Below are the items that will be addressed with this release. I have installed it on this site, the final version, just now.
FOR-10505 Z-Index issue for contorl panels corrected for default core skin.
FOR-10507 Fixed uninstall issues (added if exists checks).
FOR-10690 Updated manifest file and module for 5.1.1 core or greater.
FOR-10691 Removed IUpgradeable usage for custom permissions, offloaded to .dnn manifest file.
FOR-10692 Duplicated PortalSettings Class for scheduled tasks (for when no HttpContext is present)
FOR-10693 Refactored module so posting is completely abstracted and no longer dependent on HttpContext.
FOR-10694 Ratings Enable/Disable not saving issue corrected.
FOR-10698 Fixed disabling user avatar also disabled system avatar.
FOR-10699 Fixed Posting a reply problem in forums with posting restrictions.
FOR-10700 Fixed Attachment Upload Message Incomplete.
FOR-10770 Umlaut usage (Html Encoding) in Aggregate Subject corrected.
FOR-10780 Display Name not rendered properly in Post Report corrected.
FOR-10786 ACP/MCP/UCP Forum Home link moved to bottom center, removed from menu (usability reasons).
FOR-10815 Enable Role Avatar spelling errors corrected.
FOR-10816 Pool Avatar Path spelling errors corrected.
FOR-10845 Quote Post using single <div> tag corrected.
FOR-11021 Added support for external profile page.
FOR-11022 Added support for profile avatars (an image control as profile property).
FOR-11024 Added support for external member directory page.
FOR-11077 Corrected Issues found in doing forum themes (UI).
FOR-11078 Corrected SetFocus issues in PostEdit. No longer permitting subject edit on quote/reply either.