all: bump to Go-1.21, drop Go-1.19

sbinet · sbinet · commit 8aad608f521d · 2023-08-31T07:47:16.000+02:00
Signed-off-by: Sebastien Binet &lt;binet@cern.ch&gt;
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -10,7 +10,7 @@ jobs:
     name: Build
     strategy:
       matrix:
-        go-version: [1.20.x, 1.19.x]
+        go-version: [1.21.x, 1.20.x]
         platform: [ubuntu-20.04, macos-latest]
     runs-on: ${{ matrix.platform }}
     env:
diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
@@ -13,7 +13,7 @@ jobs:
     if: github.event.pull_request.merged == true
     strategy:
       matrix:
-        go-version: [1.19.x]
+        go-version: [1.21.x]
         platform: [ubuntu-latest]
 
     runs-on: ${{ matrix.platform }}
diff --git a/appveyor.yml b/appveyor.yml
@@ -2,7 +2,7 @@ build: off
 
 image: Visual Studio 2019
 
-stack: go 1.19
+stack: go 1.20
 
 clone_folder: c:\gopath\src\gonum.org\v1\plot
 
diff --git a/go.mod b/go.mod
@@ -1,6 +1,6 @@
 module gonum.org/v1/plot
 
-go 1.19
+go 1.20
 
 require (
 	gioui.org v0.2.0
