Use collection and instance terminology in Python API

This follows naming convention agreed on in T56648.

31 files changed, 190 insertions, 182 deletions

diff --git a/intern/cycles/blender/blender_object.cpp b/intern/cycles/blender/blender_object.cpp
index a57edf9b940..bcab5276060 100644
--- a/intern/cycles/blender/blender_object.cpp
+++ b/intern/cycles/blender/blender_object.cpp
@@ -506,15 +506,15 @@ Object *BlenderSync::sync_object(BL::Depsgraph& b_depsgraph,
 }
 
 static bool object_render_hide_original(BL::Object::type_enum ob_type,
-                                        BL::Object::dupli_type_enum dupli_type)
+                                        BL::Object::instance_type_enum dupli_type)
 {
 	/* metaball exception, they duplicate self */
 	if(ob_type == BL::Object::type_META)
 		return false;
 
-	return (dupli_type == BL::Object::dupli_type_VERTS ||
-	        dupli_type == BL::Object::dupli_type_FACES ||
-	        dupli_type == BL::Object::dupli_type_FRAMES);
+	return (dupli_type == BL::Object::instance_type_VERTS ||
+	        dupli_type == BL::Object::instance_type_FACES ||
+	        dupli_type == BL::Object::instance_type_FRAMES);
 }
 
 static bool object_render_hide(BL::Object& b_ob,
@@ -541,15 +541,15 @@ static bool object_render_hide(BL::Object& b_ob,
 	}
 
 	/* Both mode_PREVIEW and mode_VIEWPORT are treated the same here.*/
-	const bool show_duplicator = depsgraph_mode == BL::Depsgraph::mode_RENDER
-	                             ? b_ob.show_duplicator_for_render()
-	                             : b_ob.show_duplicator_for_viewport();
+	const bool show_instancer = depsgraph_mode == BL::Depsgraph::mode_RENDER
+	                             ? b_ob.show_instancer_for_render()
+	                             : b_ob.show_instancer_for_viewport();
 
 	if(has_particles) {
-		show_emitter = show_duplicator;
+		show_emitter = show_instancer;
 		hide_emitter = !show_emitter;
-	} else if(b_ob.is_duplicator()) {
-		if(top_level || show_duplicator) {
+	} else if(b_ob.is_instancer()) {
+		if(top_level || show_instancer) {
 			hide_as_dupli_parent = true;
 		}
 	}
@@ -558,7 +558,7 @@ static bool object_render_hide(BL::Object& b_ob,
 	BL::Object parent = b_ob.parent();
 	while(parent) {
 		if(object_render_hide_original(b_ob.type(),
-		                               parent.dupli_type()))
+		                               parent.instance_type()))
 		{
 			if(parent_hide) {
 				hide_as_dupli_child_original = true;
diff --git a/intern/cycles/blender/blender_shader.cpp b/intern/cycles/blender/blender_shader.cpp
index 604c134a2f7..b04a0394141 100644
--- a/intern/cycles/blender/blender_shader.cpp
+++ b/intern/cycles/blender/blender_shader.cpp
@@ -812,7 +812,7 @@ static ShaderNode *add_node(Scene *scene,
 	else if(b_node.is_a(&RNA_ShaderNodeTexCoord)) {
 		BL::ShaderNodeTexCoord b_tex_coord_node(b_node);
 		TextureCoordinateNode *tex_coord = new TextureCoordinateNode();
-		tex_coord->from_dupli = b_tex_coord_node.from_dupli();
+		tex_coord->from_dupli = b_tex_coord_node.from_instancer();
 		if(b_tex_coord_node.object()) {
 			tex_coord->use_transform = true;
 			tex_coord->ob_tfm = get_transform(b_tex_coord_node.object().matrix_world());
@@ -865,7 +865,7 @@ static ShaderNode *add_node(Scene *scene,
 		BL::ShaderNodeUVMap b_uvmap_node(b_node);
 		UVMapNode *uvm = new UVMapNode();
 		uvm->attribute = b_uvmap_node.uv_map();
-		uvm->from_dupli = b_uvmap_node.from_dupli();
+		uvm->from_dupli = b_uvmap_node.from_instancer();
 		node = uvm;
 	}
 	else if(b_node.is_a(&RNA_ShaderNodeTexPointDensity)) {
diff --git a/release/scripts/freestyle/modules/parameter_editor.py b/release/scripts/freestyle/modules/parameter_editor.py
index f2001a1ae50..3e695f4d389 100644
--- a/release/scripts/freestyle/modules/parameter_editor.py
+++ b/release/scripts/freestyle/modules/parameter_editor.py
@@ -1188,8 +1188,8 @@ def get_dashed_pattern(linestyle):
 
 def get_grouped_objects(group):
     for ob in group.objects:
-        if ob.dupli_type == 'GROUP' and ob.dupli_group is not None:
-            for dupli in get_grouped_objects(ob.dupli_group):
+        if ob.instance_type == 'COLLECTION' and ob.instance_collection is not None:
+            for dupli in get_grouped_objects(ob.instance_collection):
                 yield dupli
         else:
             yield ob
@@ -1275,10 +1275,10 @@ def process(layer_name, lineset_name):
             upred = NotUP1D(upred)
         selection_criteria.append(upred)
     # prepare selection criteria by group of objects
-    if lineset.select_by_group:
-        if lineset.group is not None:
-            names = {getQualifiedObjectName(ob): True for ob in get_grouped_objects(lineset.group)}
-            upred = ObjectNamesUP1D(names, lineset.group_negation == 'EXCLUSIVE')
+    if lineset.select_by_collection:
+        if lineset.collection is not None:
+            names = {getQualifiedObjectName(ob): True for ob in get_grouped_objects(lineset.collection)}
+            upred = ObjectNamesUP1D(names, lineset.collection_negation == 'EXCLUSIVE')
             selection_criteria.append(upred)
     # prepare selection criteria by image border
     if lineset.select_by_image_border:
diff --git a/release/scripts/modules/bl_previews_utils/bl_previews_render.py b/release/scripts/modules/bl_previews_utils/bl_previews_render.py
index 16b0b107927..f425278e8cb 100644
--- a/release/scripts/modules/bl_previews_utils/bl_previews_render.py
+++ b/release/scripts/modules/bl_previews_utils/bl_previews_render.py
@@ -229,13 +229,13 @@ def do_previews(do_objects, do_collections, do_scenes, do_data_intern):
 
     def object_bbox_merge(bbox, ob, ob_space, offset_matrix):
         # Take collections instances into account (including linked one in this case).
-        if ob.type == 'EMPTY' and ob.dupli_type == 'COLLECTION':
-            grp_objects = tuple((ob.name, ob.library.filepath if ob.library else None) for ob in ob.dupli_group.all_objects)
+        if ob.type == 'EMPTY' and ob.instance_type == 'COLLECTION':
+            grp_objects = tuple((ob.name, ob.library.filepath if ob.library else None) for ob in ob.instance_collection.all_objects)
             if (len(grp_objects) == 0):
                 ob_bbox = ob.bound_box
             else:
                 coords = objects_bbox_calc(ob_space, grp_objects,
-                                           Matrix.Translation(ob.dupli_group.dupli_offset).inverted())
+                                           Matrix.Translation(ob.instance_collection.instance_offset).inverted())
                 ob_bbox = ((coords[0], coords[1], coords[2]), (coords[21], coords[22], coords[23]))
         elif ob.bound_box:
             ob_bbox = ob.bound_box
@@ -390,11 +390,11 @@ def do_previews(do_objects, do_collections, do_scenes, do_data_intern):
             bpy.context.screen.scene = scene
 
             bpy.ops.object.collection_instance_add(collection=grp.name)
-            grp_ob = next((ob for ob in scene.objects if ob.dupli_group and ob.dupli_group.name == grp.name))
+            grp_ob = next((ob for ob in scene.objects if ob.instance_collection and ob.dupli_coilection.name == grp.name))
             grp_obname = grp_ob.name
             scene.update()
 
-            offset_matrix = Matrix.Translation(grp.dupli_offset).inverted()
+            offset_matrix = Matrix.Translation(grp.instance_offset).inverted()
 
             preview_render_do(render_context, 'collections', grp.name, objects, offset_matrix)
 
diff --git a/release/scripts/modules/bpy_extras/io_utils.py b/release/scripts/modules/bpy_extras/io_utils.py
index e74631256e3..4b28a9edf70 100644
--- a/release/scripts/modules/bpy_extras/io_utils.py
+++ b/release/scripts/modules/bpy_extras/io_utils.py
@@ -341,10 +341,10 @@ def axis_conversion_ensure(operator, forward_attr, up_attr):
 # return a tuple (free, object list), free is True if memory should be freed
 # later with free_derived_objects()
 def create_derived_objects(scene, ob):
-    if ob.parent and ob.parent.dupli_type in {'VERTS', 'FACES'}:
+    if ob.parent and ob.parent.instance_type in {'VERTS', 'FACES'}:
         return False, None
 
-    if ob.dupli_type != 'NONE':
+    if ob.instance_type != 'NONE':
         ob.dupli_list_create(scene)
         return True, [(dob.object, dob.matrix) for dob in ob.dupli_list]
     else:
diff --git a/release/scripts/modules/bpy_types.py b/release/scripts/modules/bpy_types.py
index dda1ab7b4ed..7779e1ba38a 100644
--- a/release/scripts/modules/bpy_types.py
+++ b/release/scripts/modules/bpy_types.py
@@ -104,7 +104,7 @@ class Collection(bpy_types.ID):
         """The collection instance objects this collection is used in"""
         import bpy
         return tuple(obj for obj in bpy.data.objects
-                     if self == obj.dupli_group)
+                     if self == obj.instance_collection)
 
 
 class Object(bpy_types.ID):
diff --git a/release/scripts/startup/bl_operators/object.py b/release/scripts/startup/bl_operators/object.py
index b59c6da7368..ad1488339df 100644
--- a/release/scripts/startup/bl_operators/object.py
+++ b/release/scripts/startup/bl_operators/object.py
@@ -640,10 +640,10 @@ class MakeDupliFace(Operator):
             for obj in objects:
                 scene.objects.unlink(obj)
 
-            ob_new.dupli_type = 'FACES'
+            ob_new.instance_type = 'FACES'
             ob_inst.parent = ob_new
-            ob_new.use_dupli_faces_scale = True
-            ob_new.dupli_faces_scale = 1.0 / SCALE_FAC
+            ob_new.use_instance_faces_scale = True
+            ob_new.instance_faces_scale = 1.0 / SCALE_FAC
 
             ob_inst.select_set(True)
             ob_new.select_set(True)
@@ -852,7 +852,7 @@ class TransformsToDeltasAnim(Operator):
 
 class DupliOffsetFromCursor(Operator):
     """Set offset used for collection instances based on cursor position"""
-    bl_idname = "object.dupli_offset_from_cursor"
+    bl_idname = "object.instance_offset_from_cursor"
     bl_label = "Set Offset From Cursor"
     bl_options = {'INTERNAL', 'UNDO'}
 
@@ -864,7 +864,7 @@ class DupliOffsetFromCursor(Operator):
         scene = context.scene
         collection = context.collection
 
-        collection.dupli_offset = scene.cursor_location
+        collection.instance_offset = scene.cursor_location
 
         return {'FINISHED'}
 
diff --git a/release/scripts/startup/bl_operators/rigidbody.py b/release/scripts/startup/bl_operators/rigidbody.py
index cca01a6f2fa..235db39e9b1 100644
--- a/release/scripts/startup/bl_operators/rigidbody.py
+++ b/release/scripts/startup/bl_operators/rigidbody.py
@@ -47,7 +47,7 @@ class CopyRigidbodySettings(Operator):
         "deactivate_angular_velocity",
         "linear_damping",
         "angular_damping",
-        "collision_groups",
+        "collision_collections",
         "mesh_source",
         "use_deform",
         "enabled",
diff --git a/release/scripts/startup/bl_ui/properties_freestyle.py b/release/scripts/startup/bl_ui/properties_freestyle.py
index f5f15c7ca58..c67ea2d4b8b 100644
--- a/release/scripts/startup/bl_ui/properties_freestyle.py
+++ b/release/scripts/startup/bl_ui/properties_freestyle.py
@@ -208,7 +208,7 @@ class VIEWLAYER_PT_freestyle_lineset(ViewLayerFreestyleEditorButtonsPanel, Panel
             row.prop(lineset, "select_by_visibility", text="Visibility", toggle=True)
             row.prop(lineset, "select_by_edge_types", text="Edge Types", toggle=True)
             row.prop(lineset, "select_by_face_marks", text="Face Marks", toggle=True)
-            row.prop(lineset, "select_by_group", text="Group", toggle=True)
+            row.prop(lineset, "select_by_collection", text="Collection", toggle=True)
             row.prop(lineset, "select_by_image_border", text="Image Border", toggle=True)
 
             if lineset.select_by_visibility:
@@ -247,11 +247,11 @@ class VIEWLAYER_PT_freestyle_lineset(ViewLayerFreestyleEditorButtonsPanel, Panel
                 row.prop(lineset, "face_mark_negation", expand=True)
                 row.prop(lineset, "face_mark_condition", expand=True)
 
-            if lineset.select_by_group:
-                col.label(text="Group:")
+            if lineset.select_by_collection:
+                col.label(text="Collection:")
                 row = col.row()
-                row.prop(lineset, "group", text="")
-                row.prop(lineset, "group_negation", expand=True)
+                row.prop(lineset, "collection", text="")
+                row.prop(lineset, "collection_negation", expand=True)
 
 
 class VIEWLAYER_PT_freestyle_linestyle(ViewLayerFreestyleEditorButtonsPanel, Panel):
diff --git a/release/scripts/startup/bl_ui/properties_object.py b/release/scripts/startup/bl_ui/properties_object.py
index a1bd50c32c5..aafeb0a103d 100644
--- a/release/scripts/startup/bl_ui/properties_object.py
+++ b/release/scripts/startup/bl_ui/properties_object.py
@@ -176,7 +176,7 @@ class COLLECTION_MT_specials(Menu):
 
         layout.operator("object.collection_unlink", icon='X')
         layout.operator("object.collection_objects_select")
-        layout.operator("object.dupli_offset_from_cursor")
+        layout.operator("object.instance_offset_from_cursor")
 
 
 class OBJECT_PT_collections(ObjectButtonsPanel, Panel):
@@ -212,7 +212,7 @@ class OBJECT_PT_collections(ObjectButtonsPanel, Panel):
                 row.menu("COLLECTION_MT_specials", icon='DOWNARROW_HLT', text="")
 
                 row = col.box().row()
-                row.prop(collection, "dupli_offset", text="")
+                row.prop(collection, "instance_offset", text="")
 
 
 class OBJECT_PT_display(ObjectButtonsPanel, Panel):
@@ -230,7 +230,7 @@ class OBJECT_PT_display(ObjectButtonsPanel, Panel):
         is_geometry = (obj_type in {'MESH', 'CURVE', 'SURFACE', 'META', 'FONT'})
         is_wire = (obj_type in {'CAMERA', 'EMPTY'})
         is_empty_image = (obj_type == 'EMPTY' and obj.empty_display_type == 'IMAGE')
-        is_dupli = (obj.dupli_type != 'NONE')
+        is_dupli = (obj.instance_type != 'NONE')
 
         col = flow.column()
         col.prop(obj, "show_name", text="Name")
@@ -288,42 +288,42 @@ class OBJECT_PT_duplication(ObjectButtonsPanel, Panel):
         ob = context.object
 
         row = layout.row()
-        row.prop(ob, "dupli_type", expand=True)
+        row.prop(ob, "instance_type", expand=True)
 
         layout.use_property_split = True
         flow = layout.grid_flow(row_major=True, columns=0, even_columns=True, even_rows=False, align=False)
 
-        if ob.dupli_type == 'FRAMES':
+        if ob.instance_type == 'FRAMES':
 
             col = flow.column(align=True)
-            col.prop(ob, "dupli_frames_start", text="Start")
-            col.prop(ob, "dupli_frames_end", text="End")
+            col.prop(ob, "instance_frames_start", text="Start")
+            col.prop(ob, "instance_frames_end", text="End")
 
             col = flow.column(align=True)
-            col.prop(ob, "dupli_frames_on", text="On")
-            col.prop(ob, "dupli_frames_off", text="Off")
+            col.prop(ob, "instance_frames_on", text="On")
+            col.prop(ob, "instance_frames_off", text="Off")
 
             col = flow.column(align=True)
-            col.prop(ob, "use_dupli_frames_speed", text="Speed")
+            col.prop(ob, "use_instance_frames_speed", text="Speed")
 
-        elif ob.dupli_type == 'VERTS':
-            layout.prop(ob, "use_dupli_vertices_rotation", text="Rotation")
+        elif ob.instance_type == 'VERTS':
+            layout.prop(ob, "use_instance_vertices_rotation", text="Rotation")
 
-        elif ob.dupli_type == 'FACES':
+        elif ob.instance_type == 'FACES':
             col = flow.column()
-            col.prop(ob, "use_dupli_faces_scale", text="Scale")
+            col.prop(ob, "use_instance_faces_scale", text="Scale")
             sub = col.column()
-            sub.active = ob.use_dupli_faces_scale
-            sub.prop(ob, "dupli_faces_scale", text="Inherit Scale")
+            sub.active = ob.use_instance_faces_scale
+            sub.prop(ob, "instance_faces_scale", text="Inherit Scale")
 
-        elif ob.dupli_type == 'COLLECTION':
+        elif ob.instance_type == 'COLLECTION':
             col = flow.column()
-            col.prop(ob, "dupli_group", text="Collection")
+            col.prop(ob, "instance_collection", text="Collection")
 
-        if ob.dupli_type != 'NONE' or len(ob.particle_systems):
+        if ob.instance_type != 'NONE' or len(ob.particle_systems):
             col = flow.column(align=True)
-            col.prop(ob, "show_duplicator_for_viewport")
-            col.prop(ob, "show_duplicator_for_render")
+            col.prop(ob, "show_instancer_for_viewport")
+            col.prop(ob, "show_instancer_for_render")
 
 
 from .properties_animviz import (
diff --git a/release/scripts/startup/bl_ui/properties_particle.py b/release/scripts/startup/bl_ui/properties_particle.py
index f727f1110a4..c7b97836267 100644
--- a/release/scripts/startup/bl_ui/properties_particle.py
+++ b/release/scripts/startup/bl_ui/properties_particle.py
@@ -879,7 +879,7 @@ class PARTICLE_PT_physics_boids_movement(ParticleButtonsPanel, Panel):
 
         layout.separator()
 
-        layout.prop(part, "collision_group")
+        layout.prop(part, "collision_collection")
 
 
 class PARTICLE_PT_physics_boids_battle(ParticleButtonsPanel, Panel):
@@ -1018,7 +1018,7 @@ class PARTICLE_PT_physics_deflection(ParticleButtonsPanel, Panel):
         col.prop(part, "use_size_deflect")
         col.prop(part, "use_die_on_collision")
 
-        col.prop(part, "collision_group")
+        col.prop(part, "collision_collection")
 
 
 class PARTICLE_PT_physics_forces(ParticleButtonsPanel, Panel):
@@ -1229,7 +1229,7 @@ class PARTICLE_PT_render(ParticleButtonsPanel, Panel):
 
         if context.object:
             layout.separator()
-            layout.prop(context.object, "show_duplicator_for_render", text="Show Emitter")
+            layout.prop(context.object, "show_instancer_for_render", text="Show Emitter")
 
 
 class PARTICLE_PT_render_extra(ParticleButtonsPanel, Panel):
@@ -1366,11 +1366,11 @@ class PARTICLE_PT_render_object(ParticleButtonsPanel, Panel):
 
         col = layout.column()
 
-        col.prop(part, "dupli_object", text="Instance Object")
+        col.prop(part, "instance_object", text="Instance Object")
         sub = col.column()
-        sub.prop(part, "use_global_dupli", text="Global Coordinates")
-        sub.prop(part, "use_rotation_dupli", text="Object Rotation")
-        sub.prop(part, "use_scale_dupli", text="Object Scale")
+        sub.prop(part, "use_global_instance", text="Global Coordinates")
+        sub.prop(part, "use_rotation_instance", text="Object Rotation")
+        sub.prop(part, "use_scale_instance", text="Object Scale")
 
 
 class PARTICLE_PT_render_collection(ParticleButtonsPanel, Panel):
@@ -1392,15 +1392,15 @@ class PARTICLE_PT_render_collection(ParticleButtonsPanel, Panel):
 
         col = layout.column()
 
-        col.prop(part, "dupli_group")
+        col.prop(part, "instance_collection")
 
-        col.prop(part, "use_whole_group")
+        col.prop(part, "use_whole_collection")
         sub = col.column()
-        sub.active = (part.use_whole_group is False)
-        sub.prop(part, "use_group_pick_random")
-        sub.prop(part, "use_global_dupli", text="Global Coordinates")
-        sub.prop(part, "use_rotation_dupli", text="Object Rotation")
-        sub.prop(part, "use_scale_dupli", text="Object Scale")
+        sub.active = (part.use_whole_collection is False)
+        sub.prop(part, "use_collection_pick_random")
+        sub.prop(part, "use_global_instance", text="Global Coordinates")
+        sub.prop(part, "use_rotation_instance", text="Object Rotation")
+        sub.prop(part, "use_scale_instance", text="Object Scale")
 
 
 class PARTICLE_PT_render_collection_use_count(ParticleButtonsPanel, Panel):
@@ -1418,9 +1418,9 @@ class PARTICLE_PT_render_collection_use_count(ParticleButtonsPanel, Panel):
         layout = self.layout
         part = particle_get_settings(context)
 
-        layout.active = not part.use_whole_group
+        layout.active = not part.use_whole_collection
 
-        layout.prop(part, "use_group_count", text="")
+        layout.prop(part, "use_collection_count", text="")
 
     def draw(self, context):
         layout = self.layout
@@ -1430,11 +1430,11 @@ class PARTICLE_PT_render_collection_use_count(ParticleButtonsPanel, Panel):
 
         col = layout.column()
 
-        layout.active = part.use_group_count and not part.use_whole_group
+        layout.active = part.use_collection_count and not part.use_whole_collection
 
         row = layout.row()
-        row.template_list("UI_UL_list", "particle_dupli_weights", part, "dupli_weights",
-                          part, "active_dupliweight_index")
+        row.template_list("UI_UL_list", "particle_instance_weights", part, "instance_weights",
+                          part, "active_instanceweight_index")
 
         col = row.column()
         sub = col.row()
@@ -1446,7 +1446,7 @@ class PARTICLE_PT_render_collection_use_count(ParticleButtonsPanel, Panel):
         subsub.separator()
         subsub.operator("particle.dupliob_refresh", icon='FILE_REFRESH', text="")
 
-        weight = part.active_dupliweight
+        weight = part.active_instanceweight
         if weight:
             row = layout.row()
             row.prop(weight, "count")
@@ -1635,7 +1635,7 @@ class PARTICLE_PT_draw(ParticleButtonsPanel, Panel):
 
         if context.object:
             layout.separator()
-            layout.prop(context.object, "show_duplicator_for_viewport", text="Show Emitter")
+            layout.prop(context.object, "show_instancer_for_viewport", text="Show Emitter")
 
 
 class PARTICLE_PT_children(ParticleButtonsPanel, Panel):
diff --git a/release/scripts/startup/bl_ui/properties_physics_cloth.py b/release/scripts/startup/bl_ui/properties_physics_cloth.py
index 8ccf3f63465..71731644caf 100644
--- a/release/scripts/startup/bl_ui/properties_physics_cloth.py
+++ b/release/scripts/startup/bl_ui/properties_physics_cloth.py
@@ -273,7 +273,7 @@ class PHYSICS_PT_cloth_object_collision(PhysicButtonsPanel, Panel):
         col.prop(cloth, "impulse_clamp")
 
         col = flow.column()
-        col.prop(cloth, "group")
+        col.prop(cloth, "collection")
 
 
 class PHYSICS_PT_cloth_self_collision(PhysicButtonsPanel, Panel):
diff --git a/release/scripts/startup/bl_ui/properties_physics_common.py b/release/scripts/startup/bl_ui/properties_physics_common.py
index 49cd1a41499..9e537e85911 100644
--- a/release/scripts/startup/bl_ui/properties_physics_common.py
+++ b/release/scripts/startup/bl_ui/properties_physics_common.py
@@ -242,7 +242,7 @@ def effector_weights_ui(self, context, weights, weight_type):
     # NOTE: TODO temporarly used until the animate properties are properly skipped.
     layout.use_property_decorate = False  # No animation (remove this later on).
 
-    layout.prop(weights, "group")
+    layout.prop(weights, "collection")
 
     flow = layout.grid_flow(row_major=True, columns=0, even_columns=True, even_rows=False, align=True)
 
diff --git a/release/scripts/startup/bl_ui/properties_physics_dynamicpaint.py b/release/scripts/startup/bl_ui/properties_physics_dynamicpaint.py
index de76047b458..1d3866bb142 100644
--- a/release/scripts/startup/bl_ui/properties_physics_dynamicpaint.py
+++ b/release/scripts/startup/bl_ui/properties_physics_dynamicpaint.py
@@ -260,7 +260,7 @@ class PHYSICS_PT_dp_advanced_canvas(PhysicButtonsPanel, Panel):
             col.separator()
 
         col = flow.column()
-        col.prop(surface, "brush_group")
+        col.prop(surface, "brush_collection")
 
         if surface_type not in {'DISPLACE', 'WAVE'}:
             col = flow.column()  # flow the layout otherwise.
diff --git a/release/scripts/startup/bl_ui/properties_physics_rigidbody.py b/release/scripts/startup/bl_ui/properties_physics_rigidbody.py
index 13d07d64028..1c0598fb6dc 100644
--- a/release/scripts/startup/bl_ui/properties_physics_rigidbody.py
+++ b/release/scripts/startup/bl_ui/properties_physics_rigidbody.py
@@ -191,7 +191,7 @@ class PHYSICS_PT_rigid_body_collisions_collections(PHYSICS_PT_rigidbody_panel, P
         ob = context.object
         rbo = ob.rigid_body
 
-        layout.prop(rbo, "collision_groups", text="")
+        layout.prop(rbo, "collision_collections", text="")
 
 
 class PHYSICS_PT_rigid_body_dynamics(PHYSICS_PT_rigidbody_panel, Panel):
diff --git a/release/scripts/startup/bl_ui/properties_physics_smoke.py b/release/scripts/startup/bl_ui/properties_physics_smoke.py
index 9c502bbd9d6..4fd79f26b0b 100644
--- a/release/scripts/startup/bl_ui/properties_physics_smoke.py
+++ b/release/scripts/startup/bl_ui/properties_physics_smoke.py
@@ -487,11 +487,11 @@ class PHYSICS_PT_smoke_collections(PhysicButtonsPanel, Panel):
         domain = context.smoke.domain_settings
 
         col = layout.column()
-        col.prop(domain, "fluid_group", text="Flow")
+        col.prop(domain, "fluid_collection", text="Flow")
 
         # col = layout.column()
-        # col.prop(domain, "effector_group", text="Effector")
-        col.prop(domain, "collision_group", text="Collision")
+        # col.prop(domain, "effector_collection", text="Effector")
+        col.prop(domain, "collision_collection", text="Collision")
 
 
 class PHYSICS_PT_smoke_cache(PhysicButtonsPanel, Panel):
diff --git a/release/scripts/startup/bl_ui/properties_physics_softbody.py b/release/scripts/startup/bl_ui/properties_physics_softbody.py
index 4b3867f8970..12fb2973b4f 100644
--- a/release/scripts/startup/bl_ui/properties_physics_softbody.py
+++ b/release/scripts/startup/bl_ui/properties_physics_softbody.py
@@ -56,7 +56,7 @@ class PHYSICS_PT_softbody(PhysicButtonsPanel, Panel):
         md = context.soft_body
         softbody = md.settings
 
-        layout.prop(softbody, "collision_group")
+        layout.prop(softbody, "collision_collection")
 
 
 class PHYSICS_PT_softbody_object(PhysicButtonsPanel, Panel):
diff --git a/release/scripts/startup/bl_ui/properties_scene.py b/release/scripts/startup/bl_ui/properties_scene.py
index 6f1060323b2..32524ec092c 100644
--- a/release/scripts/startup/bl_ui/properties_scene.py
+++ b/release/scripts/startup/bl_ui/properties_scene.py
@@ -400,7 +400,7 @@ class SCENE_PT_rigid_body_world_settings(SceneButtonsPanel, Panel):
             col.active = rbw.enabled
 
             col = col.column()
-            col.prop(rbw, "group")
+            col.prop(rbw, "collection")
             col.prop(rbw, "constraints")
 
             col = col.column()
diff --git a/release/scripts/templates_py/operator_modal_view3d_raycast.py b/release/scripts/templates_py/operator_modal_view3d_raycast.py
index 4b9700dd3fe..e5467228dfa 100644
--- a/release/scripts/templates_py/operator_modal_view3d_raycast.py
+++ b/release/scripts/templates_py/operator_modal_view3d_raycast.py
@@ -23,7 +23,7 @@ def main(context, event):
             if obj.type == 'MESH':
                 yield (obj, obj.matrix_world.copy())
 
-            if obj.dupli_type != 'NONE':
+            if obj.instance_type != 'NONE':
                 obj.dupli_list_create(scene)
                 for dob in obj.dupli_list:
                     obj_dupli = dob.object
diff --git a/source/blender/editors/space_node/drawnode.c b/source/blender/editors/space_node/drawnode.c
index 65170c7c203..b5d47809606 100644
--- a/source/blender/editors/space_node/drawnode.c
+++ b/source/blender/editors/space_node/drawnode.c
@@ -921,7 +921,7 @@ static void node_shader_buts_tex_pointdensity(uiLayout *layout, bContext *UNUSED
 static void node_shader_buts_tex_coord(uiLayout *layout, bContext *UNUSED(C), PointerRNA *ptr)
 {
 	uiItemR(layout, ptr, "object", 0, NULL, 0);
-	uiItemR(layout, ptr, "from_dupli", 0, NULL, 0);
+	uiItemR(layout, ptr, "from_instancer", 0, NULL, 0);
 }
 
 static void node_shader_buts_bump(uiLayout *layout, bContext *UNUSED(C), PointerRNA *ptr)
@@ -931,9 +931,9 @@ static void node_shader_buts_bump(uiLayout *layout, bContext *UNUSED(C), Pointer
 
 static void node_shader_buts_uvmap(uiLayout *layout, bContext *C, PointerRNA *ptr)
 {
-	uiItemR(layout, ptr, "from_dupli", 0, NULL, 0);
+	uiItemR(layout, ptr, "from_instancer", 0, NULL, 0);
 
-	if (!RNA_boolean_get(ptr, "from_dupli")) {
+	if (!RNA_boolean_get(ptr, "from_instancer")) {
 		PointerRNA obptr = CTX_data_pointer_get(C, "active_object");
 
 		if (obptr.data && RNA_enum_get(&obptr, "type") == OB_MESH) {
diff --git a/source/blender/makesrna/intern/rna_cloth.c b/source/blender/makesrna/intern/rna_cloth.c
index c178f0b7389..4d648d8c00b 100644
--- a/source/blender/makesrna/intern/rna_cloth.c
+++ b/source/blender/makesrna/intern/rna_cloth.c
@@ -825,9 +825,10 @@ static void rna_def_cloth_collision_settings(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Self Friction", "Friction with self contact");
 	RNA_def_property_update(prop, 0, "rna_cloth_update");
 
-	prop = RNA_def_property(srna, "group", PROP_POINTER, PROP_NONE);
+	prop = RNA_def_property(srna, "collection", PROP_POINTER, PROP_NONE);
+	RNA_def_property_pointer_sdna(prop, NULL, "group");
 	RNA_def_property_flag(prop, PROP_EDITABLE);
-	RNA_def_property_ui_text(prop, "Collision Group", "Limit colliders to this Group");
+	RNA_def_property_ui_text(prop, "Collision Collection", "Limit colliders to this Collection");
 	RNA_def_property_update(prop, 0, "rna_cloth_dependency_update");
 
 	prop = RNA_def_property(srna, "vertex_group_self_collisions", PROP_STRING, PROP_NONE);
diff --git a/source/blender/makesrna/intern/rna_collection.c b/source/blender/makesrna/intern/rna_collection.c
index 03e00708738..5230157cfad 100644
--- a/source/blender/makesrna/intern/rna_collection.c
+++ b/source/blender/makesrna/intern/rna_collection.c
@@ -309,15 +309,16 @@ void RNA_def_collections(BlenderRNA *brna)
 	PropertyRNA *prop;
 
 	srna = RNA_def_struct(brna, "Collection", "ID");
+	/* XXX: CAN WE RENAME TO Collection? */
 	RNA_def_struct_sdna(srna, "Group"); /* it is actually Collection but for 2.8 the dna is patched! */
 	RNA_def_struct_ui_text(srna, "Collection", "Collection of Object data-blocks");
 	RNA_def_struct_ui_icon(srna, ICON_GROUP);
 	/* this is done on save/load in readfile.c, removed if no objects are in the collection and not in a scene */
 	RNA_def_struct_clear_flag(srna, STRUCT_ID_REFCOUNT);
 
-	prop = RNA_def_property(srna, "dupli_offset", PROP_FLOAT, PROP_TRANSLATION);
+	prop = RNA_def_property(srna, "instance_offset", PROP_FLOAT, PROP_TRANSLATION);
 	RNA_def_property_float_sdna(prop, NULL, "dupli_ofs");
-	RNA_def_property_ui_text(prop, "Dupli Offset", "Offset from the origin to use when instancing");
+	RNA_def_property_ui_text(prop, "Instance Offset", "Offset from the origin to use when instancing");
 	RNA_def_property_ui_range(prop, -10000.0, 10000.0, 10, RNA_TRANSLATION_PREC_DEFAULT);
 	RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, NULL);
 
diff --git a/source/blender/makesrna/intern/rna_dynamicpaint.c b/source/blender/makesrna/intern/rna_dynamicpaint.c
index 523a4e4ad6e..11247fa6797 100644
--- a/source/blender/makesrna/intern/rna_dynamicpaint.c
+++ b/source/blender/makesrna/intern/rna_dynamicpaint.c
@@ -424,8 +424,9 @@ static void rna_def_canvas_surface(BlenderRNA *brna)
 	RNA_def_property_update(prop, NC_OBJECT, "rna_DynamicPaintSurface_uniqueName");
 	RNA_def_struct_name_property(srna, prop);
 
-	prop = RNA_def_property(srna, "brush_group", PROP_POINTER, PROP_NONE);
+	prop = RNA_def_property(srna, "brush_collection", PROP_POINTER, PROP_NONE);
 	RNA_def_property_struct_type(prop, "Collection");
+	RNA_def_property_pointer_sdna(prop, NULL, "brush_group");
 	RNA_def_property_flag(prop, PROP_EDITABLE);
 	RNA_def_property_ui_text(prop, "Brush Collection", "Only use brush objects from this collection");
 	RNA_def_property_update(prop, NC_OBJECT | ND_MODIFIER, "rna_DynamicPaint_reset_dependency");
diff --git a/source/blender/makesrna/intern/rna_nodetree.c b/source/blender/makesrna/intern/rna_nodetree.c
index 8169e88cac0..3742c70da17 100644
--- a/source/blender/makesrna/intern/rna_nodetree.c
+++ b/source/blender/makesrna/intern/rna_nodetree.c
@@ -4057,9 +4057,9 @@ static void def_sh_tex_coord(StructRNA *srna)
 	RNA_def_property_ui_text(prop, "Object", "Use coordinates from this object (for object texture coordinates output)");
 	RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_update");
 
-	prop = RNA_def_property(srna, "from_dupli", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "from_instancer", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "custom1", 1);
-	RNA_def_property_ui_text(prop, "From Dupli", "Use the parent of the dupli object if possible");
+	RNA_def_property_ui_text(prop, "From Instancer", "Use the parent of the dupli object if possible");
 	RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_update");
 }
 
@@ -4355,9 +4355,9 @@ static void def_sh_uvmap(StructRNA *srna)
 {
 	PropertyRNA *prop;
 
-	prop = RNA_def_property(srna, "from_dupli", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "from_instancer", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "custom1", 1);
-	RNA_def_property_ui_text(prop, "From Dupli", "Use the parent of the dupli object if possible");
+	RNA_def_property_ui_text(prop, "From Instancer", "Use the parent of the dupli object if possible");
 	RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_update");
 
 	RNA_def_struct_sdna_from(srna, "NodeShaderUVMap", "storage");
diff --git a/source/blender/makesrna/intern/rna_object.c b/source/blender/makesrna/intern/rna_object.c
index 96def17bc3e..c10502df403 100644
--- a/source/blender/makesrna/intern/rna_object.c
+++ b/source/blender/makesrna/intern/rna_object.c
@@ -134,27 +134,27 @@ static const EnumPropertyItem parent_type_items[] = {
 	{0, NULL, 0, NULL, NULL}
 };
 
-#define DUPLI_ITEMS_SHARED \
+#define INSTANCE_ITEMS_SHARED \
 	{0, "NONE", 0, "None", ""}, \
 	{OB_DUPLIFRAMES, "FRAMES", 0, "Frames", "Make copy of object for every frame"}, \
 	{OB_DUPLIVERTS, "VERTS", 0, "Verts", "Duplicate child objects on all vertices"}, \
 	{OB_DUPLIFACES, "FACES", 0, "Faces", "Duplicate child objects on all faces"}
 
-#define DUPLI_ITEM_COLLECTION \
+#define INSTANCE_ITEM_COLLECTION \
 	{OB_DUPLICOLLECTION, "COLLECTION", 0, "Collection", "Enable collection instancing"}
-static const EnumPropertyItem dupli_items[] = {
-	DUPLI_ITEMS_SHARED,
-	DUPLI_ITEM_COLLECTION,
+static const EnumPropertyItem instance_items[] = {
+	INSTANCE_ITEMS_SHARED,
+	INSTANCE_ITEM_COLLECTION,
 	{0, NULL, 0, NULL, NULL}
 };
 #ifdef RNA_RUNTIME
-static EnumPropertyItem dupli_items_nogroup[] = {
-	DUPLI_ITEMS_SHARED,
+static EnumPropertyItem instance_items_nogroup[] = {
+	INSTANCE_ITEMS_SHARED,
 	{0, NULL, 0, NULL, NULL}
 };
 #endif
-#undef DUPLI_ITEMS_SHARED
-#undef DUPLI_ITEM_COLLECTION
+#undef INSTANCE_ITEMS_SHARED
+#undef INSTANCE_ITEM_COLLECTION
 
 const EnumPropertyItem rna_enum_metaelem_type_items[] = {
 	{MB_BALL, "BALL", ICON_META_BALL, "Ball", ""},
@@ -519,7 +519,7 @@ static void rna_Object_parent_bone_set(PointerRNA *ptr, const char *value)
 	ED_object_parent(ob, ob->parent, ob->partype, value);
 }
 
-static const EnumPropertyItem *rna_Object_dupli_type_itemf(
+static const EnumPropertyItem *rna_Object_instance_type_itemf(
         bContext *UNUSED(C), PointerRNA *ptr,
         PropertyRNA *UNUSED(prop), bool *UNUSED(r_free))
 {
@@ -527,16 +527,16 @@ static const EnumPropertyItem *rna_Object_dupli_type_itemf(
 	const EnumPropertyItem *item;
 
 	if (ob->type == OB_EMPTY) {
-		item = dupli_items;
+		item = instance_items;
 	}
 	else {
-		item = dupli_items_nogroup;
+		item = instance_items_nogroup;
 	}
 
 	return item;
 }
 
-static void rna_Object_dup_group_set(PointerRNA *ptr, PointerRNA value)
+static void rna_Object_dup_collection_set(PointerRNA *ptr, PointerRNA value)
 {
 	Object *ob = (Object *)ptr->data;
 	Collection *grp = (Collection *)value.data;
@@ -557,7 +557,7 @@ static void rna_Object_dup_group_set(PointerRNA *ptr, PointerRNA value)
 	}
 	else {
 		BKE_report(NULL, RPT_ERROR,
-		           "Cannot set dupli-group as object belongs in group being instanced, thus causing a cycle");
+		           "Cannot set instance-collection as object belongs in group being instanced, thus causing a cycle");
 	}
 }
 
@@ -2203,7 +2203,7 @@ static void rna_def_object(BlenderRNA *brna)
 	RNA_def_property_enum_sdna(prop, NULL, "trackflag");
 	RNA_def_property_enum_items(prop, rna_enum_object_axis_items);
 	RNA_def_property_ui_text(prop, "Track Axis",
-	                         "Axis that points in 'forward' direction (applies to DupliFrame when "
+	                         "Axis that points in 'forward' direction (applies to InstanceFrame when "
 	                         "parent 'Follow' is enabled)");
 	RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_Object_internal_update");
 
@@ -2211,7 +2211,7 @@ static void rna_def_object(BlenderRNA *brna)
 	RNA_def_property_enum_sdna(prop, NULL, "upflag");
 	RNA_def_property_enum_items(prop, up_items);
 	RNA_def_property_ui_text(prop, "Up Axis",
-	                         "Axis that points in the upward direction (applies to DupliFrame when "
+	                         "Axis that points in the upward direction (applies to InstanceFrame when "
 	                         "parent 'Follow' is enabled)");
 	RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_Object_internal_update");
 
@@ -2219,7 +2219,8 @@ static void rna_def_object(BlenderRNA *brna)
 	prop = RNA_def_property(srna, "proxy", PROP_POINTER, PROP_NONE);
 	RNA_def_property_ui_text(prop, "Proxy", "Library object this proxy object controls");
 
-	prop = RNA_def_property(srna, "proxy_group", PROP_POINTER, PROP_NONE);
+	prop = RNA_def_property(srna, "proxy_collection", PROP_POINTER, PROP_NONE);
+	RNA_def_property_pointer_sdna(prop, NULL, "proxy_group");
 	RNA_def_property_ui_text(prop, "Proxy Collection", "Library collection duplicator object this proxy object controls");
 
 	/* materials */
@@ -2584,13 +2585,13 @@ static void rna_def_object(BlenderRNA *brna)
 	RNA_def_property_ui_icon(prop, ICON_RESTRICT_RENDER_OFF, -1);
 	RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_Object_hide_update");
 
-	prop = RNA_def_property(srna, "show_duplicator_for_render", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "show_instancer_for_render", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "duplicator_visibility_flag", OB_DUPLI_FLAG_RENDER);
-	RNA_def_property_ui_text(prop, "Render Duplicator", "Make duplicator visible when rendering");
+	RNA_def_property_ui_text(prop, "Render Instancer", "Make duplicator visible when rendering");
 
-	prop = RNA_def_property(srna, "show_duplicator_for_viewport", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "show_instancer_for_viewport", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "duplicator_visibility_flag", OB_DUPLI_FLAG_VIEWPORT);
-	RNA_def_property_ui_text(prop, "Display Duplicator", "Make duplicator visible in the viewport");
+	RNA_def_property_ui_text(prop, "Display Instancer", "Make duplicator visible in the viewport");
 
 	/* anim */
 	rna_def_animdata_common(srna);
@@ -2614,70 +2615,70 @@ static void rna_def_object(BlenderRNA *brna)
 	RNA_def_property_update(prop, NC_OBJECT | ND_TRANSFORM, "rna_Object_internal_update");
 
 	/* duplicates */
-	prop = RNA_def_property(srna, "dupli_type", PROP_ENUM, PROP_NONE);
+	prop = RNA_def_property(srna, "instance_type", PROP_ENUM, PROP_NONE);
 	RNA_def_property_enum_bitflag_sdna(prop, NULL, "transflag");
-	RNA_def_property_enum_items(prop, dupli_items);
-	RNA_def_property_enum_funcs(prop, NULL, NULL, "rna_Object_dupli_type_itemf");
-	RNA_def_property_ui_text(prop, "Dupli Type", "If not None, object duplication method to use");
+	RNA_def_property_enum_items(prop, instance_items);
+	RNA_def_property_enum_funcs(prop, NULL, NULL, "rna_Object_instance_type_itemf");
+	RNA_def_property_ui_text(prop, "Instance Type", "If not None, object duplication method to use");
 	RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_Object_dependency_update");
 
-	prop = RNA_def_property(srna, "use_dupli_frames_speed", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "use_instance_frames_speed", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_negative_sdna(prop, NULL, "transflag", OB_DUPLINOSPEED);
-	RNA_def_property_ui_text(prop, "Dupli Frames Speed",
+	RNA_def_property_ui_text(prop, "Instance Frames Speed",
 	                         "Set dupliframes to use the current frame instead of parent curve's evaluation time");
 	RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_Object_internal_update");
 
-	prop = RNA_def_property(srna, "use_dupli_vertices_rotation", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "use_instance_vertices_rotation", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "transflag", OB_DUPLIROT);
 	RNA_def_property_ui_text(prop, "Dupli Verts Rotation", "Rotate dupli according to vertex normal");
 	RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, NULL);
 
-	prop = RNA_def_property(srna, "use_dupli_faces_scale", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "use_instance_faces_scale", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "transflag", OB_DUPLIFACES_SCALE);
-	RNA_def_property_ui_text(prop, "Dupli Faces Inherit Scale", "Scale dupli based on face size");
+	RNA_def_property_ui_text(prop, "Instance Faces Inherit Scale", "Scale dupli based on face size");
 	RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_Object_internal_update");
 
-	prop = RNA_def_property(srna, "dupli_faces_scale", PROP_FLOAT, PROP_NONE);
+	prop = RNA_def_property(srna, "instance_faces_scale", PROP_FLOAT, PROP_NONE);
 	RNA_def_property_float_sdna(prop, NULL, "dupfacesca");
 	RNA_def_property_range(prop, 0.001f, 10000.0f);
-	RNA_def_property_ui_text(prop, "Dupli Faces Scale", "Scale the DupliFace objects");
+	RNA_def_property_ui_text(prop, "Instance Faces Scale", "Scale the DupliFace objects");
 	RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_Object_internal_update");
 
-	prop = RNA_def_property(srna, "dupli_group", PROP_POINTER, PROP_NONE);
+	prop = RNA_def_property(srna, "instance_collection", PROP_POINTER, PROP_NONE);
 	RNA_def_property_struct_type(prop, "Collection");
 	RNA_def_property_pointer_sdna(prop, NULL, "dup_group");
 	RNA_def_property_flag(prop, PROP_EDITABLE);
-	RNA_def_property_pointer_funcs(prop, NULL, "rna_Object_dup_group_set", NULL, NULL);
-	RNA_def_property_ui_text(prop, "Dupli Collection", "Instance an existing collection");
+	RNA_def_property_pointer_funcs(prop, NULL, "rna_Object_dup_collection_set", NULL, NULL);
+	RNA_def_property_ui_text(prop, "Instance Collection", "Instance an existing collection");
 	RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_Object_dependency_update");
 
-	prop = RNA_def_property(srna, "dupli_frames_start", PROP_INT, PROP_NONE | PROP_UNIT_TIME);
+	prop = RNA_def_property(srna, "instance_frames_start", PROP_INT, PROP_NONE | PROP_UNIT_TIME);
 	RNA_def_property_int_sdna(prop, NULL, "dupsta");
 	RNA_def_property_range(prop, MINAFRAME, MAXFRAME);
-	RNA_def_property_ui_text(prop, "Dupli Frames Start", "Start frame for DupliFrames");
+	RNA_def_property_ui_text(prop, "Instance Frames Start", "Start frame for DupliFrames");
 	RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_Object_internal_update");
 
-	prop = RNA_def_property(srna, "dupli_frames_end", PROP_INT, PROP_NONE | PROP_UNIT_TIME);
+	prop = RNA_def_property(srna, "instance_frames_end", PROP_INT, PROP_NONE | PROP_UNIT_TIME);
 	RNA_def_property_int_sdna(prop, NULL, "dupend");
 	RNA_def_property_range(prop, MINAFRAME, MAXFRAME);
-	RNA_def_property_ui_text(prop, "Dupli Frames End", "End frame for DupliFrames");
+	RNA_def_property_ui_text(prop, "Instance Frames End", "End frame for DupliFrames");
 	RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_Object_internal_update");
 
-	prop = RNA_def_property(srna, "dupli_frames_on", PROP_INT, PROP_NONE | PROP_UNIT_TIME);
+	prop = RNA_def_property(srna, "instance_frames_on", PROP_INT, PROP_NONE | PROP_UNIT_TIME);
 	RNA_def_property_int_sdna(prop, NULL, "dupon");
 	RNA_def_property_range(prop, 1, MAXFRAME);
 	RNA_def_property_ui_range(prop, 1, 1500, 1, -1);
-	RNA_def_property_ui_text(prop, "Dupli Frames On", "Number of frames to use between DupOff frames");
+	RNA_def_property_ui_text(prop, "Instance Frames On", "Number of frames to use between DupOff frames");
 	RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_Object_internal_update");
 
-	prop = RNA_def_property(srna, "dupli_frames_off", PROP_INT, PROP_NONE | PROP_UNIT_TIME);
+	prop = RNA_def_property(srna, "instance_frames_off", PROP_INT, PROP_NONE | PROP_UNIT_TIME);
 	RNA_def_property_int_sdna(prop, NULL, "dupoff");
 	RNA_def_property_range(prop, 0, MAXFRAME);
 	RNA_def_property_ui_range(prop, 0, 1500, 1, -1);
-	RNA_def_property_ui_text(prop, "Dupli Frames Off", "Recurring frames to exclude from the Dupliframes");
+	RNA_def_property_ui_text(prop, "Instance Frames Off", "Recurring frames to exclude from the Dupliframes");
 	RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_Object_internal_update");
 
-	prop = RNA_def_property(srna, "is_duplicator", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "is_instancer", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "transflag", OB_DUPLI);
 	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
 
@@ -2794,7 +2795,7 @@ static void rna_def_object(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Dynamic Topology Sculpting", NULL);
 
 	/* Base Settings */
-	prop = RNA_def_property(srna, "is_from_duplicator", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "is_from_instancer", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "base_flag", BASE_FROMDUPLI);
 	RNA_def_property_ui_text(prop, "Base from Duplicator", "Object comes from a duplicator");
 	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
diff --git a/source/blender/makesrna/intern/rna_object_force.c b/source/blender/makesrna/intern/rna_object_force.c
index e1090a3ded5..a58719085b9 100644
--- a/source/blender/makesrna/intern/rna_object_force.c
+++ b/source/blender/makesrna/intern/rna_object_force.c
@@ -994,8 +994,9 @@ static void rna_def_effector_weight(BlenderRNA *brna)
 	RNA_def_property_update(prop, 0, "rna_EffectorWeight_update");
 
 	/* General */
-	prop = RNA_def_property(srna, "group", PROP_POINTER, PROP_NONE);
+	prop = RNA_def_property(srna, "collection", PROP_POINTER, PROP_NONE);
 	RNA_def_property_struct_type(prop, "Collection");
+	RNA_def_property_pointer_sdna(prop, NULL, "group");
 	RNA_def_property_flag(prop, PROP_EDITABLE);
 	RNA_def_property_ui_text(prop, "Effector Collection", "Limit effectors to this collection");
 	RNA_def_property_update(prop, 0, "rna_EffectorWeight_dependency_update");
@@ -1781,8 +1782,9 @@ static void rna_def_softbody(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Self Collision", "Enable naive vertex ball self collision");
 	RNA_def_property_update(prop, 0, "rna_softbody_update");
 
-	prop = RNA_def_property(srna, "collision_group", PROP_POINTER, PROP_NONE);
+	prop = RNA_def_property(srna, "collision_collection", PROP_POINTER, PROP_NONE);
 	RNA_def_property_struct_type(prop, "Collection");
+	RNA_def_property_pointer_sdna(prop, NULL, "collision_group");
 	RNA_def_property_flag(prop, PROP_EDITABLE);
 	RNA_def_property_ui_text(prop, "Collision Collection", "Limit colliders to this collection");
 	RNA_def_property_update(prop, 0, "rna_softbody_dependency_update");
diff --git a/source/blender/makesrna/intern/rna_particle.c b/source/blender/makesrna/intern/rna_particle.c
index 1abba3979f0..4e9b738bfbd 100644
--- a/source/blender/makesrna/intern/rna_particle.c
+++ b/source/blender/makesrna/intern/rna_particle.c
@@ -1562,7 +1562,7 @@ static void rna_def_particle_dupliweight(BlenderRNA *brna)
 	PropertyRNA *prop;
 
 	srna = RNA_def_struct(brna, "ParticleDupliWeight", NULL);
-	RNA_def_struct_ui_text(srna, "Particle Dupliobject Weight", "Weight of a particle dupliobject in a group");
+	RNA_def_struct_ui_text(srna, "Particle Dupliobject Weight", "Weight of a particle dupliobject in a collection");
 	RNA_def_struct_sdna(srna, "ParticleDupliWeight");
 
 	prop = RNA_def_property(srna, "name", PROP_STRING, PROP_NONE);
@@ -2324,29 +2324,29 @@ static void rna_def_particle_settings(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Number", "Show particle number");
 	RNA_def_property_update(prop, 0, "rna_Particle_redo");
 
-	prop = RNA_def_property(srna, "use_group_pick_random", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "use_collection_pick_random", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "draw", PART_DRAW_RAND_GR);
-	RNA_def_property_ui_text(prop, "Pick Random", "Pick objects from group randomly");
+	RNA_def_property_ui_text(prop, "Pick Random", "Pick objects from collection randomly");
 	RNA_def_property_update(prop, 0, "rna_Particle_redo");
 
-	prop = RNA_def_property(srna, "use_group_count", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "use_collection_count", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "draw", PART_DRAW_COUNT_GR);
 	RNA_def_property_ui_text(prop, "Use Count", "Use object multiple times in the same collection");
 	RNA_def_property_update(prop, 0, "rna_Particle_redo_count");
 
-	prop = RNA_def_property(srna, "use_global_dupli", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "use_global_instance", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "draw", PART_DRAW_GLOBAL_OB);
 	RNA_def_property_ui_text(prop, "Global", "Use object's global coordinates for duplication");
 	RNA_def_property_update(prop, 0, "rna_Particle_redo");
 
-	prop = RNA_def_property(srna, "use_rotation_dupli", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "use_rotation_instance", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "draw", PART_DRAW_ROTATE_OB);
 	RNA_def_property_ui_text(prop, "Rotation",
 	                         "Use object's rotation for duplication (global x-axis is aligned "
 	                         "particle rotation axis)");
 	RNA_def_property_update(prop, 0, "rna_Particle_redo");
 
-	prop = RNA_def_property(srna, "use_scale_dupli", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "use_scale_instance", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_negative_sdna(prop, NULL, "draw", PART_DRAW_NO_SCALE_OB);
 	RNA_def_property_ui_text(prop, "Scale", "Use object's scale for duplication");
 	RNA_def_property_update(prop, 0, "rna_Particle_redo");
@@ -2361,9 +2361,9 @@ static void rna_def_particle_settings(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Speed", "Multiply line length by particle speed");
 	RNA_def_property_update(prop, 0, "rna_Particle_redo");
 
-	prop = RNA_def_property(srna, "use_whole_group", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "use_whole_collection", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "draw", PART_DRAW_WHOLE_GR);
-	RNA_def_property_ui_text(prop, "Whole Group", "Use whole group at once");
+	RNA_def_property_ui_text(prop, "Whole Collection", "Use whole collection at once");
 	RNA_def_property_update(prop, 0, "rna_Particle_redo");
 
 	prop = RNA_def_property(srna, "use_strand_primitive", PROP_BOOLEAN, PROP_NONE);
@@ -2780,8 +2780,9 @@ static void rna_def_particle_settings(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Random Size", "Give the particle size a random variation");
 	RNA_def_property_update(prop, 0, "rna_Particle_reset");
 
-	prop = RNA_def_property(srna, "collision_group", PROP_POINTER, PROP_NONE);
+	prop = RNA_def_property(srna, "collision_collection", PROP_POINTER, PROP_NONE);
 	RNA_def_property_struct_type(prop, "Collection");
+	RNA_def_property_pointer_sdna(prop, NULL, "collision_group");
 	RNA_def_property_flag(prop, PROP_EDITABLE);
 	RNA_def_property_ui_text(prop, "Collision Collection", "Limit colliders to this collection");
 	RNA_def_property_update(prop, 0, "rna_Particle_reset_dependency");
@@ -3092,35 +3093,35 @@ static void rna_def_particle_settings(BlenderRNA *brna)
 	                               "(must use same subsurf level for viewport and render for correct results)");
 	RNA_def_property_update(prop, 0, "rna_Particle_change_type");
 
-	/* draw objects & groups */
-	prop = RNA_def_property(srna, "dupli_group", PROP_POINTER, PROP_NONE);
+	/* draw objects & collections */
+	prop = RNA_def_property(srna, "instance_collection", PROP_POINTER, PROP_NONE);
 	RNA_def_property_pointer_sdna(prop, NULL, "dup_group");
 	RNA_def_property_struct_type(prop, "Collection");
 	RNA_def_property_flag(prop, PROP_EDITABLE);
 	RNA_def_property_ui_text(prop, "Dupli Collection", "Show Objects in this collection in place of particles");
 	RNA_def_property_update(prop, 0, "rna_Particle_redo_count");
 
-	prop = RNA_def_property(srna, "dupli_weights", PROP_COLLECTION, PROP_NONE);
+	prop = RNA_def_property(srna, "instance_weights", PROP_COLLECTION, PROP_NONE);
 	RNA_def_property_collection_sdna(prop, NULL, "dupliweights", NULL);
 	RNA_def_property_struct_type(prop, "ParticleDupliWeight");
-	RNA_def_property_ui_text(prop, "Dupli Group Weights", "Weights for all of the objects in the dupli group");
+	RNA_def_property_ui_text(prop, "Dupli Collection Weights", "Weights for all of the objects in the dupli collection");
 
-	prop = RNA_def_property(srna, "active_dupliweight", PROP_POINTER, PROP_NONE);
+	prop = RNA_def_property(srna, "active_instanceweight", PROP_POINTER, PROP_NONE);
 	RNA_def_property_struct_type(prop, "ParticleDupliWeight");
 	RNA_def_property_pointer_funcs(prop, "rna_ParticleDupliWeight_active_get", NULL, NULL, NULL);
 	RNA_def_property_ui_text(prop, "Active Dupli Object", "");
 
-	prop = RNA_def_property(srna, "active_dupliweight_index", PROP_INT, PROP_UNSIGNED);
+	prop = RNA_def_property(srna, "active_instanceweight_index", PROP_INT, PROP_UNSIGNED);
 	RNA_def_property_int_funcs(prop, "rna_ParticleDupliWeight_active_index_get",
 	                           "rna_ParticleDupliWeight_active_index_set",
 	                           "rna_ParticleDupliWeight_active_index_range");
 	RNA_def_property_ui_text(prop, "Active Dupli Object Index", "");
 
-	prop = RNA_def_property(srna, "dupli_object", PROP_POINTER, PROP_NONE);
+	prop = RNA_def_property(srna, "instance_object", PROP_POINTER, PROP_NONE);
 	RNA_def_property_pointer_sdna(prop, NULL, "dup_ob");
 	RNA_def_property_struct_type(prop, "Object");
 	RNA_def_property_flag(prop, PROP_EDITABLE);
-	RNA_def_property_ui_text(prop, "Dupli Object", "Show this Object in place of particles");
+	RNA_def_property_ui_text(prop, "Instance Object", "Show this Object in place of particles");
 	RNA_def_property_update(prop, 0, "rna_Particle_redo_dependency");
 
 	prop = RNA_def_property(srna, "billboard_object", PROP_POINTER, PROP_NONE);
diff --git a/source/blender/makesrna/intern/rna_rigidbody.c b/source/blender/makesrna/intern/rna_rigidbody.c
index 4a36e2d00b7..e0d0ae57b30 100644
--- a/source/blender/makesrna/intern/rna_rigidbody.c
+++ b/source/blender/makesrna/intern/rna_rigidbody.c
@@ -267,7 +267,7 @@ static void rna_RigidBodyOb_collision_margin_set(PointerRNA *ptr, float value)
 #endif
 }
 
-static void rna_RigidBodyOb_collision_groups_set(PointerRNA *ptr, const bool *values)
+static void rna_RigidBodyOb_collision_collections_set(PointerRNA *ptr, const bool *values)
 {
 	RigidBodyOb *rbo = (RigidBodyOb *)ptr->data;
 	int i;
@@ -768,8 +768,9 @@ static void rna_def_rigidbody_world(BlenderRNA *brna)
 	RNA_def_struct_path_func(srna, "rna_RigidBodyWorld_path");
 
 	/* groups */
-	prop = RNA_def_property(srna, "group", PROP_POINTER, PROP_NONE);
+	prop = RNA_def_property(srna, "collection", PROP_POINTER, PROP_NONE);
 	RNA_def_property_struct_type(prop, "Collection");
+	RNA_def_property_pointer_sdna(prop, NULL, "group");
 	RNA_def_property_flag(prop, PROP_EDITABLE | PROP_ID_SELF_CHECK);
 	RNA_def_property_ui_text(prop, "Collection", "Collection containing objects participating in this simulation");
 	RNA_def_property_update(prop, NC_SCENE, "rna_RigidBodyWorld_reset");
@@ -1024,10 +1025,10 @@ static void rna_def_rigidbody_object(BlenderRNA *brna)
 	                         "(best results when non-zero)");
 	RNA_def_property_update(prop, NC_OBJECT | ND_POINTCACHE, "rna_RigidBodyOb_shape_reset");
 
-	prop = RNA_def_property(srna, "collision_groups", PROP_BOOLEAN, PROP_LAYER_MEMBER);
+	prop = RNA_def_property(srna, "collision_collections", PROP_BOOLEAN, PROP_LAYER_MEMBER);
 	RNA_def_property_boolean_sdna(prop, NULL, "col_groups", 1);
 	RNA_def_property_array(prop, 20);
-	RNA_def_property_boolean_funcs(prop, NULL, "rna_RigidBodyOb_collision_groups_set");
+	RNA_def_property_boolean_funcs(prop, NULL, "rna_RigidBodyOb_collision_collections_set");
 	RNA_def_property_ui_text(prop, "Collision Collections", "Collision collections rigid body belongs to");
 	RNA_def_property_update(prop, NC_OBJECT | ND_POINTCACHE, "rna_RigidBodyOb_reset");
 	RNA_def_property_flag(prop, PROP_LIB_EXCEPTION);
diff --git a/source/blender/makesrna/intern/rna_scene.c b/source/blender/makesrna/intern/rna_scene.c
index 9d943dca9ec..d6d597aac73 100644
--- a/source/blender/makesrna/intern/rna_scene.c
+++ b/source/blender/makesrna/intern/rna_scene.c
@@ -3384,7 +3384,7 @@ void rna_def_freestyle_settings(BlenderRNA *brna)
 		{0, NULL, 0, NULL, NULL}
 	};
 
-	static const EnumPropertyItem group_negation_items[] = {
+	static const EnumPropertyItem collection_negation_items[] = {
 		{0, "INCLUSIVE", 0, "Inclusive", "Select feature edges belonging to some object in the group"},
 		{FREESTYLE_LINESET_GR_NOT, "EXCLUSIVE", 0, "Exclusive",
 		                           "Select feature edges not belonging to any object in the group"},
@@ -3458,9 +3458,9 @@ void rna_def_freestyle_settings(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Selection by Edge Types", "Select feature edges based on edge types");
 	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, "rna_Scene_freestyle_update");
 
-	prop = RNA_def_property(srna, "select_by_group", PROP_BOOLEAN, PROP_NONE);
+	prop = RNA_def_property(srna, "select_by_collection", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "selection", FREESTYLE_SEL_GROUP);
-	RNA_def_property_ui_text(prop, "Selection by Group", "Select feature edges based on a group of objects");
+	RNA_def_property_ui_text(prop, "Selection by Collection", "Select feature edges based on a collection of objects");
 	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, "rna_Scene_freestyle_update");
 
 	prop = RNA_def_property(srna, "select_by_image_border", PROP_BOOLEAN, PROP_NONE);
@@ -3488,16 +3488,16 @@ void rna_def_freestyle_settings(BlenderRNA *brna)
 	                         "Specify a logical combination of selection conditions on feature edge types");
 	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, "rna_Scene_freestyle_update");
 
-	prop = RNA_def_property(srna, "group", PROP_POINTER, PROP_NONE);
+	prop = RNA_def_property(srna, "collection", PROP_POINTER, PROP_NONE);
 	RNA_def_property_pointer_sdna(prop, NULL, "group");
 	RNA_def_property_struct_type(prop, "Collection");
 	RNA_def_property_flag(prop, PROP_EDITABLE);
 	RNA_def_property_ui_text(prop, "Collection", "A collection of objects based on which feature edges are selected");
 	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, "rna_Scene_freestyle_update");
 
-	prop = RNA_def_property(srna, "group_negation", PROP_ENUM, PROP_NONE);
+	prop = RNA_def_property(srna, "collection_negation", PROP_ENUM, PROP_NONE);
 	RNA_def_property_enum_bitflag_sdna(prop, NULL, "flags");
-	RNA_def_property_enum_items(prop, group_negation_items);
+	RNA_def_property_enum_items(prop, collection_negation_items);
 	RNA_def_property_ui_text(prop, "Collection Negation",
 	                         "Specify either inclusion or exclusion of feature edges belonging to a collection of objects");
 	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, "rna_Scene_freestyle_update");
diff --git a/source/blender/makesrna/intern/rna_smoke.c b/source/blender/makesrna/intern/rna_smoke.c
index 591798d508a..8e375c3645e 100644
--- a/source/blender/makesrna/intern/rna_smoke.c
+++ b/source/blender/makesrna/intern/rna_smoke.c
@@ -589,21 +589,21 @@ static void rna_def_smoke_domain_settings(BlenderRNA *brna)
 	                         "How much heat affects smoke motion (higher value results in faster rising smoke)");
 	RNA_def_property_update(prop, NC_OBJECT | ND_MODIFIER, "rna_Smoke_resetCache");
 
-	prop = RNA_def_property(srna, "collision_group", PROP_POINTER, PROP_NONE);
+	prop = RNA_def_property(srna, "collision_collection", PROP_POINTER, PROP_NONE);
 	RNA_def_property_pointer_sdna(prop, NULL, "coll_group");
 	RNA_def_property_struct_type(prop, "Collection");
 	RNA_def_property_flag(prop, PROP_EDITABLE);
 	RNA_def_property_ui_text(prop, "Collision Collection", "Limit collisions to this collection");
 	RNA_def_property_update(prop, NC_OBJECT | ND_MODIFIER, "rna_Smoke_reset_dependency");
 
-	prop = RNA_def_property(srna, "fluid_group", PROP_POINTER, PROP_NONE);
+	prop = RNA_def_property(srna, "fluid_collection", PROP_POINTER, PROP_NONE);
 	RNA_def_property_pointer_sdna(prop, NULL, "fluid_group");
 	RNA_def_property_struct_type(prop, "Collection");
 	RNA_def_property_flag(prop, PROP_EDITABLE);
 	RNA_def_property_ui_text(prop, "Fluid Collection", "Limit fluid objects to this collection");
 	RNA_def_property_update(prop, NC_OBJECT | ND_MODIFIER, "rna_Smoke_reset_dependency");
 
-	prop = RNA_def_property(srna, "effector_group", PROP_POINTER, PROP_NONE);
+	prop = RNA_def_property(srna, "effector_collection", PROP_POINTER, PROP_NONE);
 	RNA_def_property_pointer_sdna(prop, NULL, "eff_group");
 	RNA_def_property_struct_type(prop, "Collection");
 	RNA_def_property_flag(prop, PROP_EDITABLE);
diff --git a/source/blender/makesrna/intern/rna_space.c b/source/blender/makesrna/intern/rna_space.c
index d8db7b30de5..981aac18894 100644
--- a/source/blender/makesrna/intern/rna_space.c
+++ b/source/blender/makesrna/intern/rna_space.c
@@ -4330,7 +4330,7 @@ static void rna_def_fileselect_params(BlenderRNA *brna)
 		{FILTER_ID_CF, "CACHEFILE", ICON_FILE, "Cache Files", "Show/hide Cache File data-blocks"},
 		{FILTER_ID_CU, "CURVE", ICON_CURVE_DATA, "Curves", "Show/hide Curve data-blocks"},
 		{FILTER_ID_GD, "GREASE_PENCIL", ICON_GREASEPENCIL, "Grease Pencil", "Show/hide Grease pencil data-blocks"},
-		{FILTER_ID_GR, "GROUP", ICON_GROUP, "Groups", "Show/hide Group data-blocks"},
+		{FILTER_ID_GR, "GROUP", ICON_GROUP, "Collections", "Show/hide Collection data-blocks"},
 		{FILTER_ID_IM, "IMAGE", ICON_IMAGE_DATA, "Images", "Show/hide Image data-blocks"},
 		{FILTER_ID_LA, "LIGHT", ICON_LIGHT_DATA, "Lights", "Show/hide Light data-blocks"},
 		{FILTER_ID_LS, "LINESTYLE", ICON_LINE_DATA,
@@ -4365,7 +4365,7 @@ static void rna_def_fileselect_params(BlenderRNA *brna)
 	    {FILTER_ID_AC,
 	     "ANIMATION", ICON_ANIM_DATA, "Animations", "Show/hide animation data"},
 		{FILTER_ID_OB | FILTER_ID_GR,
-	     "OBJECT", ICON_GROUP, "Objects & Groups", "Show/hide objects and groups"},
+	     "OBJECT", ICON_GROUP, "Objects & Collections", "Show/hide objects and groups"},
 		{FILTER_ID_AR | FILTER_ID_CU | FILTER_ID_LT | FILTER_ID_MB | FILTER_ID_ME,
 	     "GEOMETRY", ICON_MESH_DATA, "Geometry", "Show/hide meshes, curves, lattice, armatures and metaballs data"},
 		{FILTER_ID_LS | FILTER_ID_MA | FILTER_ID_NT | FILTER_ID_TE,