​The Dev channel has been updated to 5.0.342.1 for Windows, Mac, and Linux platforms and 5.0.342.0 ChromeFrame
​
All

• Extension content scripts no longer run multiple times after fragment (ie #hash) navigations (Issue:35924)
• Early version of Geolocation API now available with following caveats:

1. To enable, run the browser with --enable-geolocation
2. Wifi based location is only supported on Windows and Mac (not OSX 10.6 for now)
3. Permissions are not persisted (will re-prompt every time) and associated UI is incomplete.

Mac

• Improved plugin stability (Issue:35081,36928)
• AutoFill Preferences UI Updates
• Translate infobars are now implemented (Issue:34466)
• Mac History menu now has favicons andno longer lists duplicates of Recently Closed sites
  (Issues: 20464 and 21314)
• Added HTML5 databases to the Mac cookie manager (Issue: 35191)

More details about additional changes are available in the svn log of all revisions.

You can find out about getting on the Dev channel here:http://dev.chromium.org/getting-involved/dev-channel.

If you find new issues, please let us know by filing a bug at http://code.google.com/p/chromium/issues/entry