diff --git a/.github/maven-release/README.md b/.github/maven-release/README.md
index 79d7cc2..43820f8 100644
--- a/.github/maven-release/README.md
+++ b/.github/maven-release/README.md
@@ -13,7 +13,10 @@ If CurseForge has accepted the file but it isn't public yet, wait for approval.
 Start a new run with the recorded CurseForge file ID so it verifies that upload
 without submitting the jar again. The release workflow sets Java 8 through
 Minecraft 1.16.5, Java 16 for Minecraft 1.17.1, and Java 17 for Minecraft 1.18.2
-through 1.20.1, and Java 21 for Minecraft 1.20.6 and 1.21.1.
+through 1.20.1, and Java 21 for Minecraft 1.20.6, 1.21.1 and 1.21.11.
+
+The GitHub release targets the exact version-branch source recorded in
+`releases.json`, not the publication workflow's default branch.
 
 Before publishing, check that basePower and Base Metals have public files
 before publishing. Use the release's required dependency relations on CurseForge.
diff --git a/.github/maven-release/releases.json b/.github/maven-release/releases.json
index e49406a..8041570 100644
--- a/.github/maven-release/releases.json
+++ b/.github/maven-release/releases.json
@@ -106,6 +106,15 @@
       "archiveSha256": "7b7ddfc9d22def525aee024cce64a8863947c3ae0e061338d51beaaecbf0e2fd",
       "mainSha256": "ea305b9060bc2a84021c7299249aa79aa593ea8a37665c18d0b3483902f1046a"
     },
+    "2.2.16.121111": {
+      "branch": "master-1.21.11",
+      "commit": "ce1601aa6c9f13649ac8ee0b05c4d6c01ef7406e",
+      "tag": "2.2.16.121111",
+      "runId": 43132026555,
+      "artifactId": 13906186442,
+      "archiveSha256": "e4cc3027ea0cb229e3d6f0ec566c352833b19b9e7cd75bb58351f3f1511cf2ab",
+      "mainSha256": "f23ddc4abb36a1c4c7a4205151fbb6ddfd25397e86909e1c0b146c4089b747e0"
+    },
     "2.2.14.120061": {
       "branch": "master-1.20.6",
       "commit": "eb48cccc52d07ce3ae9cedca49216c788c2fb735",
diff --git a/.github/workflows/deploy-release.yml b/.github/workflows/deploy-release.yml
index ff27370..dd4a373 100644
--- a/.github/workflows/deploy-release.yml
+++ b/.github/workflows/deploy-release.yml
@@ -74,7 +74,7 @@ jobs:
             1.10.2|1.12.2|1.13.2|1.14.4|1.15.2|1.16.5) java="Java 8" ;;
             1.17.1) java="Java 16" ;;
             1.18.2|1.19.4|1.20.1) java="Java 17" ;;
-            1.20.6|1.21.1) java="Java 21" ;;
+            1.20.6|1.21.1|1.21.11) java="Java 21" ;;
             *) echo "Unsupported Minecraft version for this publisher: $mc" >&2; exit 1 ;;
           esac
           echo "minecraft=$mc" >> "$GITHUB_OUTPUT"
@@ -150,6 +150,8 @@ jobs:
         run: |
           set -euo pipefail
           python3 .github/maven-release/verify.py verify "$RELEASE_VERSION" "$RELEASE_WORK" | tee -a "$GITHUB_STEP_SUMMARY"
-          gh release create "$RELEASE_VERSION" --verify-tag \
+          target=$(jq -er --arg v "$RELEASE_VERSION" '.releases[$v].commit' .github/maven-release/releases.json)
+          [[ "$target" =~ ^[0-9a-f]{40}$ ]]
+          gh release create "$RELEASE_VERSION" --verify-tag --target "$target" \
             --title "baseSteam $RELEASE_VERSION" --notes-file "$RELEASE_WORK/release-notes.txt" \
             "$RELEASE_WORK/"*.jar