New user location added to taxonomy classifications, so a taxonomy can now be enabled for the user entity (accepted in enabled_locations on POST/PUT /v1/entity/taxonomies, POST /v1/entity/taxonomies/{taxonomySlug}/classifications, and the v2 classification endpoints)
New optional source_context object added to activity-log operations (GET /v1/entity/activity/{id} and GET /v1/entity/{slug}/{id}/activity), reporting the origin and actor behind each change (source, source_label, source_system, source_reference, actor_type, actor_id, effective_at)