diff --git a/.github/workflows/auto_close.yml b/.github/workflows/auto_close.yml
index 3252aaed847..52748002483 100644
--- a/.github/workflows/auto_close.yml
+++ b/.github/workflows/auto_close.yml
@@ -5,7 +5,7 @@ on:
 
 jobs:
   stale:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     steps:
       - uses: actions/stale@v11
         with:
diff --git a/.github/workflows/build_fw.yml b/.github/workflows/build_fw.yml
index 513ea2f41c0..8d5385fa27a 100644
--- a/.github/workflows/build_fw.yml
+++ b/.github/workflows/build_fw.yml
@@ -20,7 +20,7 @@ on:
 jobs:
   test:
     name: Run tests
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     if: |
       github.event_name != 'pull_request' ||
       !contains(github.event.pull_request.labels.*.name, 'ci: skip-fw')
@@ -72,7 +72,7 @@ jobs:
   build:
     name: Run builds
     needs: test
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     if: |
       github.event_name != 'pull_request' ||
       !contains(github.event.pull_request.labels.*.name, 'ci: skip-fw')
@@ -133,7 +133,7 @@ jobs:
   package:
     name: Package firmwares
     needs: build
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     steps:
       - name: Compose release filename
         run: echo "artifact_name=edgetx-firmware-${GITHUB_REF##*/}" >> $GITHUB_ENV
diff --git a/.github/workflows/codegen_drift.yml b/.github/workflows/codegen_drift.yml
index 1efd3e51897..7565ff513f6 100644
--- a/.github/workflows/codegen_drift.yml
+++ b/.github/workflows/codegen_drift.yml
@@ -58,7 +58,7 @@ env:
 jobs:
   changes:
     name: Detect changed inputs
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     outputs:
       cfn: ${{ steps.filter.outputs.cfn }}
       fonts: ${{ steps.filter.outputs.fonts }}
@@ -138,7 +138,7 @@ jobs:
     name: Custom function sort order
     needs: changes
     if: needs.changes.outputs.cfn == 'true' || github.event_name == 'workflow_dispatch'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     timeout-minutes: 15
     container:
       image: ghcr.io/edgetx/edgetx-dev:latest
@@ -161,7 +161,7 @@ jobs:
     name: LVGL fonts
     needs: changes
     if: needs.changes.outputs.fonts == 'true' || github.event_name == 'workflow_dispatch'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     timeout-minutes: 30
     container:
       image: ghcr.io/edgetx/edgetx-dev:latest
@@ -184,7 +184,7 @@ jobs:
     name: YAML parsers
     needs: changes
     if: needs.changes.outputs.yaml == 'true' || github.event_name == 'workflow_dispatch'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     timeout-minutes: 30
     container:
       image: ghcr.io/edgetx/edgetx-dev:latest
@@ -207,7 +207,7 @@ jobs:
     name: Web simulator radio list
     needs: changes
     if: needs.changes.outputs.radios == 'true' || github.event_name == 'workflow_dispatch'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     timeout-minutes: 10
     container:
       image: ghcr.io/edgetx/edgetx-dev:latest
@@ -228,7 +228,7 @@ jobs:
     name: Simulator string list
     needs: changes
     if: needs.changes.outputs.simstr == 'true' || github.event_name == 'workflow_dispatch'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     timeout-minutes: 10
     container:
       image: ghcr.io/edgetx/edgetx-dev:latest
diff --git a/.github/workflows/companion.yml b/.github/workflows/companion.yml
index 47944b55cf8..9cbe26ea3a3 100644
--- a/.github/workflows/companion.yml
+++ b/.github/workflows/companion.yml
@@ -100,7 +100,7 @@ jobs:
 
   build-linux:
     name: Linux Companion
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     needs: modules
     if: |
       (inputs.target == 'all' || inputs.target == 'linux' || inputs.target == '') &&
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 920f28937a8..189e61f314b 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -24,7 +24,7 @@ permissions:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     steps:
       - uses: actions/checkout@v7
         with:
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index ec606493a97..4884125db59 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -12,7 +12,7 @@ concurrency:
 jobs:
   build:
     name: Build firmware
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     strategy:
       matrix:
         target:
@@ -73,7 +73,7 @@ jobs:
 
   deploy:
     name: Deploy release
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     needs: build
     permissions:
       contents: write
diff --git a/.github/workflows/release-drafter.yml b/.github/workflows/release-drafter.yml
index ec7d271b82a..2d44a8c4ed3 100644
--- a/.github/workflows/release-drafter.yml
+++ b/.github/workflows/release-drafter.yml
@@ -14,7 +14,7 @@ permissions:
 jobs:
   release:
     name: Create draft release
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     env:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
diff --git a/.github/workflows/sync_repos.yml b/.github/workflows/sync_repos.yml
index d35b7f61fe4..83b31e7ae62 100644
--- a/.github/workflows/sync_repos.yml
+++ b/.github/workflows/sync_repos.yml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   sync:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     steps:
       - name: Checkout
         uses: actions/checkout@v7
diff --git a/.github/workflows/validate_cmake_presets.yml b/.github/workflows/validate_cmake_presets.yml
index 5dcf56904e3..476f3f5129b 100644
--- a/.github/workflows/validate_cmake_presets.yml
+++ b/.github/workflows/validate_cmake_presets.yml
@@ -22,7 +22,7 @@ on:
 jobs:
   validate:
     name: Validate CMakePresets.json
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     steps:
       - uses: actions/checkout@v7
 
diff --git a/.github/workflows/validate_fw_json.yml b/.github/workflows/validate_fw_json.yml
index 674fca98093..bcff444632f 100644
--- a/.github/workflows/validate_fw_json.yml
+++ b/.github/workflows/validate_fw_json.yml
@@ -20,7 +20,7 @@ on:
 jobs:
   json-validate:
     name: Validate fw.json file
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     steps:
       - uses: actions/checkout@v7
 
diff --git a/.github/workflows/validate_hw_defs.yml b/.github/workflows/validate_hw_defs.yml
index c6540ba12c8..be05dac3d36 100644
--- a/.github/workflows/validate_hw_defs.yml
+++ b/.github/workflows/validate_hw_defs.yml
@@ -16,7 +16,7 @@ on:
 jobs:
   validate:
     name: Validate hw_defs
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     defaults:
       run:
         working-directory: radio/util/hw_defs
diff --git a/.github/workflows/validate_radio_macros.yml b/.github/workflows/validate_radio_macros.yml
index 46ae0669ee7..c7af3dac0c4 100644
--- a/.github/workflows/validate_radio_macros.yml
+++ b/.github/workflows/validate_radio_macros.yml
@@ -14,7 +14,7 @@ on:
 jobs:
   validate:
     name: Radio macros
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     steps:
       - name: Check out the repo
         uses: actions/checkout@v7