diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fd21c99..ff13308 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -555,30 +555,6 @@ jobs:
         env:
           DOCKER_BUILD_SUMMARY: false
 
-  summary-disable-deprecated:
-    runs-on: ubuntu-latest
-    steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v6
-      -
-        name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-        with:
-          version: ${{ inputs.buildx-version || env.BUILDX_VERSION }}
-          driver-opts: |
-            image=${{ inputs.buildkit-image || env.BUILDKIT_IMAGE }}
-      -
-        name: Build
-        uses: ./
-        with:
-          source: .
-          files: |
-            ./test/config.hcl
-          targets: app
-        env:
-          DOCKER_BUILD_NO_SUMMARY: true
-
   summary-not-supported:
     runs-on: ubuntu-latest
     steps:
diff --git a/src/main.ts b/src/main.ts
index f8035d6..a20b6f6 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -308,10 +308,7 @@ function buildChecksAnnotationsEnabled(): boolean {
 }
 
 function buildSummaryEnabled(): boolean {
-  if (process.env.DOCKER_BUILD_NO_SUMMARY) {
-    core.warning('DOCKER_BUILD_NO_SUMMARY is deprecated. Set DOCKER_BUILD_SUMMARY to false instead.');
-    return !Util.parseBool(process.env.DOCKER_BUILD_NO_SUMMARY);
-  } else if (process.env.DOCKER_BUILD_SUMMARY) {
+  if (process.env.DOCKER_BUILD_SUMMARY) {
     return Util.parseBool(process.env.DOCKER_BUILD_SUMMARY);
   }
   return true;
@@ -325,13 +322,7 @@ function buildRecordUploadEnabled(): boolean {
 }
 
 function buildRecordRetentionDays(): number | undefined {
-  let val: string | undefined;
-  if (process.env.DOCKER_BUILD_EXPORT_RETENTION_DAYS) {
-    core.warning('DOCKER_BUILD_EXPORT_RETENTION_DAYS is deprecated. Use DOCKER_BUILD_RECORD_RETENTION_DAYS instead.');
-    val = process.env.DOCKER_BUILD_EXPORT_RETENTION_DAYS;
-  } else if (process.env.DOCKER_BUILD_RECORD_RETENTION_DAYS) {
-    val = process.env.DOCKER_BUILD_RECORD_RETENTION_DAYS;
-  }
+  const val = process.env.DOCKER_BUILD_RECORD_RETENTION_DAYS;
   if (val) {
     const res = parseInt(val);
     if (isNaN(res)) {