diff --git a/.github/workflows/00-linux.yml b/.github/workflows/00-linux.yml
index 596765dc..df32b12d 100644
--- a/.github/workflows/00-linux.yml
+++ b/.github/workflows/00-linux.yml
@@ -15,12 +15,6 @@ jobs:
       os: 'ubuntu-latest'
       toolchain: 'stable'
 
-  linux-build-and-test-beta:
-    uses: './.github/workflows/01-build-and-test-unix.yml'
-    with:
-      os: 'ubuntu-latest'
-      toolchain: 'beta'
-
   linux-build-and-test-msrv:
     uses: './.github/workflows/01-build-and-test-unix.yml'
     with:
@@ -28,13 +22,6 @@ jobs:
       toolchain: '1.63'
       msrv: true
 
-  # Nightly check is performed on ubuntu only.
-  linux-build-and-test-nightly:
-    uses: './.github/workflows/01-build-and-test-unix.yml'
-    with:
-      os: 'ubuntu-latest'
-      toolchain: 'nightly'
-
   linux-coverage-stable:
     uses: './.github/workflows/02-coverage.yml'
     with:
diff --git a/.github/workflows/00-macos.yml b/.github/workflows/00-macos.yml
index b3f378c1..c7d18478 100644
--- a/.github/workflows/00-macos.yml
+++ b/.github/workflows/00-macos.yml
@@ -15,12 +15,6 @@ jobs:
       os: 'macos-latest'
       toolchain: 'stable'
 
-  macos-build-and-test-beta:
-    uses: './.github/workflows/01-build-and-test-unix.yml'
-    with:
-      os: 'macos-latest'
-      toolchain: 'beta'
-
   macos-build-and-test-msrv:
     uses: './.github/workflows/01-build-and-test-unix.yml'
     with:
diff --git a/.github/workflows/00-windows.yml b/.github/workflows/00-windows.yml
index 8908ccbc..2eaf1026 100644
--- a/.github/workflows/00-windows.yml
+++ b/.github/workflows/00-windows.yml
@@ -18,15 +18,6 @@ jobs:
       NPCAP_OEM_PASSWORD: ${{ secrets.NPCAP_OEM_PASSWORD }}
       NPCAP_OEM_USERNAME: ${{ secrets.NPCAP_OEM_USERNAME }}
 
-  windows-build-and-test-beta:
-    uses: './.github/workflows/01-build-and-test-windows.yml'
-    with:
-      os: 'windows-latest'
-      toolchain: 'beta'
-    secrets:
-      NPCAP_OEM_PASSWORD: ${{ secrets.NPCAP_OEM_PASSWORD }}
-      NPCAP_OEM_USERNAME: ${{ secrets.NPCAP_OEM_USERNAME }}
-
   windows-build-and-test-msrv:
     uses: './.github/workflows/01-build-and-test-windows.yml'
     with: