24448,9 +24353,9 @@
       }
     },
     "node_modules/yargs": {
-      "version": "17.7.2",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.7.2.tgz",
-      "integrity": "sha512-7dSzzRQ++CKnNI/krKnYRV7JKKPUXMEh61soaHKg9mrWEhzFWhFnxPxGl+69cD1Ou63C13NUPCnmIcrvqCuM6w==",
+      "version": "17.7.3",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.7.3.tgz",
+      "integrity": "sha512-GZtjxm/J/4TSxuL3FNYjCmLktBTnIw/rVmKSIyKeYAZpmJB2ig9VauCC5xsa82GNKVKDAqpOn3KVzNt0zmrU0g==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -24483,16 +24388,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/yargs/node_modules/is-fullwidth-code-point": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
-      "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=8"
-      }
-    },
     "node_modules/yargs/node_modules/string-width": {
       "version": "4.2.3",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
@@ -24645,7 +24540,7 @@
       },
       "devDependencies": {
         "cross-inspect": "1.0.1",
-        "graphql": "^16.14.0"
+        "graphql": "^17.0.2"
       },
       "engines": {
         "node": ">=16.0.0"
@@ -24670,7 +24565,7 @@
       },
       "peerDependencies": {
         "@apollo/client": "^4.0.4",
-        "graphql": "^15.2.0 || ^16.0.0"
+        "graphql": "^15.2.0 || ^16.0.0 || ^17.0.0"
       }
     },
     "packages/executors/envelop": {
@@ -24749,7 +24644,7 @@
       },
       "peerDependencies": {
         "@urql/core": "^3.0.0 || ^4.0.0 || ^5.0.0 || ^6.0.0",
-        "graphql": "^15.2.0 || ^16.0.0",
+        "graphql": "^15.2.0 || ^16.0.0 || ^17.0.0",
         "wonka": "^6.0.0"
       }
     },
@@ -24955,22 +24850,6 @@
         "graphql": "^14.0.0 || ^15.0.0 || ^16.0.0 || ^17.0.0"
       }
     },
-    "packages/load/node_modules/graphql-tag": {
-      "version": "2.12.7",
-      "resolved": "https://registry.npmjs.org/graphql-tag/-/graphql-tag-2.12.7.tgz",
-      "integrity": "sha512-xnE/NFzy+0eIesvAsREJZ284zTl/wYuBAvpsFSDhRGRdRHdnE90M21Q3xAWyYInb0J756c6x0pIQ62+vtvOs1Q==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "tslib": "^2.1.0"
-      },
-      "engines": {
-        "node": ">=10"
-      },
-      "peerDependencies": {
-        "graphql": "^0.9.0 || ^0.10.0 || ^0.11.0 || ^0.12.0 || ^0.13.0 || ^14.0.0 || ^15.0.0 || ^16.0.0 || ^17.0.0"
-      }
-    },
     "packages/load/node_modules/p-limit": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-3.1.0.tgz",
diff --git a/package.json b/package.json
index 032e5dca6b3..d36edab06b4 100644
--- a/package.json
+++ b/package.json
@@ -81,7 +81,7 @@
     "eslint-plugin-n": "18.2.2",
     "eslint-plugin-promise": "7.3.0",
     "globby": "11.1.0",
-    "graphql": "16.14.0",
+    "graphql": "17.0.2",
     "graphql-yoga": "5.21.2",
     "husky": "9.1.7",
     "jest": "30.4.2",
@@ -102,13 +102,14 @@
     "wonka": "6.3.6"
   },
   "overrides": {
+    "@n1ru4l/in-memory-live-query-store": "0.11.0",
     "cookie": "2.0.1",
     "esbuild": "0.28.1",
     "estree-util-value-to-estree": "3.5.0",
     "extract-zip": {
       "yauzl": "3.3.0"
     },
-    "graphql": "16.14.0",
+    "graphql": "17.0.2",
     "miniflare": {
       "undici": "8.7.0"
     },
diff --git a/packages/executor/package.json b/packages/executor/package.json
index 815dc5a9b38..79f6bd61f72 100644
--- a/packages/executor/package.json
+++ b/packages/executor/package.json
@@ -64,7 +64,7 @@
   },
   "devDependencies": {
     "cross-inspect": "1.0.1",
-    "graphql": "^16.14.0"
+    "graphql": "^17.0.2"
   },
   "publishConfig": {
     "directory": "dist",
diff --git a/packages/executor/src/execution/__tests__/executor-test.ts b/packages/executor/src/execution/__tests__/executor-test.ts
index 7df74a0ed5b..987d10166d0 100644
--- a/packages/executor/src/execution/__tests__/executor-test.ts
+++ b/packages/executor/src/execution/__tests__/executor-test.ts
@@ -13,6 +13,7 @@ import {
   GraphQLUnionType,
   Kind,
   parse,
+  versionInfo,
 } from 'graphql';
 import { expectJSON } from '../../__testUtils__/expectJSON.js';
 import { resolveOnNextTick } from '../../__testUtils__/resolveOnNextTick.js';
@@ -207,6 +208,8 @@ describe('Execute: Handles basic execution tasks', () => {
       'operation',
       'variableValues',
       'signal',
+      'getAbortSignal',
+      'getAsyncHelpers',
     ]);
 
     const operation = document.definitions[0];
@@ -226,7 +229,7 @@ describe('Execute: Handles basic execution tasks', () => {
     expect(resolvedInfo).toMatchObject({
       fieldNodes: [field],
       path: { prev: undefined, key: 'result', typename: 'Test' },
-      variableValues: { var: 'abc' },
+      variableValues: versionInfo.major >= 17 ? { coerced: { var: 'abc' } } : { var: 'abc' },
     });
   });
 
diff --git a/packages/executor/src/execution/__tests__/oneOf-test.ts b/packages/executor/src/execution/__tests__/oneOf-test.ts
index 59709ad87ec..c3d504dfa76 100644
--- a/packages/executor/src/execution/__tests__/oneOf-test.ts
+++ b/packages/executor/src/execution/__tests__/oneOf-test.ts
@@ -72,17 +72,10 @@ if (versionInfo.major !== 16) {
         const result = executeQuery(query, rootValue);
 
         expectJSON(result).toDeepEqual({
-          data: {
-            test: null,
-          },
           errors: [
             {
-              locations: [{ column: 23, line: 3 }],
-              message:
-                // This type of error would be caught at validation-time
-                // hence the vague error message here.
-                'Argument "input" of non-null type "TestInputObject!" must not be null.',
-              path: ['test'],
+              locations: [{ column: 43, line: 2 }],
+              message: 'Variable "$input" has invalid default value.',
             },
           ],
         });
diff --git a/packages/executor/src/execution/__tests__/variables-test.ts b/packages/executor/src/execution/__tests__/variables-test.ts
index c4abdd4f3ec..504dc0c5c62 100644
--- a/packages/executor/src/execution/__tests__/variables-test.ts
+++ b/packages/executor/src/execution/__tests__/variables-test.ts
@@ -418,7 +418,9 @@ describe('Execute: Handles inputs', () => {
           errors: [
             {
               message:
-                'Variable "$input" got invalid value null at "input.c"; Expected non-nullable type "String!" not to be null.',
+                versionInfo.major >= 17
+                  ? 'Variable "$input" got invalid value null at "input.c"; Expected value of non-null type "String!" not to be null.'
+                  : 'Variable "$input" got invalid value null at "input.c"; Expected non-nullable type "String!" not to be null.',
               locations: [{ line: 2, column: 16 }],
             },
           ],
@@ -432,7 +434,9 @@ describe('Execute: Handles inputs', () => {
           errors: [
             {
               message:
-                'Variable "$input" got invalid value "foo bar"; Expected type "TestInputObject" to be an object.',
+                versionInfo.major >= 17
+                  ? 'Variable "$input" got invalid value "foo bar"; Expected value of type "TestInputObject" to be an object, found: "foo bar".'
+                  : 'Variable "$input" got invalid value "foo bar"; Expected type "TestInputObject" to be an object.',
               locations: [{ line: 2, column: 16 }],
             },
           ],
@@ -446,7 +450,9 @@ describe('Execute: Handles inputs', () => {
           errors: [
             {
               message:
-                'Variable "$input" got invalid value { a: "foo", b: "bar" }; Field "c" of required type "String!" was not provided.',
+                versionInfo.major >= 17
+                  ? 'Variable "$input" got invalid value { a: "foo", b: "bar" }; Expected value of type "TestInputObject" to include required field "c", found: { a: "foo", b: "bar" }.'
+                  : 'Variable "$input" got invalid value { a: "foo", b: "bar" }; Field "c" of required type "String!" was not provided.',
               locations: [{ line: 2, column: 16 }],
             },
           ],
@@ -465,12 +471,16 @@ describe('Execute: Handles inputs', () => {
           errors: [
             {
               message:
-                'Variable "$input" got invalid value { a: "foo" } at "input.na"; Field "c" of required type "String!" was not provided.',
+                versionInfo.major >= 17
+                  ? 'Variable "$input" got invalid value { a: "foo" } at "input.na"; Expected value of type "TestInputObject" to include required field "c", found: { a: "foo" }.'
+                  : 'Variable "$input" got invalid value { a: "foo" } at "input.na"; Field "c" of required type "String!" was not provided.',
               locations: [{ line: 2, column: 18 }],
             },
             {
               message:
-                'Variable "$input" got invalid value { na: { a: "foo" } }; Field "nb" of required type "String!" was not provided.',
+                versionInfo.major >= 17
+                  ? 'Variable "$input" got invalid value { na: { a: "foo" } }; Expected value of type "TestNestedInputObject" to include required field "nb", found: { na: { a: "foo" } }.'
+                  : 'Variable "$input" got invalid value { na: { a: "foo" } }; Field "nb" of required type "String!" was not provided.',
               locations: [{ line: 2, column: 18 }],
             },
           ],
@@ -487,7 +497,9 @@ describe('Execute: Handles inputs', () => {
           errors: [
             {
               message:
-                'Variable "$input" got invalid value { a: "foo", b: "bar", c: "baz", extra: "dog" }; Field "extra" is not defined by type "TestInputObject".',
+                versionInfo.major >= 17
+                  ? 'Variable "$input" got invalid value { a: "foo", b: "bar", c: "baz", extra: "dog" }; Expected value of type "TestInputObject" not to include unknown field "extra", found: { a: "foo", b: "bar", c: "baz", extra: "dog" }.'
+                  : 'Variable "$input" got invalid value { a: "foo", b: "bar", c: "baz", extra: "dog" }; Field "extra" is not defined by type "TestInputObject".',
               locations: [{ line: 2, column: 16 }],
             },
           ],
@@ -889,7 +901,9 @@ describe('Execute: Handles inputs', () => {
         errors: [
           {
             message:
-              'Variable "$input" got invalid value null at "input[1]"; Expected non-nullable type "String!" not to be null.',
+              versionInfo.major >= 17
+                ? 'Variable "$input" got invalid value null at "input[1]"; Expected value of non-null type "String!" not to be null.'
+                : 'Variable "$input" got invalid value null at "input[1]"; Expected non-nullable type "String!" not to be null.',
             locations: [{ line: 2, column: 16 }],
           },
         ],
@@ -937,7 +951,9 @@ describe('Execute: Handles inputs', () => {
         errors: [
           {
             message:
-              'Variable "$input" got invalid value null at "input[1]"; Expected non-nullable type "String!" not to be null.',
+              versionInfo.major >= 17
+                ? 'Variable "$input" got invalid value null at "input[1]"; Expected value of non-null type "String!" not to be null.'
+                : 'Variable "$input" got invalid value null at "input[1]"; Expected non-nullable type "String!" not to be null.',
             locations: [{ line: 2, column: 16 }],
           },
         ],
diff --git a/packages/executor/src/execution/execute.ts b/packages/executor/src/execution/execute.ts
index 2a10e0c1d28..91271e072e5 100644
--- a/packages/executor/src/execution/execute.ts
+++ b/packages/executor/src/execution/execute.ts
@@ -51,6 +51,7 @@ import {
   Path,
   pathToArray,
   promiseReduce,
+  toGraphQLJSVariableValues,
 } from '@graphql-tools/utils';
 import { TypedDocumentNode } from '@graphql-typed-document-node/core';
 import { DisposableSymbols } from '@whatwg-node/disposablestack';
@@ -816,7 +817,8 @@ export function buildResolveInfo(
 ): GraphQLResolveInfo {
   // The resolve function's optional fourth argument is a collection of
   // information about the current execution state.
-  return {
+  const { signal } = exeContext;
+  const info = {
     fieldName: fieldDef.name,
     fieldNodes,
     returnType: fieldDef.type,
@@ -826,9 +828,29 @@ export function buildResolveInfo(
     fragments: exeContext.fragments,
     rootValue: exeContext.rootValue,
     operation: exeContext.operation,
-    variableValues: exeContext.variableValues,
-    signal: exeContext.signal,
+    // graphql-js >= 17's `GraphQLResolveInfo.variableValues` is the structured
+    // `{ coerced, sources }` shape, not the flat map this package uses internally.
+    variableValues: toGraphQLJSVariableValues(exeContext.variableValues),
+    signal,
+    getAbortSignal: () => signal,
+    getAsyncHelpers: () => ({
+      promiseAll: <T>(values: ReadonlyArray<PromiseLike<T> | T>) => Promise.all(values),
+      // graphql-js >= 17's real `track()` registers background promises. This
+      // package doesn't implement graphql-js's optional `asyncWorkFinished` hook,
+      // so mirror just that safety property instead of building out the full hook feature.
+      track: (maybePromises: ReadonlyArray<unknown>) => {
+        for (const maybePromise of maybePromises) {
+          if (isPromise(maybePromise)) {
+            Promise.resolve(maybePromise).then(
+              () => {},
+              () => {},
+            );
+          }
+        }
+      },
+    }),
   };
+  return info;
 }
 
 export const CRITICAL_ERROR = 'CRITICAL_ERROR' as const;
@@ -989,7 +1011,7 @@ function getStreamValues(
   const stream = getDirectiveValues(
     GraphQLStreamDirective,
     fieldNodes[0],
-    exeContext.variableValues,
+    toGraphQLJSVariableValues(exeContext.variableValues),
   ) as {
     initialCount: number;
     label: string;
diff --git a/packages/executor/src/execution/values.ts b/packages/executor/src/execution/values.ts
index 7e085fdcc24..9d2f787a1e0 100644
--- a/packages/executor/src/execution/values.ts
+++ b/packages/executor/src/execution/values.ts
@@ -10,7 +10,34 @@ import {
   valueFromAST,
   VariableDefinitionNode,
 } from 'graphql';
-import { createGraphQLError, hasOwnProperty, inspect, printPathArray } from '@graphql-tools/utils';
+import {
+  createGraphQLError,
+  getOptionalGraphQLJSExport,
+  hasOwnProperty,
+  inspect,
+  printPathArray,
+} from '@graphql-tools/utils';
+
+// `validateInputValue` was introduced in graphql-js@17, replacing the `onError`
+// callback that `coerceInputValue` used to accept.
+const validateInputValue = getOptionalGraphQLJSExport('validateInputValue');
+
+// `coerceInputLiteral` was introduced in graphql-js@17. Unlike `valueFromAST`, it
+// correctly rejects AST literals whose kind doesn't match the target type (e.g. an
+// enum literal provided for a String variable default), which `valueFromAST`
+// stopped doing in graphql-js@17. See the same pattern in getArgumentValues.ts.
+const coerceInputLiteral = getOptionalGraphQLJSExport('coerceInputLiteral');
+
+function getAtPath(value: unknown, path: ReadonlyArray<string | number>): unknown {
+  let current = value;
+  for (const key of path) {
+    if (current == null || typeof current !== 'object' || !hasOwnProperty(current, String(key))) {
+      return undefined;
+    }
+    current = (current as Record<string | number, unknown>)[key];
+  }
+  return current;
+}
 
 type CoercedVariableValues =
   | { errors: ReadonlyArray<GraphQLError>; coerced?: never }
@@ -78,7 +105,22 @@ function coerceVariableValues(
 
     if (!hasOwnProperty(inputs, varName)) {
       if (varDefNode.defaultValue) {
-        coercedValues[varName] = valueFromAST(varDefNode.defaultValue, varType);
+        const coercedDefaultValue = coerceInputLiteral
+          ? coerceInputLiteral(varDefNode.defaultValue, varType)
+          : valueFromAST(varDefNode.defaultValue, varType);
+        if (coercedDefaultValue === undefined) {
+          // Schema/document validation should catch an invalid default value
+          // before execution; this mirrors graphql-js's own
+          // `coerceDefaultValue`/`maybeUseDefaultValue`, which report this
+          // case as an error rather than silently producing `undefined`.
+          onError(
+            createGraphQLError(`Variable "$${varName}" has invalid default value.`, {
+              nodes: varDefNode.defaultValue,
+            }),
+          );
+        } else {
+          coercedValues[varName] = coercedDefaultValue;
+        }
       } else if (isNonNullType(varType)) {
         const varTypeStr = inspect(varType);
         onError(
@@ -107,8 +149,8 @@ function coerceVariableValues(
       continue;
     }
 
-    coercedValues[varName] = coerceInputValue(value, varType, (path, invalidValue, error) => {
-      let prefix = `Variable "$${varName}" got invalid value ` + inspect(invalidValue);
+    const reportInvalidValue = (path: ReadonlyArray<string | number>, error: GraphQLError) => {
+      let prefix = `Variable "$${varName}" got invalid value ` + inspect(getAtPath(value, path));
       if (path.length > 0) {
         prefix += ` at "${varName}${printPathArray(path)}"`;
       }
@@ -118,7 +160,25 @@ function coerceVariableValues(
           originalError: error,
         }),
       );
-    });
+    };
+
+    if (validateInputValue) {
+      // graphql-js >= 17: `coerceInputValue` no longer reports diagnostics via a
+      // callback, so fall back to `validateInputValue` when coercion fails.
+      const coercedValue = coerceInputValue(value, varType);
+      if (coercedValue !== undefined) {
+        coercedValues[varName] = coercedValue;
+      } else {
+        validateInputValue(value, varType, (error, path) => reportInvalidValue(path, error));
+      }
+    } else {
+      coercedValues[varName] = (coerceInputValue as any)(
+        value,
+        varType,
+        (path: ReadonlyArray<string | number>, _invalidValue: unknown, error: GraphQLError) =>
+          reportInvalidValue(path, error),
+      );
+    }
   }
 
   return coercedValues;
diff --git a/packages/executors/apollo-link/package.json b/packages/executors/apollo-link/package.json
index 0bded6d05dd..c59c0628939 100644
--- a/packages/executors/apollo-link/package.json
+++ b/packages/executors/apollo-link/package.json
@@ -49,7 +49,7 @@
   "typings": "dist/typings/index.d.ts",
   "peerDependencies": {
     "@apollo/client": "^4.0.4",
-    "graphql": "^15.2.0 || ^16.0.0"
+    "graphql": "^15.2.0 || ^16.0.0 || ^17.0.0"
   },
   "dependencies": {
     "@graphql-tools/utils": "^11.2.2",
diff --git a/packages/executors/urql-exchange/package.json b/packages/executors/urql-exchange/package.json
index 60245405d45..42ce53cd0e8 100644
--- a/packages/executors/urql-exchange/package.json
+++ b/packages/executors/urql-exchange/package.json
@@ -44,7 +44,7 @@
   },
   "peerDependencies": {
     "@urql/core": "^3.0.0 || ^4.0.0 || ^5.0.0 || ^6.0.0",
-    "graphql": "^15.2.0 || ^16.0.0",
+    "graphql": "^15.2.0 || ^16.0.0 || ^17.0.0",
     "wonka": "^6.0.0"
   },
   "dependencies": {
diff --git a/packages/loaders/git/tests/loader.spec.ts b/packages/loaders/git/tests/loader.spec.ts
index 98cd8398f84..0e130ff999f 100644
--- a/packages/loaders/git/tests/loader.spec.ts
+++ b/packages/loaders/git/tests/loader.spec.ts
@@ -1,8 +1,11 @@
 import { execSync } from 'child_process';
 import * as path from 'path';
+import { versionInfo } from 'graphql';
 import { runTests } from '../../../testing/utils.js';
 import { GitLoader } from '../src/index.js';
 
+const emptyList = versionInfo.major >= 17 ? undefined : [];
+
 describe('GitLoader', () => {
   const loader = new GitLoader();
   const lastCommit = execSync('git rev-parse HEAD', { encoding: 'utf-8' }).replace(/\n/g, '');
@@ -55,12 +58,12 @@ describe('GitLoader', () => {
           definitions: [
             {
               description: undefined,
-              directives: [],
+              directives: emptyList,
               fields: [
                 {
-                  arguments: [],
+                  arguments: emptyList,
                   description: undefined,
-                  directives: [],
+                  directives: emptyList,
                   kind: 'FieldDefinition',
                   loc: {
                     end: 28,
@@ -91,7 +94,7 @@ describe('GitLoader', () => {
                   },
                 },
               ],
-              interfaces: [],
+              interfaces: emptyList,
               kind: 'ObjectTypeDefinition',
               loc: {
                 end: 30,
@@ -135,12 +138,12 @@ describe('GitLoader', () => {
           definitions: [
             {
               description: undefined,
-              directives: [],
+              directives: emptyList,
               fields: [
                 {
-                  arguments: [],
+                  arguments: emptyList,
                   description: undefined,
-                  directives: [],
+                  directives: emptyList,
                   kind: 'FieldDefinition',
                   loc: {
                     end: 28,
@@ -171,7 +174,7 @@ describe('GitLoader', () => {
                   },
                 },
               ],
-              interfaces: [],
+              interfaces: emptyList,
               kind: 'ObjectTypeDefinition',
               loc: {
                 end: 30,
diff --git a/packages/optimize/tests/remove-empty-nodes.spec.ts b/packages/optimize/tests/remove-empty-nodes.spec.ts
index 8c04f98e4b7..5d02a3d2fb2 100644
--- a/packages/optimize/tests/remove-empty-nodes.spec.ts
+++ b/packages/optimize/tests/remove-empty-nodes.spec.ts
@@ -1,4 +1,4 @@
-import { DocumentNode, parse, print, visit } from 'graphql';
+import { DocumentNode, parse, print, versionInfo, visit } from 'graphql';
 import { removeEmptyNodes } from '../src/index.js';
 
 describe('removeEmptyNodes', () => {
@@ -60,7 +60,9 @@ describe('removeEmptyNodes', () => {
     const out = removeEmptyNodes(doc);
     const stringOut = JSON.stringify(normalizeAcrossGraphQLVersions(out));
     expect(stringOut).toBe(
-      `{"kind":"Document","definitions":[{"kind":"SchemaDefinition","operationTypes":[{"kind":"OperationTypeDefinition","operation":"query","type":{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":31,"end":34}},"loc":{"start":31,"end":34}},"loc":{"start":24,"end":34}}],"loc":{"start":7,"end":42}},{"kind":"ScalarTypeDefinition","name":{"kind":"Name","value":"Foo","loc":{"start":56,"end":59}},"loc":{"start":49,"end":59}},{"kind":"ObjectTypeDefinition","name":{"kind":"Name","value":"Foo","loc":{"start":71,"end":74}},"interfaces":[],"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":85,"end":88}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":90,"end":93}},"loc":{"start":90,"end":93}},"loc":{"start":85,"end":93}}],"loc":{"start":66,"end":101}},{"kind":"InterfaceTypeDefinition","name":{"kind":"Name","value":"Foo","loc":{"start":118,"end":121}},"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":132,"end":135}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":137,"end":140}},"loc":{"start":137,"end":140}},"loc":{"start":132,"end":140}}],"loc":{"start":108,"end":148}},{"kind":"UnionTypeDefinition","name":{"kind":"Name","value":"FooBar","loc":{"start":161,"end":167}},"types":[{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":170,"end":173}},"loc":{"start":170,"end":173}},{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":176,"end":179}},"loc":{"start":176,"end":179}}],"loc":{"start":155,"end":179}},{"kind":"EnumTypeDefinition","name":{"kind":"Name","value":"FooBar","loc":{"start":191,"end":197}},"values":[{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"FOO","loc":{"start":208,"end":211}},"loc":{"start":208,"end":211}},{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"BAR","loc":{"start":220,"end":223}},"loc":{"start":220,"end":223}}],"loc":{"start":186,"end":231}},{"kind":"InputObjectTypeDefinition","name":{"kind":"Name","value":"Foo","loc":{"start":244,"end":247}},"fields":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"bar","loc":{"start":258,"end":261}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":263,"end":266}},"loc":{"start":263,"end":266}},"loc":{"start":258,"end":266}}],"loc":{"start":238,"end":274}},{"kind":"ObjectTypeDefinition","name":{"kind":"Name","value":"Bar","loc":{"start":286,"end":289}},"interfaces":[],"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":300,"end":303}},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"foo","loc":{"start":304,"end":307}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":309,"end":312}},"loc":{"start":309,"end":312}},"loc":{"start":304,"end":312}}],"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":315,"end":318}},"loc":{"start":315,"end":318}},"loc":{"start":300,"end":318}}],"loc":{"start":281,"end":326}}],"loc":{"start":0,"end":331}}`,
+      versionInfo.major >= 17
+        ? `{"kind":"Document","definitions":[{"kind":"SchemaDefinition","operationTypes":[{"kind":"OperationTypeDefinition","operation":"query","type":{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":31,"end":34}},"loc":{"start":31,"end":34}},"loc":{"start":24,"end":34}}],"loc":{"start":7,"end":42}},{"kind":"ScalarTypeDefinition","name":{"kind":"Name","value":"Foo","loc":{"start":56,"end":59}},"loc":{"start":49,"end":59}},{"kind":"ObjectTypeDefinition","name":{"kind":"Name","value":"Foo","loc":{"start":71,"end":74}},"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":85,"end":88}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":90,"end":93}},"loc":{"start":90,"end":93}},"loc":{"start":85,"end":93}}],"loc":{"start":66,"end":101}},{"kind":"InterfaceTypeDefinition","name":{"kind":"Name","value":"Foo","loc":{"start":118,"end":121}},"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":132,"end":135}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":137,"end":140}},"loc":{"start":137,"end":140}},"loc":{"start":132,"end":140}}],"loc":{"start":108,"end":148}},{"kind":"UnionTypeDefinition","name":{"kind":"Name","value":"FooBar","loc":{"start":161,"end":167}},"types":[{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":170,"end":173}},"loc":{"start":170,"end":173}},{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":176,"end":179}},"loc":{"start":176,"end":179}}],"loc":{"start":155,"end":179}},{"kind":"EnumTypeDefinition","name":{"kind":"Name","value":"FooBar","loc":{"start":191,"end":197}},"values":[{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"FOO","loc":{"start":208,"end":211}},"loc":{"start":208,"end":211}},{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"BAR","loc":{"start":220,"end":223}},"loc":{"start":220,"end":223}}],"loc":{"start":186,"end":231}},{"kind":"InputObjectTypeDefinition","name":{"kind":"Name","value":"Foo","loc":{"start":244,"end":247}},"fields":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"bar","loc":{"start":258,"end":261}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":263,"end":266}},"loc":{"start":263,"end":266}},"loc":{"start":258,"end":266}}],"loc":{"start":238,"end":274}},{"kind":"ObjectTypeDefinition","name":{"kind":"Name","value":"Bar","loc":{"start":286,"end":289}},"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":300,"end":303}},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"foo","loc":{"start":304,"end":307}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":309,"end":312}},"loc":{"start":309,"end":312}},"loc":{"start":304,"end":312}}],"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":315,"end":318}},"loc":{"start":315,"end":318}},"loc":{"start":300,"end":318}}],"loc":{"start":281,"end":326}}],"loc":{"start":0,"end":331}}`
+        : `{"kind":"Document","definitions":[{"kind":"SchemaDefinition","operationTypes":[{"kind":"OperationTypeDefinition","operation":"query","type":{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":31,"end":34}},"loc":{"start":31,"end":34}},"loc":{"start":24,"end":34}}],"loc":{"start":7,"end":42}},{"kind":"ScalarTypeDefinition","name":{"kind":"Name","value":"Foo","loc":{"start":56,"end":59}},"loc":{"start":49,"end":59}},{"kind":"ObjectTypeDefinition","name":{"kind":"Name","value":"Foo","loc":{"start":71,"end":74}},"interfaces":[],"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":85,"end":88}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":90,"end":93}},"loc":{"start":90,"end":93}},"loc":{"start":85,"end":93}}],"loc":{"start":66,"end":101}},{"kind":"InterfaceTypeDefinition","name":{"kind":"Name","value":"Foo","loc":{"start":118,"end":121}},"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":132,"end":135}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":137,"end":140}},"loc":{"start":137,"end":140}},"loc":{"start":132,"end":140}}],"loc":{"start":108,"end":148}},{"kind":"UnionTypeDefinition","name":{"kind":"Name","value":"FooBar","loc":{"start":161,"end":167}},"types":[{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":170,"end":173}},"loc":{"start":170,"end":173}},{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":176,"end":179}},"loc":{"start":176,"end":179}}],"loc":{"start":155,"end":179}},{"kind":"EnumTypeDefinition","name":{"kind":"Name","value":"FooBar","loc":{"start":191,"end":197}},"values":[{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"FOO","loc":{"start":208,"end":211}},"loc":{"start":208,"end":211}},{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"BAR","loc":{"start":220,"end":223}},"loc":{"start":220,"end":223}}],"loc":{"start":186,"end":231}},{"kind":"InputObjectTypeDefinition","name":{"kind":"Name","value":"Foo","loc":{"start":244,"end":247}},"fields":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"bar","loc":{"start":258,"end":261}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":263,"end":266}},"loc":{"start":263,"end":266}},"loc":{"start":258,"end":266}}],"loc":{"start":238,"end":274}},{"kind":"ObjectTypeDefinition","name":{"kind":"Name","value":"Bar","loc":{"start":286,"end":289}},"interfaces":[],"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":300,"end":303}},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"foo","loc":{"start":304,"end":307}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":309,"end":312}},"loc":{"start":309,"end":312}},"loc":{"start":304,"end":312}}],"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":315,"end":318}},"loc":{"start":315,"end":318}},"loc":{"start":300,"end":318}}],"loc":{"start":281,"end":326}}],"loc":{"start":0,"end":331}}`,
     );
     expect(stringOut).not.toContain(`"arguments":[]`);
     expect(stringOut).not.toContain(`"directives":[]`);
@@ -91,7 +93,9 @@ describe('removeEmptyNodes', () => {
     const out = removeEmptyNodes(doc);
     const stringOut = JSON.stringify(normalizeAcrossGraphQLVersions(out));
     expect(stringOut).toBe(
-      `{"kind":"Document","definitions":[{"kind":"SchemaExtension","operationTypes":[{"kind":"OperationTypeDefinition","operation":"query","type":{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":38,"end":41}},"loc":{"start":38,"end":41}},"loc":{"start":31,"end":41}}],"loc":{"start":7,"end":49}},{"kind":"ScalarTypeExtension","name":{"kind":"Name","value":"Foo","loc":{"start":70,"end":73}},"directives":[{"kind":"Directive","name":{"kind":"Name","value":"foo","loc":{"start":75,"end":78}},"loc":{"start":74,"end":78}}],"loc":{"start":56,"end":78}},{"kind":"ObjectTypeExtension","name":{"kind":"Name","value":"Foo","loc":{"start":97,"end":100}},"interfaces":[],"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":111,"end":114}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":116,"end":119}},"loc":{"start":116,"end":119}},"loc":{"start":111,"end":119}}],"loc":{"start":85,"end":127}},{"kind":"InterfaceTypeExtension","name":{"kind":"Name","value":"Foo","loc":{"start":151,"end":154}},"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":165,"end":168}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":170,"end":173}},"loc":{"start":170,"end":173}},"loc":{"start":165,"end":173}}],"loc":{"start":134,"end":181}},{"kind":"UnionTypeExtension","name":{"kind":"Name","value":"FooBar","loc":{"start":201,"end":207}},"types":[{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":210,"end":213}},"loc":{"start":210,"end":213}},{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":216,"end":219}},"loc":{"start":216,"end":219}}],"loc":{"start":188,"end":219}},{"kind":"EnumTypeExtension","name":{"kind":"Name","value":"FooBar","loc":{"start":238,"end":244}},"values":[{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"FOO","loc":{"start":255,"end":258}},"loc":{"start":255,"end":258}},{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"BAR","loc":{"start":267,"end":270}},"loc":{"start":267,"end":270}}],"loc":{"start":226,"end":278}},{"kind":"InputObjectTypeExtension","name":{"kind":"Name","value":"Foo","loc":{"start":298,"end":301}},"fields":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"bar","loc":{"start":312,"end":315}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":317,"end":320}},"loc":{"start":317,"end":320}},"loc":{"start":312,"end":320}}],"loc":{"start":285,"end":328}}],"loc":{"start":0,"end":333}}`,
+      versionInfo.major >= 17
+        ? `{"kind":"Document","definitions":[{"kind":"SchemaExtension","operationTypes":[{"kind":"OperationTypeDefinition","operation":"query","type":{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":38,"end":41}},"loc":{"start":38,"end":41}},"loc":{"start":31,"end":41}}],"loc":{"start":7,"end":49}},{"kind":"ScalarTypeExtension","name":{"kind":"Name","value":"Foo","loc":{"start":70,"end":73}},"directives":[{"kind":"Directive","name":{"kind":"Name","value":"foo","loc":{"start":75,"end":78}},"loc":{"start":74,"end":78}}],"loc":{"start":56,"end":78}},{"kind":"ObjectTypeExtension","name":{"kind":"Name","value":"Foo","loc":{"start":97,"end":100}},"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":111,"end":114}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":116,"end":119}},"loc":{"start":116,"end":119}},"loc":{"start":111,"end":119}}],"loc":{"start":85,"end":127}},{"kind":"InterfaceTypeExtension","name":{"kind":"Name","value":"Foo","loc":{"start":151,"end":154}},"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":165,"end":168}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":170,"end":173}},"loc":{"start":170,"end":173}},"loc":{"start":165,"end":173}}],"loc":{"start":134,"end":181}},{"kind":"UnionTypeExtension","name":{"kind":"Name","value":"FooBar","loc":{"start":201,"end":207}},"types":[{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":210,"end":213}},"loc":{"start":210,"end":213}},{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":216,"end":219}},"loc":{"start":216,"end":219}}],"loc":{"start":188,"end":219}},{"kind":"EnumTypeExtension","name":{"kind":"Name","value":"FooBar","loc":{"start":238,"end":244}},"values":[{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"FOO","loc":{"start":255,"end":258}},"loc":{"start":255,"end":258}},{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"BAR","loc":{"start":267,"end":270}},"loc":{"start":267,"end":270}}],"loc":{"start":226,"end":278}},{"kind":"InputObjectTypeExtension","name":{"kind":"Name","value":"Foo","loc":{"start":298,"end":301}},"fields":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"bar","loc":{"start":312,"end":315}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":317,"end":320}},"loc":{"start":317,"end":320}},"loc":{"start":312,"end":320}}],"loc":{"start":285,"end":328}}],"loc":{"start":0,"end":333}}`
+        : `{"kind":"Document","definitions":[{"kind":"SchemaExtension","operationTypes":[{"kind":"OperationTypeDefinition","operation":"query","type":{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":38,"end":41}},"loc":{"start":38,"end":41}},"loc":{"start":31,"end":41}}],"loc":{"start":7,"end":49}},{"kind":"ScalarTypeExtension","name":{"kind":"Name","value":"Foo","loc":{"start":70,"end":73}},"directives":[{"kind":"Directive","name":{"kind":"Name","value":"foo","loc":{"start":75,"end":78}},"loc":{"start":74,"end":78}}],"loc":{"start":56,"end":78}},{"kind":"ObjectTypeExtension","name":{"kind":"Name","value":"Foo","loc":{"start":97,"end":100}},"interfaces":[],"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":111,"end":114}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":116,"end":119}},"loc":{"start":116,"end":119}},"loc":{"start":111,"end":119}}],"loc":{"start":85,"end":127}},{"kind":"InterfaceTypeExtension","name":{"kind":"Name","value":"Foo","loc":{"start":151,"end":154}},"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"bar","loc":{"start":165,"end":168}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":170,"end":173}},"loc":{"start":170,"end":173}},"loc":{"start":165,"end":173}}],"loc":{"start":134,"end":181}},{"kind":"UnionTypeExtension","name":{"kind":"Name","value":"FooBar","loc":{"start":201,"end":207}},"types":[{"kind":"NamedType","name":{"kind":"Name","value":"Foo","loc":{"start":210,"end":213}},"loc":{"start":210,"end":213}},{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":216,"end":219}},"loc":{"start":216,"end":219}}],"loc":{"start":188,"end":219}},{"kind":"EnumTypeExtension","name":{"kind":"Name","value":"FooBar","loc":{"start":238,"end":244}},"values":[{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"FOO","loc":{"start":255,"end":258}},"loc":{"start":255,"end":258}},{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"BAR","loc":{"start":267,"end":270}},"loc":{"start":267,"end":270}}],"loc":{"start":226,"end":278}},{"kind":"InputObjectTypeExtension","name":{"kind":"Name","value":"Foo","loc":{"start":298,"end":301}},"fields":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"bar","loc":{"start":312,"end":315}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Bar","loc":{"start":317,"end":320}},"loc":{"start":317,"end":320}},"loc":{"start":312,"end":320}}],"loc":{"start":285,"end":328}}],"loc":{"start":0,"end":333}}`,
     );
     expect(stringOut).not.toContain(`"arguments":[]`);
     expect(stringOut).not.toContain(`"directives":[]`);
diff --git a/packages/optimize/tests/remove-loc.spec.ts b/packages/optimize/tests/remove-loc.spec.ts
index cd264a28a62..713adb16fd4 100644
--- a/packages/optimize/tests/remove-loc.spec.ts
+++ b/packages/optimize/tests/remove-loc.spec.ts
@@ -1,4 +1,4 @@
-import { parse, print } from 'graphql';
+import { parse, print, versionInfo } from 'graphql';
 import { removeLoc } from '../src/optimizers/remove-loc.js';
 
 describe('removeLoc', () => {
@@ -25,7 +25,9 @@ describe('removeLoc', () => {
     const out = removeLoc(doc);
     const stringOut = JSON.stringify(out);
     expect(stringOut).toBe(
-      `{"kind":"Document","definitions":[{"kind":"OperationDefinition","operation":"query","name":{"kind":"Name","value":"findUser"},"variableDefinitions":[{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"userId"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}},"directives":[]}],"directives":[],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"user"},"arguments":[{"kind":"Argument","name":{"kind":"Name","value":"id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"userId"}}}],"directives":[],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"FragmentSpread","name":{"kind":"Name","value":"UserFields"},"directives":[]}]}}]}},{"kind":"OperationDefinition","operation":"query","name":{"kind":"Name","value":"something"},"variableDefinitions":[],"directives":[],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"test"},"arguments":[],"directives":[],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"test"},"arguments":[],"directives":[]}]}}]}},{"kind":"FragmentDefinition","name":{"kind":"Name","value":"UserFields"},"typeCondition":{"kind":"NamedType","name":{"kind":"Name","value":"User"}},"directives":[],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"},"arguments":[],"directives":[]},{"kind":"Field","name":{"kind":"Name","value":"username"},"arguments":[],"directives":[]},{"kind":"Field","name":{"kind":"Name","value":"role"},"arguments":[],"directives":[]}]}}]}`,
+      versionInfo.major >= 17
+        ? `{"kind":"Document","definitions":[{"kind":"OperationDefinition","operation":"query","name":{"kind":"Name","value":"findUser"},"variableDefinitions":[{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"userId"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"user"},"arguments":[{"kind":"Argument","name":{"kind":"Name","value":"id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"userId"}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"FragmentSpread","name":{"kind":"Name","value":"UserFields"}}]}}]}},{"kind":"OperationDefinition","operation":"query","name":{"kind":"Name","value":"something"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"test"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"test"}}]}}]}},{"kind":"FragmentDefinition","name":{"kind":"Name","value":"UserFields"},"typeCondition":{"kind":"NamedType","name":{"kind":"Name","value":"User"}},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"username"}},{"kind":"Field","name":{"kind":"Name","value":"role"}}]}}]}`
+        : `{"kind":"Document","definitions":[{"kind":"OperationDefinition","operation":"query","name":{"kind":"Name","value":"findUser"},"variableDefinitions":[{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"userId"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}},"directives":[]}],"directives":[],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"user"},"arguments":[{"kind":"Argument","name":{"kind":"Name","value":"id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"userId"}}}],"directives":[],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"FragmentSpread","name":{"kind":"Name","value":"UserFields"},"directives":[]}]}}]}},{"kind":"OperationDefinition","operation":"query","name":{"kind":"Name","value":"something"},"variableDefinitions":[],"directives":[],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"test"},"arguments":[],"directives":[],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"test"},"arguments":[],"directives":[]}]}}]}},{"kind":"FragmentDefinition","name":{"kind":"Name","value":"UserFields"},"typeCondition":{"kind":"NamedType","name":{"kind":"Name","value":"User"}},"directives":[],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"},"arguments":[],"directives":[]},{"kind":"Field","name":{"kind":"Name","value":"username"},"arguments":[],"directives":[]},{"kind":"Field","name":{"kind":"Name","value":"role"},"arguments":[],"directives":[]}]}}]}`,
     );
     expect(stringOut).not.toContain(`"loc":`);
     expect(() => print(out)).not.toThrow();
diff --git a/packages/schema/src/addResolversToSchema.ts b/packages/schema/src/addResolversToSchema.ts
index 30ef54c125b..60d5e949def 100644
--- a/packages/schema/src/addResolversToSchema.ts
+++ b/packages/schema/src/addResolversToSchema.ts
@@ -72,9 +72,9 @@ export function addResolversToSchema({
       // allow -- without recommending -- overriding of specified scalar types
       for (const fieldName in resolverValue) {
         if (fieldName.startsWith('__')) {
-          type[fieldName.substring(2)] = resolverValue[fieldName];
+          setScalarConfigProperty(type, fieldName.substring(2), resolverValue[fieldName]);
         } else {
-          type[fieldName] = resolverValue[fieldName];
+          setScalarConfigProperty(type, fieldName, resolverValue[fieldName]);
         }
       }
     } else if (isEnumType(type)) {
@@ -149,6 +149,30 @@ export function addResolversToSchema({
   return schema;
 }
 
+// graphql-js@17 introduced `coerceOutputValue`/`coerceInputValue` as the methods
+// actually invoked during execution, defaulting them from `serialize`/`parseValue`
+// only at `GraphQLScalarType` construction time (see graphql-js's own
+// `GraphQLScalarType` constructor). Setting `serialize`/`parseValue` on an
+// already-built type (or in a config copied via `toConfig()`, which also carries
+// forward the old `coerceOutputValue`/`coerceInputValue`) no longer updates what
+// execution actually calls, so mirror the assignment onto the new method name too.
+const LEGACY_TO_V17_SCALAR_METHOD: Record<string, string> = {
+  serialize: 'coerceOutputValue',
+  parseValue: 'coerceInputValue',
+};
+
+function setScalarConfigProperty(
+  target: Record<string, any>,
+  propName: string,
+  value: unknown,
+): void {
+  target[propName] = value;
+  const v17MethodName = LEGACY_TO_V17_SCALAR_METHOD[propName];
+  if (v17MethodName) {
+    target[v17MethodName] = value;
+  }
+}
+
 function addResolversToExistingSchema(
   schema: GraphQLSchema,
   resolvers: IResolvers,
@@ -162,7 +186,7 @@ function addResolversToExistingSchema(
     if (isScalarType(type)) {
       for (const fieldName in resolverValue) {
         if (fieldName.startsWith('__')) {
-          type[fieldName.substring(2)] = resolverValue[fieldName];
+          setScalarConfigProperty(type, fieldName.substring(2), resolverValue[fieldName]);
         } else if (fieldName === 'astNode' && type.astNode != null) {
           type.astNode = {
             ...type.astNode,
@@ -188,7 +212,7 @@ function addResolversToExistingSchema(
             (resolverValue as GraphQLScalarType).extensions,
           );
         } else {
-          type[fieldName] = resolverValue[fieldName];
+          setScalarConfigProperty(type, fieldName, resolverValue[fieldName]);
         }
       }
     } else if (isEnumType(type)) {
@@ -286,9 +310,15 @@ function createNewSchemaWithResolvers(
       const config = type.toConfig();
       const resolverValue = resolvers[type.name];
       if (!isSpecifiedScalarType(type) && resolverValue != null) {
+        const coerceInputValueOverridden = ['parseValue', 'coerceInputValue'].some(
+          name => name in resolverValue || `__${name}` in resolverValue,
+        );
+        const parseLiteralOverridden = ['parseLiteral', 'coerceInputLiteral'].some(
+          name => name in resolverValue || `__${name}` in resolverValue,
+        );
         for (const fieldName in resolverValue) {
           if (fieldName.startsWith('__')) {
-            config[fieldName.substring(2)] = resolverValue[fieldName];
+            setScalarConfigProperty(config, fieldName.substring(2), resolverValue[fieldName]);
           } else if (fieldName === 'astNode' && config.astNode != null) {
             config.astNode = {
               ...config.astNode,
@@ -314,10 +344,14 @@ function createNewSchemaWithResolvers(
               (resolverValue as GraphQLScalarType).extensions,
             );
           } else {
-            config[fieldName] = resolverValue[fieldName];
+            setScalarConfigProperty(config, fieldName, resolverValue[fieldName]);
           }
         }
 
+        if (coerceInputValueOverridden && !parseLiteralOverridden) {
+          delete (config as any).parseLiteral;
+        }
+
         return new GraphQLScalarType(config);
       }
     },
diff --git a/packages/schema/tests/schemaGenerator.test.ts b/packages/schema/tests/schemaGenerator.test.ts
index a68f77a058f..9313afcbed1 100644
--- a/packages/schema/tests/schemaGenerator.test.ts
+++ b/packages/schema/tests/schemaGenerator.test.ts
@@ -15,6 +15,7 @@ import {
   Kind,
   parse,
   VariableDefinitionNode,
+  versionInfo,
 } from 'graphql';
 import { execute, isIncrementalResult } from '@graphql-tools/executor';
 import { addResolversToSchema, chainResolvers, makeExecutableSchema } from '@graphql-tools/schema';
@@ -2027,10 +2028,12 @@ describe('can specify lexical parser options', () => {
       }
     `;
 
-    const parsedQuery = parse(query, {
-      experimentalFragmentVariables: true,
-      allowLegacyFragmentVariables: true,
-    } as any);
+    const parsedQuery = parse(
+      query,
+      versionInfo.major >= 17
+        ? ({ experimentalFragmentArguments: true } as any)
+        : ({ experimentalFragmentVariables: true, allowLegacyFragmentVariables: true } as any),
+    );
 
     const hoist = (document: DocumentNode): DocumentNode => {
       const variableDefs: Array<VariableDefinitionNode> = [];
diff --git a/packages/utils/src/collectFields.ts b/packages/utils/src/collectFields.ts
index 8646f86040a..64a57e816b2 100644
--- a/packages/utils/src/collectFields.ts
+++ b/packages/utils/src/collectFields.ts
@@ -15,6 +15,7 @@ import {
 } from 'graphql';
 import { AccumulatorMap } from './AccumulatorMap.js';
 import { GraphQLDeferDirective } from './directives.js';
+import { toGraphQLJSVariableValues } from './graphqlJSCompat.js';
 import { memoize5 } from './memoize.js';
 
 export interface PatchFields {
@@ -179,12 +180,18 @@ export function shouldIncludeNode(
   variableValues: any,
   node: FragmentSpreadNode | FieldNode | InlineFragmentNode,
 ): boolean {
-  const skip = getDirectiveValues(GraphQLSkipDirective, node, variableValues);
+  if (!node.directives?.length) {
+    return true;
+  }
+
+  const wrappedVariableValues = toGraphQLJSVariableValues(variableValues);
+
+  const skip = getDirectiveValues(GraphQLSkipDirective, node, wrappedVariableValues);
   if (skip?.['if'] === true) {
     return false;
   }
 
-  const include = getDirectiveValues(GraphQLIncludeDirective, node, variableValues);
+  const include = getDirectiveValues(GraphQLIncludeDirective, node, wrappedVariableValues);
   if (include?.['if'] === false) {
     return false;
   }
@@ -230,7 +237,15 @@ export function getDeferValues(
   variableValues: any,
   node: FragmentSpreadNode | InlineFragmentNode,
 ): undefined | { label: string | undefined } {
-  const defer = getDirectiveValues(GraphQLDeferDirective, node, variableValues);
+  if (!node.directives?.length) {
+    return;
+  }
+
+  const defer = getDirectiveValues(
+    GraphQLDeferDirective,
+    node,
+    toGraphQLJSVariableValues(variableValues),
+  );
 
   if (!defer) {
     return;
diff --git a/packages/utils/src/getArgumentValues.ts b/packages/utils/src/getArgumentValues.ts
index 05c3ee60702..c6965afa55b 100644
--- a/packages/utils/src/getArgumentValues.ts
+++ b/packages/utils/src/getArgumentValues.ts
@@ -12,8 +12,11 @@ import {
   valueFromASTUntyped,
 } from 'graphql';
 import { createGraphQLError } from './errors.js';
+import { getOptionalGraphQLJSExport, toGraphQLJSVariableValues } from './graphqlJSCompat.js';
 import { hasOwnProperty } from './jsutils.js';
 
+const coerceInputLiteral = getOptionalGraphQLJSExport('coerceInputLiteral');
+
 /**
  * Prepares an object map of argument values given a list of argument
  * definitions and list of argument AST nodes.
@@ -38,16 +41,36 @@ export function getArgumentValues(
     {},
   );
 
+  // `variableValues` is loop-invariant; wrap (and memoize) it once instead of
+  // once per argument, reusing the same graphql-js@17 `{ coerced, sources }`
+  // shape used for directive-argument coercion elsewhere in this package.
+  const wrappedVariableValues = toGraphQLJSVariableValues(variableValues);
+
   for (const arg of def.args) {
     const argumentNode = argNodeMap[arg.name];
 
     if (!argumentNode) {
       if ('default' in (arg as any) && (arg as any).default) {
         // graphql v17
-        coercedValues[arg.name] =
-          'value' in (arg as any).default
-            ? (arg as any).default.value
-            : valueFromASTUntyped((arg as any).default.literal);
+        const defaultInput = (arg as any).default;
+        if ('value' in defaultInput) {
+          coercedValues[arg.name] = defaultInput.value;
+        } else {
+          const coercedDefaultValue = coerceInputLiteral
+            ? coerceInputLiteral(defaultInput.literal, arg.type)
+            : valueFromASTUntyped(defaultInput.literal);
+          if (coercedDefaultValue === undefined) {
+            // Schema validation should catch an invalid default value before
+            // execution; this mirrors graphql-js's own `coerceDefaultValue`,
+            // which treats this case as an invariant failure rather than
+            // silently producing `undefined`.
+            throw createGraphQLError(
+              `Argument "${arg.name}" has invalid default value ${print(defaultInput.literal)}.`,
+              { nodes: [defaultInput.literal] },
+            );
+          }
+          coercedValues[arg.name] = coercedDefaultValue;
+        }
       } else if (arg.defaultValue !== undefined) {
         // graphql < v17
         coercedValues[arg.name] = arg.defaultValue;
@@ -93,7 +116,9 @@ export function getArgumentValues(
       );
     }
 
-    const coercedValue = valueFromAST(valueNode, arg.type, variableValues);
+    const coercedValue = coerceInputLiteral
+      ? coerceInputLiteral(valueNode, arg.type, wrappedVariableValues)
+      : valueFromAST(valueNode, arg.type, variableValues);
     if (coercedValue === undefined) {
       // Note: ValuesOfCorrectTypeRule validation should catch this before
       // execution. This is a runtime check to ensure execution does not
diff --git a/packages/utils/src/getDirectiveExtensions.ts b/packages/utils/src/getDirectiveExtensions.ts
index f2bfa9b793d..4b1cde2816f 100644
--- a/packages/utils/src/getDirectiveExtensions.ts
+++ b/packages/utils/src/getDirectiveExtensions.ts
@@ -1,8 +1,11 @@
 import type { ASTNode, DirectiveNode, GraphQLSchema } from 'graphql';
 import { valueFromAST, valueFromASTUntyped } from 'graphql';
 import { getArgumentValues } from './getArgumentValues.js';
+import { getOptionalGraphQLJSExport } from './graphqlJSCompat.js';
 import { memoize1 } from './memoize.js';
 
+const coerceInputLiteral = getOptionalGraphQLJSExport('coerceInputLiteral');
+
 export type DirectableASTNode = ASTNode & {
   directives?: readonly DirectiveNode[] | undefined;
 };
@@ -89,7 +92,9 @@ export function getDirectiveExtensions<
             if (value[argName] == null) {
               const argInDirective = directiveInSchema?.args.find(arg => arg.name === argName);
               if (argInDirective) {
-                value[argName] = valueFromAST(argNode.value, argInDirective.type);
+                value[argName] = coerceInputLiteral
+                  ? coerceInputLiteral(argNode.value, argInDirective.type)
+                  : valueFromAST(argNode.value, argInDirective.type);
               }
             }
             if (value[argName] == null) {
diff --git a/packages/utils/src/graphqlJSCompat.ts b/packages/utils/src/graphqlJSCompat.ts
new file mode 100644
index 00000000000..8f8b2fb86fe
--- /dev/null
+++ b/packages/utils/src/graphqlJSCompat.ts
@@ -0,0 +1,130 @@
+import { GraphQLScalarType, Kind, versionInfo } from 'graphql';
+// eslint-disable-next-line @typescript-eslint/no-restricted-imports -- namespace import only used for optional access to exports introduced in newer graphql-js versions than this package's supported range, not the restricted names
+import * as GraphQLJS from 'graphql';
+import { memoize1 } from './memoize.js';
+
+type GraphQLJSModule = typeof import('graphql');
+
+// Safe stand-in for graphql-js versions where a given export isn't declared at
+// all, so calling the looked-up value as a function still type-checks; the
+// runtime feature-detection below is what actually guards whether the export
+// exists, not this type.
+type UnknownFunction = (...args: any[]) => any;
+
+/**
+ * Looks up an export that only exists on newer graphql-js versions than the
+ * range this package supports (e.g. `coerceInputLiteral`/`validateInputValue`,
+ * both introduced in graphql-js@17), returning `undefined` on older versions
+ * where the export doesn't exist yet. The type is read directly off
+ * graphql-js's own declarations for whichever version is currently installed,
+ * instead of a hand-written signature that could drift out of sync.
+ */
+export function getOptionalGraphQLJSExport<Name extends string>(
+  name: Name,
+): (Name extends keyof GraphQLJSModule ? GraphQLJSModule[Name] : UnknownFunction) | undefined {
+  return (GraphQLJS as Record<string, unknown>)[name] as any;
+}
+
+const isGraphQLJS17OrAbove = versionInfo.major >= 17;
+
+// Converts an arbitrary runtime value to a GraphQL AST literal, used only as
+// `anyValueType`'s `valueToLiteral` below. graphql-js@17's own generic fallback
+// (`defaultScalarValueToLiteral`, not part of its public API so it can't be
+// reused directly) only serializes an object's own enumerable properties,
+// which silently drops data for values like `Date` (whose contents live in
+// methods, not own properties) instead of erroring — so this mirrors it but
+// special-cases `.toJSON()` first, the same convention `JSON.stringify` uses,
+// so such values round-trip instead of flattening to `{}`.
+function valueToASTLiteral(value: unknown): any {
+  if (value == null) {
+    return { kind: Kind.NULL };
+  }
+  if (typeof value === 'boolean') {
+    return { kind: Kind.BOOLEAN, value };
+  }
+  if (typeof value === 'string') {
+    return { kind: Kind.STRING, value, block: false };
+  }
+  if (typeof value === 'bigint') {
+    return { kind: Kind.INT, value: value.toString() };
+  }
+  if (typeof value === 'number') {
+    if (!Number.isFinite(value)) {
+      return { kind: Kind.NULL };
+    }
+    return Number.isInteger(value)
+      ? { kind: Kind.INT, value: String(value) }
+      : { kind: Kind.FLOAT, value: String(value) };
+  }
+  if (typeof value === 'object') {
+    if (typeof (value as { toJSON?: unknown }).toJSON === 'function') {
+      return valueToASTLiteral((value as { toJSON(): unknown }).toJSON());
+    }
+    if (Symbol.iterator in (value as object)) {
+      return {
+        kind: Kind.LIST,
+        values: Array.from(value as Iterable<unknown>, valueToASTLiteral),
+      };
+    }
+    const fields: Array<Record<string, unknown>> = [];
+    for (const [fieldName, fieldValue] of Object.entries(value)) {
+      if (fieldValue !== undefined) {
+        fields.push({
+          kind: Kind.OBJECT_FIELD,
+          name: { kind: Kind.NAME, value: fieldName },
+          value: valueToASTLiteral(fieldValue),
+        });
+      }
+    }
+    return { kind: Kind.OBJECT, fields };
+  }
+  // Functions, symbols, etc. have no literal representation.
+  return { kind: Kind.NULL };
+}
+
+// A throwaway scalar type used only as `sources[varName].signature.type` below.
+// graphql-js@17's `valueToLiteral` (invoked internally to resolve a variable
+// nested inside an object/list literal argument, e.g. when a custom scalar
+// implements its own `coerceInputLiteral`) special-cases NonNull/List/InputObject
+// types but otherwise defers entirely to the leaf type's own `valueToLiteral`.
+// This package only has each variable's already-coerced runtime value at this
+// point, not its declared `GraphQLInputType` (that would require threading the
+// operation's variable definitions through every call site), so this bare
+// scalar supplies a type-agnostic `valueToLiteral` that works for any runtime
+// value regardless of the variable's real declared type.
+const anyValueType = new GraphQLScalarType({
+  name: '_GraphQLToolsAnyValue',
+  valueToLiteral: valueToASTLiteral,
+} as any);
+
+function buildVariableSources(variableValues: Record<string, any>): Record<string, unknown> {
+  const sources: Record<string, unknown> = Object.create(null);
+  for (const varName of Object.keys(variableValues)) {
+    sources[varName] = { signature: { type: anyValueType }, value: variableValues[varName] };
+  }
+  return sources;
+}
+
+// `variableValues` is the same object reference for the lifetime of a single
+// execution (or, in `getArgumentValues.ts`'s case, a single call), so memoize
+// the wrapper by reference instead of reallocating `{ coerced, sources }` on
+// every call site that needs it (once per AST node during selection-set
+// collection, once per resolved field during execution).
+const wrapVariableValues = memoize1((variableValues: Record<string, any>) => ({
+  coerced: variableValues,
+  sources: buildVariableSources(variableValues),
+}));
+
+/**
+ * graphql-js@17's built-in `getDirectiveValues`/`getArgumentValues` expect
+ * `variableValues` as the structured `{ coerced, sources }` shape rather than
+ * a flat map of variable name to value. This package deals in flat maps
+ * everywhere else, so wrap them right before handing them to graphql-js's own
+ * (unforked) directive-argument coercion, only for graphql-js >= 17.
+ */
+export function toGraphQLJSVariableValues(variableValues: any): any {
+  if (variableValues == null || !isGraphQLJS17OrAbove) {
+    return variableValues;
+  }
+  return wrapVariableValues(variableValues);
+}
diff --git a/packages/utils/src/index.ts b/packages/utils/src/index.ts
index ee5b6831896..ec53696d102 100644
--- a/packages/utils/src/index.ts
+++ b/packages/utils/src/index.ts
@@ -1,3 +1,4 @@
+export * from './graphqlJSCompat.js';
 export * from './loaders.js';
 export * from './helpers.js';
 export * from './get-directives.js';
diff --git a/packages/utils/tests/getArgumentValues.spec.ts b/packages/utils/tests/getArgumentValues.spec.ts
new file mode 100644
index 00000000000..1f72ac68442
--- /dev/null
+++ b/packages/utils/tests/getArgumentValues.spec.ts
@@ -0,0 +1,62 @@
+import {
+  FieldNode,
+  GraphQLField,
+  GraphQLScalarType,
+  OperationDefinitionNode,
+  parse,
+  valueFromASTUntyped,
+  versionInfo,
+} from 'graphql';
+import { getArgumentValues } from '../src/getArgumentValues.js';
+
+// These tests exercise graphql-js@17's `coerceInputLiteral` mechanism
+// specifically (a custom scalar implementing it, with a variable nested
+// inside an object literal argument) — on older versions, argument coercion
+// takes an entirely different (legacy `valueFromAST`) code path that isn't
+// what's under test here, so skip rather than assert on that unrelated path.
+(versionInfo.major >= 17 ? describe : describe.skip)('getArgumentValues', () => {
+  it('resolves a variable nested inside an object literal argument for a custom scalar with coerceInputLiteral', () => {
+    const JSONScalar = new GraphQLScalarType({
+      name: 'JSON',
+      coerceInputValue: (v: any) => v,
+      // A real `coerceInputLiteral` parses the AST node itself, same as the
+      // legacy `parseLiteral` it supersedes.
+      coerceInputLiteral: (node: any) => valueFromASTUntyped(node),
+    } as any);
+
+    const field = {
+      name: 'foo',
+      args: [{ name: 'data', type: JSONScalar }],
+    } as unknown as GraphQLField<any, any>;
+
+    const doc = parse('{ foo(data: { key: $v }) }');
+    const op = doc.definitions[0] as OperationDefinitionNode;
+    const fieldNode = op.selectionSet.selections[0] as FieldNode;
+
+    const result = getArgumentValues(field, fieldNode, { v: 'hello' });
+
+    expect(result).toEqual({ data: { key: 'hello' } });
+  });
+
+  it('preserves a Date-valued variable nested inside an object literal argument', () => {
+    const JSONScalar = new GraphQLScalarType({
+      name: 'JSON',
+      coerceInputValue: (v: any) => v,
+      coerceInputLiteral: (node: any) => valueFromASTUntyped(node),
+    } as any);
+
+    const field = {
+      name: 'foo',
+      args: [{ name: 'data', type: JSONScalar }],
+    } as unknown as GraphQLField<any, any>;
+
+    const doc = parse('{ foo(data: { occurredAt: $when }) }');
+    const op = doc.definitions[0] as OperationDefinitionNode;
+    const fieldNode = op.selectionSet.selections[0] as FieldNode;
+
+    const when = new Date('2024-01-01T00:00:00.000Z');
+    const result = getArgumentValues(field, fieldNode, { when });
+
+    expect(result).toEqual({ data: { occurredAt: when.toJSON() } });
+  });
+});
diff --git a/packages/utils/tests/mapSchema.test.ts b/packages/utils/tests/mapSchema.test.ts
index d93245f98bd..dbccfc216db 100644
--- a/packages/utils/tests/mapSchema.test.ts
+++ b/packages/utils/tests/mapSchema.test.ts
@@ -809,6 +809,7 @@ describe('mapSchema', () => {
                     type: GraphQLID,
                     description: 'Unique ID',
                     args: {},
+                    extensions: {},
                     resolve(object: any) {
                       const hash = createHash('sha1');
                       hash.update(type.name);
diff --git a/patches/@types+relay-compiler+8.0.4.patch b/patches/@types+relay-compiler+8.0.4.patch
new file mode 100644
index 00000000000..b078876b600
--- /dev/null
+++ b/patches/@types+relay-compiler+8.0.4.patch
@@ -0,0 +1,23 @@
+diff --git a/node_modules/@types/relay-compiler/lib/core/Schema.d.ts b/node_modules/@types/relay-compiler/lib/core/Schema.d.ts
+index c79aea0..804e180 100755
+--- a/node_modules/@types/relay-compiler/lib/core/Schema.d.ts
++++ b/node_modules/@types/relay-compiler/lib/core/Schema.d.ts
+@@ -1,11 +1,17 @@
+ import {
+     TypeNode,
+     DocumentNode,
+-    DirectiveLocationEnum,
++    DirectiveLocation,
+     ValueNode,
+ } from 'graphql';
+ import { Field as IRField } from './IR';
+ 
++// `DirectiveLocationEnum` was removed in graphql-js@17 in favor of a dual value/type
++// export named `DirectiveLocation`, which doesn't work as a bare type reference on
++// older graphql-js versions (there, `DirectiveLocation` is only a value). This
++// derives the member-value union directly so it resolves correctly either way.
++type DirectiveLocationEnum = (typeof DirectiveLocation)[keyof typeof DirectiveLocation];
++
+ export type AbstractTypeID = any;
+ export type CompositeTypeID = any;
+ export type EnumTypeID = any;
diff --git a/patches/subscriptions-transport-ws+0.11.0.patch b/patches/subscriptions-transport-ws+0.11.0.patch
new file mode 100644
index 00000000000..773711a4314
--- /dev/null
+++ b/patches/subscriptions-transport-ws+0.11.0.patch
@@ -0,0 +1,32 @@
+diff --git a/node_modules/subscriptions-transport-ws/dist/client.d.ts b/node_modules/subscriptions-transport-ws/dist/client.d.ts
+index c50cb80..ff43008 100644
+--- a/node_modules/subscriptions-transport-ws/dist/client.d.ts
++++ b/node_modules/subscriptions-transport-ws/dist/client.d.ts
+@@ -1,5 +1,5 @@
+ import { ListenerFn } from 'eventemitter3';
+-import { ExecutionResult } from 'graphql/execution/execute';
++import { ExecutionResult } from 'graphql';
+ import { DocumentNode } from 'graphql/language/ast';
+ export interface Observer<T> {
+     next?: (value: T) => void;
+diff --git a/node_modules/subscriptions-transport-ws/dist/server.d.ts b/node_modules/subscriptions-transport-ws/dist/server.d.ts
+index d46ca46..2a8ce0d 100644
+--- a/node_modules/subscriptions-transport-ws/dist/server.d.ts
++++ b/node_modules/subscriptions-transport-ws/dist/server.d.ts
+@@ -1,6 +1,6 @@
+ /// <reference types="node" />
+ import * as WebSocket from 'ws';
+-import { ExecutionResult, GraphQLSchema, DocumentNode, ValidationContext, ExecutionArgs, SubscriptionArgs } from 'graphql';
++import { ExecutionResult, GraphQLSchema, DocumentNode, ValidationContext, ExecutionArgs } from 'graphql';
+ import { IncomingMessage } from 'http';
+ export declare type ExecutionIterator = AsyncIterator<ExecutionResult>;
+ export interface ExecutionParams<TContext = any> {
+@@ -38,7 +38,7 @@ export interface OperationMessage {
+     type: string;
+ }
+ export declare type ExecuteFunction = (args: ExecutionArgs) => ExecutionResult | Promise<ExecutionResult> | AsyncIterator<ExecutionResult>;
+-export declare type SubscribeFunction = (args: SubscriptionArgs) => AsyncIterator<ExecutionResult> | Promise<AsyncIterator<ExecutionResult> | ExecutionResult>;
++export declare type SubscribeFunction = (args: ExecutionArgs) => AsyncIterator<ExecutionResult> | Promise<AsyncIterator<ExecutionResult> | ExecutionResult>;
+ export interface ServerOptions {
+     rootValue?: any;
+     schema?: GraphQLSchema;