diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
index 70cbaa01b..f50e40af2 100644
--- a/.github/workflows/android.yml
+++ b/.github/workflows/android.yml
@@ -2,9 +2,9 @@ name: Android CI
 
 on:
   push:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
   pull_request:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
 
 jobs:
   build:
diff --git a/.github/workflows/autotools.yml b/.github/workflows/autotools.yml
index 209882496..9a39aa84a 100644
--- a/.github/workflows/autotools.yml
+++ b/.github/workflows/autotools.yml
@@ -2,9 +2,9 @@ name: AutoTools CI
 
 on:
   push:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
   pull_request:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
 
 jobs:
   build:
diff --git a/.github/workflows/cifuzz.yml b/.github/workflows/cifuzz.yml
index c065c043b..ff0bb25f5 100644
--- a/.github/workflows/cifuzz.yml
+++ b/.github/workflows/cifuzz.yml
@@ -2,9 +2,9 @@ name: CIFuzz
 
 on:
   push:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
   pull_request:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
 
 jobs:
   Fuzzing:
diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 7c24c8ae2..a5c032314 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -2,9 +2,9 @@ name: CMake CI
 
 on:
   push:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
   pull_request:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
   schedule:
     - cron: '20 4 * * 1'
 
diff --git a/.github/workflows/format_check.yml b/.github/workflows/format_check.yml
index d2556a73c..b584c6e24 100644
--- a/.github/workflows/format_check.yml
+++ b/.github/workflows/format_check.yml
@@ -2,9 +2,9 @@ name: Code Formatting Check
 
 on:
   push:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
   pull_request:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
 
 jobs:
   format-check:
diff --git a/.github/workflows/fuzzer_build.yml b/.github/workflows/fuzzer_build.yml
index 837af8df0..3be630fb7 100644
--- a/.github/workflows/fuzzer_build.yml
+++ b/.github/workflows/fuzzer_build.yml
@@ -3,9 +3,9 @@ name: Fuzzer build check
 
 on:
   push:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
   pull_request:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
   workflow_dispatch:
 
 jobs:
diff --git a/.github/workflows/meson.yml b/.github/workflows/meson.yml
index f5232c111..2efa6e911 100644
--- a/.github/workflows/meson.yml
+++ b/.github/workflows/meson.yml
@@ -2,9 +2,9 @@ name: Meson CI
 
 on:
   push:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
   pull_request:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
   schedule:
     - cron: '20 4 * * 1'
 
diff --git a/.github/workflows/stream_list.yml b/.github/workflows/stream_list.yml
index 7af540602..c17311714 100644
--- a/.github/workflows/stream_list.yml
+++ b/.github/workflows/stream_list.yml
@@ -2,9 +2,9 @@ name: Stream List CI
 
 on:
   push:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
   pull_request:
-    branches: [ main ]
+    branches: [ 2_x_dev ]
 
 jobs:
   build: