5 files changed, 45 insertions, 4 deletions
diff --git a/doc/classes/ProjectSettings.xml b/doc/classes/ProjectSettings.xml
index 4d3e838bb1..6a6f53ac60 100644
--- a/doc/classes/ProjectSettings.xml
+++ b/doc/classes/ProjectSettings.xml
@@ -2727,6 +2727,10 @@
 		<member name="rendering/rendering_device/driver.windows" type="String" setter="" getter="">
 			Windows override for [member rendering/rendering_device/driver].
 		</member>
+		<member name="rendering/rendering_device/pipeline_cache/enable" type="bool" setter="" getter="" default="true">
+			Enable the pipeline cache that is saved to disk if the graphics API supports it.
+			[b]Note:[/b] This property is unable to control the pipeline caching the GPU driver itself does. Only turn this off along with deleting the contents of the driver's cache if you wish to simulate the experience a user will get when starting the game for the first time.
+		</member>
 		<member name="rendering/rendering_device/pipeline_cache/save_chunk_size_mb" type="float" setter="" getter="" default="3.0">
 			Determines at which interval pipeline cache is saved to disk. The lower the value, the more often it is saved.
 		</member>
diff --git a/doc/classes/SkeletonProfile.xml b/doc/classes/SkeletonProfile.xml
index 3ed29668e4..b5bb4e3639 100644
--- a/doc/classes/SkeletonProfile.xml
+++ b/doc/classes/SkeletonProfile.xml
@@ -83,6 +83,14 @@
 				Returns the texture of the group at [param group_idx] that will be the drawing group background image in the [BoneMap] editor.
 			</description>
 		</method>
+		<method name="is_required" qualifiers="const">
+			<return type="bool" />
+			<param index="0" name="bone_idx" type="int" />
+			<description>
+				Returns whether the bone at [param bone_idx] is required for retargeting.
+				This value is used by the bone map editor. If this method returns [code]true[/code], and no bone is assigned, the handle color will be red on the bone map editor.
+			</description>
+		</method>
 		<method name="set_bone_name">
 			<return type="void" />
 			<param index="0" name="bone_idx" type="int" />
@@ -141,6 +149,14 @@
 				Sets the reference pose transform for bone [param bone_idx].
 			</description>
 		</method>
+		<method name="set_required">
+			<return type="void" />
+			<param index="0" name="bone_idx" type="int" />
+			<param index="1" name="required" type="bool" />
+			<description>
+				Sets the required status for bone [param bone_idx] to [param required].
+			</description>
+		</method>
 		<method name="set_tail_direction">
 			<return type="void" />
 			<param index="0" name="bone_idx" type="int" />
diff --git a/doc/classes/TextServer.xml b/doc/classes/TextServer.xml
index cd70316aa9..c0cd7f79e7 100644
--- a/doc/classes/TextServer.xml
+++ b/doc/classes/TextServer.xml
@@ -1736,6 +1736,16 @@
 				[b]Note:[/b] The result may be longer or shorter than the original.
 			</description>
 		</method>
+		<method name="string_to_title" qualifiers="const">
+			<return type="String" />
+			<param index="0" name="string" type="String" />
+			<param index="1" name="language" type="String" default="&quot;&quot;" />
+			<description>
+				Returns the string converted to title case.
+				[b]Note:[/b] Casing is locale dependent and context sensitive if server support [constant FEATURE_CONTEXT_SENSITIVE_CASE_CONVERSION] feature (supported by [TextServerAdvanced]).
+				[b]Note:[/b] The result may be longer or shorter than the original.
+			</description>
+		</method>
 		<method name="string_to_upper" qualifiers="const">
 			<return type="String" />
 			<param index="0" name="string" type="String" />
diff --git a/doc/classes/TextServerExtension.xml b/doc/classes/TextServerExtension.xml
index 9b7fc42ddf..06a0daece6 100644
--- a/doc/classes/TextServerExtension.xml
+++ b/doc/classes/TextServerExtension.xml
@@ -1913,6 +1913,15 @@
 				Returns the string converted to lowercase.
 			</description>
 		</method>
+		<method name="_string_to_title" qualifiers="virtual const">
+			<return type="String" />
+			<param index="0" name="string" type="String" />
+			<param index="1" name="language" type="String" />
+			<description>
+				[b]Optional.[/b]
+				Returns the string converted to title case.
+			</description>
+		</method>
 		<method name="_string_to_upper" qualifiers="virtual const">
 			<return type="String" />
 			<param index="0" name="string" type="String" />
diff --git a/doc/classes/UndoRedo.xml b/doc/classes/UndoRedo.xml
index 3d36eafb08..e197f7748c 100644
--- a/doc/classes/UndoRedo.xml
+++ b/doc/classes/UndoRedo.xml
@@ -112,7 +112,8 @@
 			<return type="void" />
 			<param index="0" name="object" type="Object" />
 			<description>
-				Register a reference for "do" that will be erased if the "do" history is lost. This is useful mostly for new nodes created for the "do" call. Do not use for resources.
+				Register a reference to an object that will be erased if the "do" history is deleted. This is useful for objects added by the "do" action and removed by the "undo" action.
+				When the "do" history is deleted, if the object is a [RefCounted], it will be unreferenced. Otherwise, it will be freed. Do not use for resources.
 				[codeblock]
 				var node = Node2D.new()
 				undo_redo.create_action("Add node")
@@ -143,7 +144,8 @@
 			<return type="void" />
 			<param index="0" name="object" type="Object" />
 			<description>
-				Register a reference for "undo" that will be erased if the "undo" history is lost. This is useful mostly for nodes removed with the "do" call (not the "undo" call!).
+				Register a reference to an object that will be erased if the "undo" history is deleted. This is useful for objects added by the "undo" action and removed by the "do" action.
+				When the "undo" history is deleted, if the object is a [RefCounted], it will be unreferenced. Otherwise, it will be freed. Do not use for resources.
 				[codeblock]
 				var node = $Node2D
 				undo_redo.create_action("Remove node")
@@ -272,10 +274,10 @@
 			Makes "do"/"undo" operations stay in separate actions.
 		</constant>
 		<constant name="MERGE_ENDS" value="1" enum="MergeMode">
-			Makes so that the action's "undo" operations are from the first action created and the "do" operations are from the last subsequent action with the same name.
+			Merges this action with the previous one if they have the same name. Keeps only the first action's "undo" operations and the last action's "do" operations. Useful for sequential changes to a single value.
 		</constant>
 		<constant name="MERGE_ALL" value="2" enum="MergeMode">
-			Makes subsequent actions with the same name be merged into one.
+			Merges this action with the previous one if they have the same name.
 		</constant>
 	</constants>
 </class>