A bunch of tinkering with ActionView internals is summarized with a doc commit at daa0ed3a. THis includes the deprecation of ActionView::RecordIdentifier and the deprecation of Template#mime_type, the latter in favor of type. The overall goal is to make it easier to extract ActionView from ActionPack in the future.
810a50da splits up the CHANGELOG so that it's separate files on separate branches.
Rails bumps its bundler dependency to 1.2 in 5f99bdbe. Time to upgrade.