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.
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.