diff --git a/.github/workflows/__all-platform-bundle.yml b/.github/workflows/__all-platform-bundle.yml
index 9a1ee56b3..bb0e2d6dc 100644
--- a/.github/workflows/__all-platform-bundle.yml
+++ b/.github/workflows/__all-platform-bundle.yml
@@ -48,7 +48,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - id: init
         uses: ./../action/init
diff --git a/.github/workflows/__analyze-ref-input.yml b/.github/workflows/__analyze-ref-input.yml
index 3a94ed3b2..28eaf73b8 100644
--- a/.github/workflows/__analyze-ref-input.yml
+++ b/.github/workflows/__analyze-ref-input.yml
@@ -52,7 +52,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         with:
diff --git a/.github/workflows/__build-mode-manual.yml b/.github/workflows/__build-mode-manual.yml
index 953af3a8e..201a837b5 100644
--- a/.github/workflows/__build-mode-manual.yml
+++ b/.github/workflows/__build-mode-manual.yml
@@ -48,7 +48,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         id: init
diff --git a/.github/workflows/__export-file-baseline-information.yml b/.github/workflows/__export-file-baseline-information.yml
index 31de633f0..e81931ba5 100644
--- a/.github/workflows/__export-file-baseline-information.yml
+++ b/.github/workflows/__export-file-baseline-information.yml
@@ -52,7 +52,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         id: init
diff --git a/.github/workflows/__go-custom-queries.yml b/.github/workflows/__go-custom-queries.yml
index 7a6c55102..030148aac 100644
--- a/.github/workflows/__go-custom-queries.yml
+++ b/.github/workflows/__go-custom-queries.yml
@@ -50,7 +50,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         with:
diff --git a/.github/workflows/__go-indirect-tracing-workaround-diagnostic.yml b/.github/workflows/__go-indirect-tracing-workaround-diagnostic.yml
index 6cf6f6f24..d068ae467 100644
--- a/.github/workflows/__go-indirect-tracing-workaround-diagnostic.yml
+++ b/.github/workflows/__go-indirect-tracing-workaround-diagnostic.yml
@@ -48,7 +48,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         with:
diff --git a/.github/workflows/__go-indirect-tracing-workaround-no-file-program.yml b/.github/workflows/__go-indirect-tracing-workaround-no-file-program.yml
index 3e005174f..df31055a1 100644
--- a/.github/workflows/__go-indirect-tracing-workaround-no-file-program.yml
+++ b/.github/workflows/__go-indirect-tracing-workaround-no-file-program.yml
@@ -48,7 +48,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - name: Remove `file` program
         run: |
diff --git a/.github/workflows/__go-indirect-tracing-workaround.yml b/.github/workflows/__go-indirect-tracing-workaround.yml
index c47bc56b9..506f6121f 100644
--- a/.github/workflows/__go-indirect-tracing-workaround.yml
+++ b/.github/workflows/__go-indirect-tracing-workaround.yml
@@ -48,7 +48,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         with:
diff --git a/.github/workflows/__go-tracing-autobuilder.yml b/.github/workflows/__go-tracing-autobuilder.yml
index 85a9fae07..a771ea5a6 100644
--- a/.github/workflows/__go-tracing-autobuilder.yml
+++ b/.github/workflows/__go-tracing-autobuilder.yml
@@ -78,7 +78,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         with:
diff --git a/.github/workflows/__go-tracing-custom-build-steps.yml b/.github/workflows/__go-tracing-custom-build-steps.yml
index 02f1e1dac..e1364e9b1 100644
--- a/.github/workflows/__go-tracing-custom-build-steps.yml
+++ b/.github/workflows/__go-tracing-custom-build-steps.yml
@@ -78,7 +78,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         with:
diff --git a/.github/workflows/__go-tracing-legacy-workflow.yml b/.github/workflows/__go-tracing-legacy-workflow.yml
index b6049c158..091a61409 100644
--- a/.github/workflows/__go-tracing-legacy-workflow.yml
+++ b/.github/workflows/__go-tracing-legacy-workflow.yml
@@ -78,7 +78,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         with:
diff --git a/.github/workflows/__multi-language-autodetect.yml b/.github/workflows/__multi-language-autodetect.yml
index 2d8c93417..2f6a1888e 100644
--- a/.github/workflows/__multi-language-autodetect.yml
+++ b/.github/workflows/__multi-language-autodetect.yml
@@ -78,7 +78,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         id: init
diff --git a/.github/workflows/__packaging-codescanning-config-inputs-js.yml b/.github/workflows/__packaging-codescanning-config-inputs-js.yml
index 0106bbdbf..3a4191894 100644
--- a/.github/workflows/__packaging-codescanning-config-inputs-js.yml
+++ b/.github/workflows/__packaging-codescanning-config-inputs-js.yml
@@ -64,7 +64,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         with:
diff --git a/.github/workflows/__packaging-config-inputs-js.yml b/.github/workflows/__packaging-config-inputs-js.yml
index 248880770..f5bb52324 100644
--- a/.github/workflows/__packaging-config-inputs-js.yml
+++ b/.github/workflows/__packaging-config-inputs-js.yml
@@ -64,7 +64,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         with:
diff --git a/.github/workflows/__packaging-config-js.yml b/.github/workflows/__packaging-config-js.yml
index 620406f77..6610e8687 100644
--- a/.github/workflows/__packaging-config-js.yml
+++ b/.github/workflows/__packaging-config-js.yml
@@ -64,7 +64,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         with:
diff --git a/.github/workflows/__packaging-inputs-js.yml b/.github/workflows/__packaging-inputs-js.yml
index 3c467484d..bf2c2f7dc 100644
--- a/.github/workflows/__packaging-inputs-js.yml
+++ b/.github/workflows/__packaging-inputs-js.yml
@@ -64,7 +64,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         with:
diff --git a/.github/workflows/__remote-config.yml b/.github/workflows/__remote-config.yml
index 6041b0fb4..70ad5dab6 100644
--- a/.github/workflows/__remote-config.yml
+++ b/.github/workflows/__remote-config.yml
@@ -50,7 +50,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         with:
diff --git a/.github/workflows/__split-workflow.yml b/.github/workflows/__split-workflow.yml
index fe7f0dad6..42a765024 100644
--- a/.github/workflows/__split-workflow.yml
+++ b/.github/workflows/__split-workflow.yml
@@ -58,7 +58,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         with:
diff --git a/.github/workflows/__swift-custom-build.yml b/.github/workflows/__swift-custom-build.yml
index b2ee00c49..4372e518a 100644
--- a/.github/workflows/__swift-custom-build.yml
+++ b/.github/workflows/__swift-custom-build.yml
@@ -52,7 +52,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         id: init
diff --git a/.github/workflows/__test-local-codeql.yml b/.github/workflows/__test-local-codeql.yml
index 3f565ca62..943ad7ef9 100644
--- a/.github/workflows/__test-local-codeql.yml
+++ b/.github/workflows/__test-local-codeql.yml
@@ -48,7 +48,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - name: Fetch a CodeQL bundle
         shell: bash
diff --git a/.github/workflows/__unset-environment.yml b/.github/workflows/__unset-environment.yml
index 2464da7ae..3e7ff7d20 100644
--- a/.github/workflows/__unset-environment.yml
+++ b/.github/workflows/__unset-environment.yml
@@ -50,7 +50,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         id: init
diff --git a/.github/workflows/__upload-ref-sha-input.yml b/.github/workflows/__upload-ref-sha-input.yml
index e7ec0542b..60afa9f47 100644
--- a/.github/workflows/__upload-ref-sha-input.yml
+++ b/.github/workflows/__upload-ref-sha-input.yml
@@ -52,7 +52,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - uses: ./../action/init
         with:
diff --git a/.github/workflows/__with-checkout-path.yml b/.github/workflows/__with-checkout-path.yml
index 3be22ef2b..26bc7d80f 100644
--- a/.github/workflows/__with-checkout-path.yml
+++ b/.github/workflows/__with-checkout-path.yml
@@ -52,7 +52,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.21.0'
+          go-version: 1.25.0-rc.1
           cache: false
       - name: Delete original checkout
         shell: bash
diff --git a/pr-checks/sync.py b/pr-checks/sync.py
index c8a2ff196..0d71f7bba 100755
--- a/pr-checks/sync.py
+++ b/pr-checks/sync.py
@@ -117,7 +117,7 @@ for file in (this_dir / 'checks').glob('*.yml'):
             'name': 'Install Go',
             'uses': 'actions/setup-go@v5',
             'with': {
-                'go-version': '>=1.21.0',
+                'go-version': '1.25.0-rc.1',
                 # to avoid potentially misleading autobuilder results where we expect it to download
                 # dependencies successfully, but they actually come from a warm cache
                 'cache': False