The 'Skeleton' panel in the Armature properties has been renamed to 'Pose' The Armature property show_group_colors has been renamed to show_bone_colors Bone collections can be added to linked armatures via library overrides.
The Bone Layer operators (M, Shift+M) have been replaced by bone collection operators This is slightly different than before, where all selected bones were taken into account This works based on the active bone it selects all the other bones with the same color resp. The Select Grouped operator (Shift+G) can now select by bone color and by bone collection. Colors are now specified individually for each bone, replacing bone group colorsīone colors can be defined on the armature Bone collections can be named and are no longer limited to a fixed number. New bone collections replace both legacy numbered layers and bone groups.
The pose library uses the newly introduced asset shelf to make pose assets available in the 3D viewport.