Thursday, January 17, 2008

This afternoon, many blogs showed the error bX-uxu3fu for about two to three hours. This was caused by a bug in our latest release that affected highly-customized Layouts templates. We noticed the problem as soon as the release finished deploying, and worked quickly to find and fix the bug.

We apologize to the bloggers and readers of the affected blogs.

Clarification and details update, 1/18:
Yesterday afternoon, we deployed an update to Blogger including new features and bug fixes. Immediately after the update, we discovered that one of the bug fixes had introduced a new bug which blocked people from viewing a small number of blogs with certain highly-customized Layouts templates. We immediately began to deploy a fix, but viewers of the affected blogs may have seen an internal error (bX-uxu3fu) for a period of a few hours during the redeployment.

We make every effort to test changes prior to deployment. Testing against every possible customized template is impossible, so we do our best to test the most used features. Unfortunately, this one slipped through our procedures. We apologize to the affected bloggers and their readers. We're adding new test cases to our procedures to catch this and similar issues in the future.