diff --git a/.github/workflows/authors-file.yml b/.github/workflows/authors-file.yml
new file mode 100644
index 00000000000..3970aee681d
--- /dev/null
+++ b/.github/workflows/authors-file.yml
@@ -0,0 +1,39 @@
+name: AUTHORS file
+
+on:
+  pull_request: { }
+
+jobs:
+  authors-file:
+    name: AUTHORS file
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout HEAD
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Check whether ./AUTHORS is up-to-date
+        run: |
+          set -exo pipefail
+          sort -uo AUTHORS AUTHORS
+          git add AUTHORS
+          git log --format='format:%aN <%aE>' "$(
+            git merge-base "origin/$GITHUB_BASE_REF" "origin/$GITHUB_HEAD_REF"
+          )..origin/$GITHUB_HEAD_REF" >> AUTHORS
+          sort -uo AUTHORS AUTHORS
+          git diff AUTHORS >> AUTHORS.diff
+
+      - name: Complain if ./AUTHORS isn't up-to-date
+        run: |
+          if [ -s AUTHORS.diff ]; then
+            cat <<'EOF' >&2
+          There are the following new authors. If the commit author data is correct,
+          either add them to the AUTHORS file or update .mailmap. See gitmailmap(5) or:
+          https://git-scm.com/docs/gitmailmap
+          Don't hesitate to ask us for help if necessary.
+          EOF
+            cat AUTHORS.diff
+            exit 1
+          fi
diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index d4883b5d0c9..dc23459e04e 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -11,7 +11,7 @@ on:
       - published
 
 concurrency:
-  group: docker-${{ github.ref }}
+  group: docker-${{ github.event_name == 'push' && github.sha || github.ref }}
   cancel-in-progress: true
 
 jobs:
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index be238b170c9..6c3c5dd6ec3 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -8,7 +8,7 @@ on:
   pull_request: {}
 
 concurrency:
-  group: linux-${{ github.ref }}
+  group: linux-${{ github.event_name == 'push' && github.sha || github.ref }}
   cancel-in-progress: true
 
 jobs:
@@ -27,9 +27,9 @@ jobs:
           - debian:10
           - debian:11 # and Raspbian 11
           - debian:12 # and Raspbian 12
-          - fedora:36
           - fedora:37
           - fedora:38
+          - fedora:39
           - opensuse/leap:15.3 # SLES 15.3
           - opensuse/leap:15.4 # and SLES 15.4
           - opensuse/leap:15.5 # and SLES 15.5
@@ -37,8 +37,8 @@ jobs:
           - rockylinux:9 # RHEL 9
           - ubuntu:20.04
           - ubuntu:22.04
-          - ubuntu:22.10
           - ubuntu:23.04
+          - ubuntu:23.10
 
     steps:
       - name: Checkout HEAD
diff --git a/.github/workflows/rpm.yml b/.github/workflows/rpm.yml
index 13022168e56..5cf8b10b068 100644
--- a/.github/workflows/rpm.yml
+++ b/.github/workflows/rpm.yml
@@ -8,7 +8,7 @@ on:
   pull_request: {}
 
 concurrency:
-  group: rpm-${{ github.ref }}
+  group: rpm-${{ github.event_name == 'push' && github.sha || github.ref }}
   cancel-in-progress: true
 
 jobs:
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 52a08fce8e8..18d8e5757b2 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -8,7 +8,7 @@ on:
   pull_request: {}
 
 concurrency:
-  group: windows-${{ github.ref }}
+  group: windows-${{ github.event_name == 'push' && github.sha || github.ref }}
   cancel-in-progress: true
 
 jobs:
diff --git a/AUTHORS b/AUTHORS
index c148358e434..790a847528b 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -149,6 +149,7 @@ Lennart Betz <lennart.betz@icinga.com>
 Leon Stringer <leon@priorsvle.com>
 lihan <tclh123@gmail.com>
 log1-c <24474580+log1-c@users.noreply.github.com>
+Lord Hepipud <contact@lordhepipud.de>
 Lorenz Kästle <lorenz.kaestle@netways.de>
 Louis Sautier <sautier.louis@gmail.com>
 Luca Lesinigo <luca@lm-net.it>
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index ced22a354f7..cec52657957 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -111,6 +111,12 @@ refs #1234
 You can add multiple commits during your journey to finish your patch.
 Don't worry, you can squash those changes into a single commit later on.
 
+Ensure your name and email address in the commit metadata are correct.
+In your first contribution (PR) also add them to [AUTHORS](./AUTHORS).
+If those metadata changed since your last successful contribution,
+you should update [AUTHORS](./AUTHORS) and [.mailmap](./.mailmap).
+For the latter see [gitmailmap(5)](https://git-scm.com/docs/gitmailmap).
+
 ## <a id="contributing-pull-requests"></a> Pull Requests
 
 Once you've commited your changes, please update your local master
diff --git a/doc/win-dev.ps1 b/doc/win-dev.ps1
index 0789311824a..3c0427d95c2 100644
--- a/doc/win-dev.ps1
+++ b/doc/win-dev.ps1
@@ -91,6 +91,8 @@ if (-not $Env:GITHUB_ACTIONS) {
     ThrowOnNativeFailure
 }
 
+# Disable the progress bar for downloads from the Web, which will speed up the entire download process
+$Global:ProgressPreference = 'SilentlyContinue';
 
 Install-Exe -Url "https://packages.icinga.com/windows/dependencies/boost_$($BoostVersion -join '_')-msvc-${MsvcVersion}-${Env:BITS}.exe" -Dir "C:\local\boost_$($BoostVersion -join '_')-Win${Env:BITS}"