diff --git a/.github/actions/benchexec-report/action.yml b/.github/actions/benchexec-report/action.yml
index 2fc30c965c..ea031af136 100644
--- a/.github/actions/benchexec-report/action.yml
+++ b/.github/actions/benchexec-report/action.yml
@@ -48,7 +48,7 @@ runs:
             then printf "\n| $task | " >> $GITHUB_OUTPUT
             fi
             lasttask="$task"
-            printf " $emoji ($correct / $incorrect / $all) [HTML](https://theta.mit.bme.hu/benchmark-results/${{ github.head_ref }}/$i/$(ls *.html))/[CSV](https://theta.mit.bme.hu/benchmark-results/${{ github.head_ref }}/$i/$(ls *.csv)) | " >> $GITHUB_OUTPUT
+            printf " $emoji ($correct / $incorrect / $all) [HTML](https://theta.mit.bme.hu/benchmark-results/${{ github.ref }}/$i/$(ls *.html))/[CSV](https://theta.mit.bme.hu/benchmark-results/${{ github.ref }}/$i/$(ls *.csv)) | " >> $GITHUB_OUTPUT
             popd
           else
             rm -rf $i
@@ -68,7 +68,7 @@ runs:
       with:
         branch: gh-pages
         folder: artifacts
-        target-folder: benchmark-results/${{ github.head_ref }}/
+        target-folder: benchmark-results/${{ github.ref }}/
         single-commit: true
     - name: Comment on PR
       if: github.event_name == 'pull_request'
diff --git a/.github/workflows/check-copyright.yml b/.github/workflows/check-copyright.yml
index c441a8d667..7eb1f23215 100644
--- a/.github/workflows/check-copyright.yml
+++ b/.github/workflows/check-copyright.yml
@@ -7,7 +7,7 @@ on:
 permissions: write-all
 
 concurrency: 
-  group: copyright-${{ github.head_ref }}
+  group: copyright-${{ github.ref }}
   cancel-in-progress: true
 
 jobs:
@@ -17,4 +17,21 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
       - name: Check copyright
-        uses: ./.github/actions/check-copyright
\ No newline at end of file
+        uses: ./.github/actions/check-copyright
+      - name: Comment
+        if: failure() && github.event_name == 'pull_request'
+        uses: thollander/actions-comment-pull-request@dadb7667129e23f12ca3925c90dc5cd7121ab57e
+        continue-on-error: true # if we are in a fork, this will fail, but we don't care (tables will be missing)
+        with: 
+          comment_tag: 'copyright'
+          mode: 'recreate'
+          message: |
+            :exclamation: Please run `./gradlew spotlessApply` on your branch to fix copyright headers.
+
+      - name: Delete Comment
+        if: github.event_name == 'pull_request'
+        uses: thollander/actions-comment-pull-request@dadb7667129e23f12ca3925c90dc5cd7121ab57e
+        continue-on-error: true # if we are in a fork, this will fail, but we don't care (tables will be missing)
+        with: 
+          comment_tag: 'copyright'
+          mode: 'delete'
\ No newline at end of file
diff --git a/.github/workflows/check-formatting.yml b/.github/workflows/check-formatting.yml
index 213bdcb52d..02647f3a04 100644
--- a/.github/workflows/check-formatting.yml
+++ b/.github/workflows/check-formatting.yml
@@ -7,7 +7,7 @@ on:
 permissions: write-all
 
 concurrency: 
-  group: formatting-${{ github.head_ref }}
+  group: formatting-${{ github.ref }}
   cancel-in-progress: true
 
 jobs:
@@ -16,5 +16,27 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+      - name: Setup java 17
+        uses: actions/setup-java@5ffc13f4174014e2d4d4572b3d74c3fa61aeb2c2 # v3.11.0
+        with:
+          distribution: temurin
+          java-version: 17
       - name: Checking formatting
-        uses: ./.github/actions/check-formatting
\ No newline at end of file
+        uses: ./.github/actions/check-formatting
+      - name: Comment
+        if: failure() && github.event_name == 'pull_request'
+        uses: thollander/actions-comment-pull-request@dadb7667129e23f12ca3925c90dc5cd7121ab57e
+        continue-on-error: true # if we are in a fork, this will fail, but we don't care (tables will be missing)
+        with: 
+          comment_tag: 'reformat'
+          mode: 'recreate'
+          message: |
+            :exclamation: Please run `./gradlew spotlessApply` on your branch to fix formatting.
+
+      - name: Delete Comment
+        if: github.event_name == 'pull_request'
+        uses: thollander/actions-comment-pull-request@dadb7667129e23f12ca3925c90dc5cd7121ab57e
+        continue-on-error: true # if we are in a fork, this will fail, but we don't care (tables will be missing)
+        with: 
+          comment_tag: 'reformat'
+          mode: 'delete'
\ No newline at end of file
diff --git a/.github/workflows/check-version.yml b/.github/workflows/check-version.yml
index 343ed50f53..83cbf94600 100644
--- a/.github/workflows/check-version.yml
+++ b/.github/workflows/check-version.yml
@@ -4,7 +4,7 @@ on:
     types: [opened, synchronize, reopened]
 
 concurrency: 
-  group: version-${{ github.head_ref }}
+  group: version-${{ github.ref }}
   cancel-in-progress: true
 
 jobs:
@@ -35,4 +35,21 @@ jobs:
         if: ${{ steps.new_version.outputs.version == steps.master_version.outputs.version }}
         run: |
           echo "New version ${{ steps.new_version.outputs.version }} is NOT OK"
-          exit 1
\ No newline at end of file
+          exit 1
+      - name: Comment
+        if: failure() && github.event_name == 'pull_request'
+        uses: thollander/actions-comment-pull-request@dadb7667129e23f12ca3925c90dc5cd7121ab57e
+        continue-on-error: true # if we are in a fork, this will fail, but we don't care (tables will be missing)
+        with: 
+          comment_tag: 'version'
+          mode: 'recreate'
+          message: |
+            :exclamation: Please modify `build.gradle.kts` to contain a later version than ${{ steps.master_version.outputs.version }}. Current version is ${{ steps.new_version.outputs.version }}.
+
+      - name: Delete Comment
+        if: github.event_name == 'pull_request'
+        uses: thollander/actions-comment-pull-request@dadb7667129e23f12ca3925c90dc5cd7121ab57e
+        continue-on-error: true # if we are in a fork, this will fail, but we don't care (tables will be missing)
+        with: 
+          comment_tag: 'version'
+          mode: 'delete'
\ No newline at end of file
diff --git a/.github/workflows/linux-build-test-deploy.yml b/.github/workflows/linux-build-test-deploy.yml
index 6d5b209e16..4c101aca95 100644
--- a/.github/workflows/linux-build-test-deploy.yml
+++ b/.github/workflows/linux-build-test-deploy.yml
@@ -13,7 +13,7 @@ on:
 permissions: write-all
 
 concurrency: 
-  group: deploy-${{ github.head_ref }}-${{ github.event_name }}
+  group: deploy-${{ github.ref }}-${{ github.event_name }}
   cancel-in-progress: true
 
 jobs:
diff --git a/.github/workflows/mac-build-test.yml b/.github/workflows/mac-build-test.yml
index 4a0f2183b0..71994579a5 100644
--- a/.github/workflows/mac-build-test.yml
+++ b/.github/workflows/mac-build-test.yml
@@ -7,7 +7,7 @@ on:
 permissions: write-all
 
 concurrency: 
-  group: mac-${{ github.head_ref }}
+  group: mac-${{ github.ref }}
   cancel-in-progress: true
 
 jobs:
diff --git a/.github/workflows/sonar.yml b/.github/workflows/sonar.yml
index c291bdc97c..c66a14c329 100644
--- a/.github/workflows/sonar.yml
+++ b/.github/workflows/sonar.yml
@@ -8,7 +8,7 @@ on:
 permissions: read-all
 
 concurrency: 
-  group: sonar-${{ github.head_ref }}
+  group: sonar-${{ github.ref }}
   cancel-in-progress: true
 
 jobs:
diff --git a/.github/workflows/win-build-test.yml b/.github/workflows/win-build-test.yml
index 1288984285..7fc33a46f5 100644
--- a/.github/workflows/win-build-test.yml
+++ b/.github/workflows/win-build-test.yml
@@ -7,7 +7,7 @@ on:
 permissions: write-all
 
 concurrency: 
-  group: win-${{ github.head_ref }}
+  group: win-${{ github.ref }}
   cancel-in-progress: true
 
 jobs:
diff --git a/build.gradle.kts b/build.gradle.kts
index 4316bed633..b76fd9f7ff 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -29,7 +29,7 @@ buildscript {
 
 allprojects {
     group = "hu.bme.mit.theta"
-    version = "6.6.2"
+    version = "6.6.3"
 
     apply(from = rootDir.resolve("gradle/shared-with-buildSrc/mirrors.gradle.kts"))
 }