Change Log# Changes in Blender’s Python API between releases. 4.3 to 4.4# bpy.types.Action# Added# bpy.types.Action.is_action_layered bpy.types.Action.is_action_legacy bpy.types.Action.is_empty bpy.types.Action.layers bpy.types.Action.slots bpy.types.ActionConstraint# Added# bpy.types.ActionConstraint.action_slot bpy.types.ActionConstraint.action_slot_handle bpy.types.ActionConstraint.action_slot_name bpy.types.ActionConstraint.action_slots bpy.types.AnimData# Added# bpy.types.AnimData.action_slot bpy.types.AnimData.action_slot_handle bpy.types.AnimData.action_slot_name bpy.types.AnimData.action_slots bpy.types.NlaStrip# Added# bpy.types.NlaStrip.action_slot bpy.types.NlaStrip.action_slot_handle bpy.types.NlaStrip.action_slot_name bpy.types.NlaStrip.action_slots