This new version of the Afloat package includes the same version of Afloat 2.0 that was previously available. It also includes PlugSuit 1.5.5, the new version of the PlugSuit plug-in manager and loader.
PlugSuit 1.5.5 fixes a bug that prevented certain third-party extenders, such as Blacktree's Vision, from working correctly. For more information, see PlugSuit's release notes.
This update is not required for all users of Afloat, but is recommended to users that also use third-party extenders with PlugSuit alongside Afloat.