chore(typescript): release 3.70.1

Author: github-actions[bot]

…eleased/fix-types-node-vitest-compat.yml …/3.70.1/fix-types-node-vitest-compat.ymlgenerators/typescript/sdk/changes/unreleased/fix-types-node-vitest-compat.yml renamed to generators/typescript/sdk/changes/3.70.1/fix-types-node-vitest-compat.yml generators/typescript/sdk/changes/unreleased/fix-types-node-vitest-compat.yml renamed to generators/typescript/sdk/changes/3.70.1/fix-types-node-vitest-compat.yml

@@ -1,4 +1,14 @@
 # yaml-language-server: $schema=../../../fern-versions-yml.schema.json
+- version: 3.70.1
+  changelogEntry:
+    - summary: |
+        Update `@types/node` from `^18.19.70` to `^20.0.0` in generated SDKs to
+        satisfy vitest 4.x peer dependency requirements. Previously, `npm install`
+        failed with `ERESOLVE` because vitest 4.x requires
+        `@types/node@^20.0.0 || ^22.0.0 || >=24.0.0`.
+      type: fix
+  createdAt: "2026-05-07"
+  irVersion: 66
 - version: 3.70.0
   changelogEntry:
     - summary: |