diff --git a/.github/workflows/build-client.yml b/.github/workflows/build-client.yml
index 7d114fbe..bbe90d89 100644
--- a/.github/workflows/build-client.yml
+++ b/.github/workflows/build-client.yml
@@ -31,6 +31,8 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: ${{ env.node-version }}
+          cache: npm
+          cache-dependency-path: client/package-lock.json
 
       - name: Install
         run: npm ci
@@ -55,9 +57,14 @@ jobs:
 
   test:
     runs-on: ubuntu-latest
+    needs:
+      - translations
     defaults:
       run:
         working-directory: client
+    permissions:
+      contents: write       # For commiting changes back to the current PR.
+      pull-requests: write  # For commenting on the PR.
     steps:
       - uses: actions/checkout@v4
 
@@ -65,12 +72,50 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: ${{ env.node-version }}
+          cache: npm
+          cache-dependency-path: client/package-lock.json
 
       - name: Install
         run: npm ci
 
+      # We want to know if this branch has changed the english strings, not
+      # just if the `translations` job had to update it, so we need this check.
+      - uses: dorny/paths-filter@v3
+        id: changes
+        with:
+          filters: |
+            english:
+              - client/src/i18n/en.json
+
       - name: Unit tests
-        run: npm test
+        env:
+          update_snapshots: ${{ github.event_name == 'pull_request' && steps.changes.outputs.english == 'true' }}
+        run: |
+          if [ "${update_snapshots}" == 'true' ]; then
+            npm run test:update
+          else
+            npm test
+          fi
+
+      - name: Commit changes to Snapshots
+        uses: stefanzweifel/git-auto-commit-action@v5
+        id: commit
+        if: github.event_name == 'pull_request'
+        with:
+          commit_message: 'Auto-update snapshot tests'
+          file_pattern: '*.snap'
+
+      - name: Comment on the PR about changes
+        uses: thollander/actions-comment-pull-request@v3
+        if: steps.commit.outputs.changes_detected == 'true'
+        env:
+          commit_url: 'https://github.com/${{ github.repository }}/commit/${{ steps.commit.outputs.commit_hash }}'
+        with:
+          message: >
+            🚨 The "snapshot" tests in your PR have been automatically updated
+            because you changed some text in the app! **Make sure [the changes
+            to `.snap` files](${{ env.commit_url }}) are correct** and don’t
+            include other things that should *not* have changed.
 
   lint:
     runs-on: ubuntu-latest
@@ -84,6 +129,8 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: ${{ env.node-version }}
+          cache: npm
+          cache-dependency-path: client/package-lock.json
 
       - name: Install
         run: npm ci
@@ -116,6 +163,8 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: ${{ env.node-version }}
+          cache: npm
+          cache-dependency-path: client/package-lock.json
 
       - name: Install
         run: npm ci
@@ -124,14 +173,16 @@ jobs:
         if: github.event_name == 'pull_request'
         run: npm run intl:extract
 
-      - uses: stefanzweifel/git-auto-commit-action@v5
+      - name: Commit changes to English strings
+        uses: stefanzweifel/git-auto-commit-action@v5
         id: commit-strings
         if: github.event_name == 'pull_request'
         with:
           commit_message: 'Auto-update en.json from component source code'
           file_pattern: 'client/src/intl/en.json'
 
-      - uses: thollander/actions-comment-pull-request@v3
+      - name: Comment on the PR about changes
+        uses: thollander/actions-comment-pull-request@v3
         if: steps.commit-strings.outputs.changes_detected == 'true'
         with:
           message: >
diff --git a/client/src/data/copy/common.tsx b/client/src/data/copy/common.tsx
index 5633b92a..a139d181 100644
--- a/client/src/data/copy/common.tsx
+++ b/client/src/data/copy/common.tsx
@@ -56,7 +56,7 @@ export const UPDATE_BANNER_CONTENT_LARGE = <FormattedMessage
 
 export const UPDATE_BANNER_CONTENT_SMALL = <FormattedMessage
   id={'common.pages.alerts.banner.update.content.small'}
-  defaultMessage={`<bold>This is an unofficial copy of the CEJST Tool.</bold>  We are working on an overhaul, but in the meantime some links and text may incorrectly suggest that this site is affiliated with the US Government.`}
+  defaultMessage={`<bold>This is an unofficial copy of the CEJST Tool!!!!</bold>  We are working on an overhaul, but in the meantime some links and text may incorrectly suggest that this site is affiliated with the US Government.`}
   description={`Alert body that appears at the top of pages.`}
   values={{
     bold: boldFn,