diff --git a/.github/workflows/build-deb.yml b/.github/workflows/build-deb.yml
index 4206a3bceceb..94bce90a4b53 100644
--- a/.github/workflows/build-deb.yml
+++ b/.github/workflows/build-deb.yml
@@ -471,7 +471,7 @@ jobs:
           SIGNING_PRIVATE_KEY: ${{ secrets.SIGNING_PRIVATE_KEY }}
           SIGNING_PRIVATE_PASSPHRASE: ${{ secrets.SIGNING_PRIVATE_PASSPHRASE }}
           SIGNING_KEY_ID: ${{ secrets.SIGNING_KEY_ID }}
-        run: ./omnibus/package-scripts/publish_package.sh stackstate-agent-3-test
+        run: ./omnibus/package-scripts/publish_package.sh sts-agent-prerelease
 
   generate-install-script:
     name: Generate the pre-release agent install script
@@ -494,7 +494,7 @@ jobs:
 
       - name: Render install.sh against the pre-release repositories
         env:
-          STS_AWS_TEST_BUCKET: stackstate-agent-3-test
+          STS_AWS_TEST_BUCKET: sts-agent-prerelease
           STS_AWS_TEST_BUCKET_YUM: stackstate-agent-3-rpm-test
           STS_AWS_TEST_BUCKET_WIN: stackstate-agent-3-test
         run: |
@@ -544,8 +544,8 @@ jobs:
       - name: Upload install.sh
         run: |
           set -euo pipefail
-          aws s3 cp ./install.sh s3://stackstate-agent-3-test/install.sh --acl public-read
-          aws s3 ls s3://stackstate-agent-3-test/
+          aws s3 cp ./install.sh s3://sts-agent-prerelease/install.sh --acl public-read
+          aws s3 ls s3://sts-agent-prerelease/
 
   cerberus-notify:
     name: Report failure to Slack (Cerberus)
diff --git a/README.md b/README.md
index e6fc6b7b8329..5806ca657fa5 100644
--- a/README.md
+++ b/README.md
@@ -105,15 +105,20 @@ To install the official release:
      or
     $ wget -qO- https://stackstate-agent-3.s3.amazonaws.com/install.sh | STS_API_KEY="xxx" STS_URL="yyy" bash
 
-##### Test
+##### Pre-release
 
-If you want to install a branch version use the test repository:
+If you want to install a pre-release build use the pre-release repository:
 
-    $ curl -o- https://stackstate-agent-3-test.s3.amazonaws.com/install.sh | STS_API_KEY="xxx" STS_URL="yyy" CODE_NAME="PR_NAME" bash
+    $ curl -fLo- https://sts-agent-prerelease.s3.amazonaws.com/install.sh | STS_API_KEY="xxx" STS_URL="yyy" CODE_NAME="RELEASE_BRANCH" bash
      or
-    $ wget -qO- https://stackstate-agent-3-test.s3.amazonaws.com/install.sh | STS_API_KEY="xxx" STS_URL="yyy" CODE_NAME="PR_NAME" bash
+    $ wget -qO- https://sts-agent-prerelease.s3.amazonaws.com/install.sh | STS_API_KEY="xxx" STS_URL="yyy" CODE_NAME="RELEASE_BRANCH" bash
 
-and replace `PR_NAME` with the branch name (e.g. `master`, `STAC-xxxx`).
+and replace `RELEASE_BRANCH` with the release branch name (e.g. `stackstate-7.78.2`).
+
+Only the release branch is published here: the publishing job runs on pushes to
+that branch and uses the branch name as the apt codename. Per-branch builds such
+as `master` or `STAC-xxxx` are no longer produced — historical ones remain
+readable at `https://stackstate-agent-3-test.s3.amazonaws.com`.
 
 ### Docker