diff --git a/.github/workflows/presubmit.yml b/.github/workflows/presubmit.yml
index 73842d3c..a58fc84d 100644
--- a/.github/workflows/presubmit.yml
+++ b/.github/workflows/presubmit.yml
@@ -5,8 +5,29 @@ on:
   workflow_dispatch:
 
 jobs:
+  check-formatting:
+    runs-on: ubuntu-latest
+    name: Check Formatting
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: actions/setup-node@v6
+        with:
+          node-version: ${{ vars.NODE_VERSION }}
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run prettier
+        run: npm run format:check
+
   build-and-test:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        jj_version: ['v0.37.0', 'v0.42.0']
+    name: Build and Test (jj ${{ matrix.jj_version }})
     steps:
       - uses: actions/checkout@v6
 
@@ -19,9 +40,9 @@ jobs:
           node-version: ${{ vars.NODE_VERSION }}
           cache: 'npm'
 
-      - name: Install jj (Jujutsu)
+      - name: Install jj ${{ matrix.jj_version }} (Jujutsu)
         run: |
-          curl -L https://github.com/jj-vcs/jj/releases/download/v0.37.0/jj-v0.37.0-x86_64-unknown-linux-musl.tar.gz -o jj.tar.gz
+          curl -L https://github.com/jj-vcs/jj/releases/download/${{ matrix.jj_version }}/jj-${{ matrix.jj_version }}-x86_64-unknown-linux-musl.tar.gz -o jj.tar.gz
           tar -xzf jj.tar.gz
           sudo mv jj /usr/local/bin/
           rm jj.tar.gz  # Clean up large file before jj init
@@ -40,3 +61,10 @@ jobs:
         run: |
           Xvfb :99 -screen 0 1280x1024x24 &
           npm test
+
+  presubmit-ok:
+    runs-on: ubuntu-latest
+    needs: [check-formatting, build-and-test]
+    if: always()
+    steps:
+      - run: ${{!contains(needs.*.result, 'failure')}}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0846d325..e2476b6c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,10 +2,10 @@
 
 ## 0.0.12
 
-* adds compact mode by @sesceu in https://github.com/sbarfurth/ukemi/pull/51
-* bugfix: ensure @ is shown even on repos without additional workspaces. by @sesceu in https://github.com/sbarfurth/ukemi/pull/52
-* Use --no-integrate-operation on background queries. by @sbarfurth in https://github.com/sbarfurth/ukemi/pull/55
-* Allow copying file paths in SCM view. by @sbarfurth in https://github.com/sbarfurth/ukemi/pull/58
+- adds compact mode by @sesceu in https://github.com/sbarfurth/ukemi/pull/51
+- bugfix: ensure @ is shown even on repos without additional workspaces. by @sesceu in https://github.com/sbarfurth/ukemi/pull/52
+- Use --no-integrate-operation on background queries. by @sbarfurth in https://github.com/sbarfurth/ukemi/pull/55
+- Allow copying file paths in SCM view. by @sbarfurth in https://github.com/sbarfurth/ukemi/pull/58
 
 **Full Changelog**: https://github.com/sbarfurth/ukemi/compare/0.0.11...0.0.12
 
diff --git a/package.json b/package.json
index 0aca328e..821a16f3 100644
--- a/package.json
+++ b/package.json
@@ -754,7 +754,8 @@
     "check-types": "tsc --noEmit",
     "lint": "eslint src",
     "test": "node out/test/run_test.js",
-    "format": "prettier --write ."
+    "format": "prettier --write .",
+    "format:check": "prettier --check ."
   },
   "devDependencies": {
     "@eslint/js": "10.0.1",
diff --git a/src/jj/repository.ts b/src/jj/repository.ts
index e53a326a..d0425315 100644
--- a/src/jj/repository.ts
+++ b/src/jj/repository.ts
@@ -1001,12 +1001,17 @@ export class JJRepository {
   }
 
   async operationLog(): Promise<Operation[]> {
+    // The `tags()` function was deprecated in 0.41.0.
+    const attributesField = this.jjVersion.isAtLeast(SemVer.parse('0.41.0'))
+      ? 'self.attributes()'
+      : 'self.tags()';
+
     const operationSeparator = '__ඞඞ__\n';
     const fieldSeparator = '__ඞ__';
     const templateFields = [
       'self.id()',
       'self.description()',
-      'self.attributes()',
+      attributesField,
       'self.time().start()',
       'self.user()',
       'self.snapshot()',
@@ -1071,7 +1076,7 @@ export class JJRepository {
           case 'self.description()':
             op.description = value;
             break;
-          case 'self.attributes()':
+          case attributesField:
             op.tags = value;
             break;
           case 'self.time().start()':
diff --git a/src/test/run_test.ts b/src/test/run_test.ts
index 4d0d6d7a..95f5d89b 100644
--- a/src/test/run_test.ts
+++ b/src/test/run_test.ts
@@ -33,10 +33,10 @@ async function main() {
       cwd: testRepoPath,
     });
     // The initial `jj git init` created an implicit new commit on top of the
-    // root commit (0). This will have the system git author information since
-    // we configured the author after. We can recreate on top of root to apply
-    // the author config from above.
-    await execJJPromise(`new 0`, {
+    // root commit (0000...). This will have the system git author information
+    // since we configured the author after. We can recreate on top of root to
+    // apply the author config from above.
+    await execJJPromise(`new 0000`, {
       cwd: testRepoPath,
     });