Patch 6.2.4 (undocumented changes)

This article lists all undocumented changes for patch 6.2.4. All documented changes should be listed on the main article.

Achievements

 * A new achievement criteria was added labeled "H20 - Promo". This turned out to be for Fledgling Hero of Warcraft, which was pushed to live in a hotfix prior to the release of Patch 6.2.4 itself.

User Interface

 * Mythic has been added to the Group Finder.
 * Timewalker difficulty has been renamed to Timewalking.
 * Support for Battle.net Conversations was removed, as well as the function in its entirety.
 * The main login screen now also displays a list field for WoW accounts beneath the Battle.net Account Name field.