GitHub has announced an extension of the deprecation deadline for its old GitHub Pages infrastructure to February 2, 2015, giving users more time to update their DNS records to ensure their sites remain available after December 1, 2014. The change is part of an effort to permanently transition to an improved infrastructure announced nearly a year ago. Users with custom domains pointed at legacy IPs need to update their DNS settings to avoid build errors, brownouts, and eventual discontinuation of service. Affected users will receive email notifications, and several methods are provided to check DNS configurations, including using the GitHub Pages Gem or command-line tools on various operating systems. The transition does not affect repository or Git data, and GitHub offers support for users needing assistance with the update process.