chore: version packages (#947)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

CHANGELOG.md

@@ -1,5 +1,25 @@
 # agent-browser
 
+## 0.21.3
+
+### Patch Changes
+
+- 6daad22: ### Bug Fixes
+
+  - **WebSocket keepalive for remote browsers** - Added WebSocket Ping frames and TCP `SO_KEEPALIVE` to prevent CDP connections from being silently dropped by intermediate proxies (reverse proxies, load balancers, service meshes) during idle periods (#936)
+  - **XPath selector support** - Fixed element resolution to correctly handle the `xpath=` selector prefix (#908)
+
+  ### Performance
+
+  - **Fast-path for identical snapshots** - Short-circuits the Myers diff algorithm when comparing a snapshot to itself, avoiding unnecessary computation in retry and loop workloads where repeated identical snapshots are common (#922)
+
+  ### Documentation
+
+  - Migrated page metadata from MDX files to `layout.tsx` (#904)
+  - Added search functionality and color improvements to docs (#927)
+  - Fixed desktop browser list in the iOS comparison table (#926)
+  - Created a new `providers/` section with dedicated provider pages (#928)
+
 ## 0.21.2
 
 ### Patch Changes