20 files changed, 152 insertions, 23 deletions
diff --git a/doc/classes/@GlobalScope.xml b/doc/classes/@GlobalScope.xml
index 7acec9e63b..fbeda641ad 100644
--- a/doc/classes/@GlobalScope.xml
+++ b/doc/classes/@GlobalScope.xml
@@ -1222,6 +1222,8 @@
 		<member name="VisualScriptCustomNodes" type="VisualScriptCustomNodes" setter="" getter="">
 			The [VisualScriptCustomNodes] singleton.
 		</member>
+		<member name="WorkerThreadPool" type="WorkerThreadPool" setter="" getter="">
+		</member>
 		<member name="XRServer" type="XRServer" setter="" getter="">
 			The [XRServer] singleton.
 		</member>
diff --git a/doc/classes/AudioServer.xml b/doc/classes/AudioServer.xml
index 1e076654fb..28dcd2794e 100644
--- a/doc/classes/AudioServer.xml
+++ b/doc/classes/AudioServer.xml
@@ -275,6 +275,12 @@
 				Sets the volume of the bus at index [code]bus_idx[/code] to [code]volume_db[/code].
 			</description>
 		</method>
+		<method name="set_enable_tagging_used_audio_streams">
+			<return type="void" />
+			<argument index="0" name="enable" type="bool" />
+			<description>
+			</description>
+		</method>
 		<method name="swap_bus_effects">
 			<return type="void" />
 			<argument index="0" name="bus_idx" type="int" />
diff --git a/doc/classes/AudioStream.xml b/doc/classes/AudioStream.xml
index 6343da6eed..68f64505d0 100644
--- a/doc/classes/AudioStream.xml
+++ b/doc/classes/AudioStream.xml
@@ -13,6 +13,16 @@
 		<link title="Audio Spectrum Demo">https://godotengine.org/asset-library/asset/528</link>
 	</tutorials>
 	<methods>
+		<method name="_get_beat_count" qualifiers="virtual const">
+			<return type="int" />
+			<description>
+			</description>
+		</method>
+		<method name="_get_bpm" qualifiers="virtual const">
+			<return type="float" />
+			<description>
+			</description>
+		</method>
 		<method name="_get_length" qualifiers="virtual const">
 			<return type="float" />
 			<description>
@@ -23,7 +33,7 @@
 			<description>
 			</description>
 		</method>
-		<method name="_instance_playback" qualifiers="virtual const">
+		<method name="_instantiate_playback" qualifiers="virtual const">
 			<return type="AudioStreamPlayback" />
 			<description>
 			</description>
@@ -39,10 +49,10 @@
 				Returns the length of the audio stream in seconds.
 			</description>
 		</method>
-		<method name="instance_playback">
+		<method name="instantiate_playback">
 			<return type="AudioStreamPlayback" />
 			<description>
-				Returns an AudioStreamPlayback. Useful for when you want to extend `_instance_playback` but call `instance_playback` from an internally held AudioStream subresource. An example of this can be found in the source files for `AudioStreamRandomPitch::instance_playback`.
+				Returns an AudioStreamPlayback. Useful for when you want to extend [method _instantiate_playback] but call [method instantiate_playback] from an internally held AudioStream subresource. An example of this can be found in the source files for [code]AudioStreamRandomPitch::instantiate_playback[/code].
 			</description>
 		</method>
 		<method name="is_monophonic" qualifiers="const">
diff --git a/doc/classes/AudioStreamPlayback.xml b/doc/classes/AudioStreamPlayback.xml
index 1909c4b621..d3d97e0c8a 100644
--- a/doc/classes/AudioStreamPlayback.xml
+++ b/doc/classes/AudioStreamPlayback.xml
@@ -50,5 +50,10 @@
 			<description>
 			</description>
 		</method>
+		<method name="_tag_used_streams" qualifiers="virtual">
+			<return type="void" />
+			<description>
+			</description>
+		</method>
 	</methods>
 </class>
diff --git a/doc/classes/BaseMaterial3D.xml b/doc/classes/BaseMaterial3D.xml
index d3ae85101d..b3cea7217e 100644
--- a/doc/classes/BaseMaterial3D.xml
+++ b/doc/classes/BaseMaterial3D.xml
@@ -374,10 +374,10 @@
 			[b]Note:[/b] This is only effective for objects whose geometry is point-based rather than triangle-based. See also [member point_size].
 		</member>
 		<member name="uv1_offset" type="Vector3" setter="set_uv1_offset" getter="get_uv1_offset" default="Vector3(0, 0, 0)">
-			How much to offset the [code]UV[/code] coordinates. This amount will be added to [code]UV[/code] in the vertex function. This can be used to offset a texture.
+			How much to offset the [code]UV[/code] coordinates. This amount will be added to [code]UV[/code] in the vertex function. This can be used to offset a texture. The Z component is used when [member uv1_triplanar] is enabled, but it is not used anywhere else.
 		</member>
 		<member name="uv1_scale" type="Vector3" setter="set_uv1_scale" getter="get_uv1_scale" default="Vector3(1, 1, 1)">
-			How much to scale the [code]UV[/code] coordinates. This is multiplied by [code]UV[/code] in the vertex function.
+			How much to scale the [code]UV[/code] coordinates. This is multiplied by [code]UV[/code] in the vertex function. The Z component is used when [member uv1_triplanar] is enabled, but it is not used anywhere else.
 		</member>
 		<member name="uv1_triplanar" type="bool" setter="set_flag" getter="get_flag" default="false">
 			If [code]true[/code], instead of using [code]UV[/code] textures will use a triplanar texture lookup to determine how to apply textures. Triplanar uses the orientation of the object's surface to blend between texture coordinates. It reads from the source texture 3 times, once for each axis and then blends between the results based on how closely the pixel aligns with each axis. This is often used for natural features to get a realistic blend of materials. Because triplanar texturing requires many more texture reads per-pixel it is much slower than normal UV texturing. Additionally, because it is blending the texture between the three axes, it is unsuitable when you are trying to achieve crisp texturing.
@@ -389,10 +389,10 @@
 			If [code]true[/code], triplanar mapping for [code]UV[/code] is calculated in world space rather than object local space. See also [member uv1_triplanar].
 		</member>
 		<member name="uv2_offset" type="Vector3" setter="set_uv2_offset" getter="get_uv2_offset" default="Vector3(0, 0, 0)">
-			How much to offset the [code]UV2[/code] coordinates. This amount will be added to [code]UV2[/code] in the vertex function. This can be used to offset a texture.
+			How much to offset the [code]UV2[/code] coordinates. This amount will be added to [code]UV2[/code] in the vertex function. This can be used to offset a texture. The Z component is used when [member uv2_triplanar] is enabled, but it is not used anywhere else.
 		</member>
 		<member name="uv2_scale" type="Vector3" setter="set_uv2_scale" getter="get_uv2_scale" default="Vector3(1, 1, 1)">
-			How much to scale the [code]UV2[/code] coordinates. This is multiplied by [code]UV2[/code] in the vertex function.
+			How much to scale the [code]UV2[/code] coordinates. This is multiplied by [code]UV2[/code] in the vertex function. The Z component is used when [member uv2_triplanar] is enabled, but it is not used anywhere else.
 		</member>
 		<member name="uv2_triplanar" type="bool" setter="set_flag" getter="get_flag" default="false">
 			If [code]true[/code], instead of using [code]UV2[/code] textures will use a triplanar texture lookup to determine how to apply textures. Triplanar uses the orientation of the object's surface to blend between texture coordinates. It reads from the source texture 3 times, once for each axis and then blends between the results based on how closely the pixel aligns with each axis. This is often used for natural features to get a realistic blend of materials. Because triplanar texturing requires many more texture reads per-pixel it is much slower than normal UV texturing. Additionally, because it is blending the texture between the three axes, it is unsuitable when you are trying to achieve crisp texturing.
diff --git a/doc/classes/Font.xml b/doc/classes/Font.xml
index e95f444d55..6377c829e1 100644
--- a/doc/classes/Font.xml
+++ b/doc/classes/Font.xml
@@ -226,9 +226,12 @@
 			<argument index="5" name="direction" type="int" enum="TextServer.Direction" default="0" />
 			<argument index="6" name="orientation" type="int" enum="TextServer.Orientation" default="0" />
 			<description>
-				Returns the size of a bounding box of a string, taking kerning and advance into account.
+				Returns the size of a bounding box of a single-line string, taking kerning and advance into account. See also [method get_multiline_string_size] and [method draw_string].
+				For example, to get the string size as displayed by a single-line Label, use:
+				[codeblock]
+				var string_size = $Label.get_theme_font("font").get_string_size($Label.text, HORIZONTAL_ALIGNMENT_LEFT, -1, $Label.get_theme_font_size("font_size"))
+				[/codeblock]
 				[b]Note:[/b] Real height of the string is context-dependent and can be significantly different from the value returned by [method get_height].
-				See also [method draw_string].
 			</description>
 		</method>
 		<method name="get_supported_chars" qualifiers="const">
diff --git a/doc/classes/MultiplayerPeerExtension.xml b/doc/classes/MultiplayerPeerExtension.xml
index bd11c76039..f837171e2f 100644
--- a/doc/classes/MultiplayerPeerExtension.xml
+++ b/doc/classes/MultiplayerPeerExtension.xml
@@ -41,6 +41,12 @@
 				Called when the ID of the [MultiplayerPeer] who sent the most recent packet is requested (see [method MultiplayerPeer.get_packet_peer]).
 			</description>
 		</method>
+		<method name="_get_packet_script" qualifiers="virtual">
+			<return type="PackedByteArray" />
+			<description>
+				Called when a packet needs to be received by the [MultiplayerAPI], if [method _get_packet] isn't implemented. Use this when extending this class via GDScript.
+			</description>
+		</method>
 		<method name="_get_transfer_channel" qualifiers="virtual const">
 			<return type="int" />
 			<description>
@@ -85,6 +91,13 @@
 				Called when a packet needs to be sent by the [MultiplayerAPI], with [code]p_buffer_size[/code] being the size of the binary [code]p_buffer[/code] in bytes.
 			</description>
 		</method>
+		<method name="_put_packet_script" qualifiers="virtual">
+			<return type="int" />
+			<argument index="0" name="p_buffer" type="PackedByteArray" />
+			<description>
+				Called when a packet needs to be sent by the [MultiplayerAPI], if [method _put_packet] isn't implemented. Use this when extending this class via GDScript.
+			</description>
+		</method>
 		<method name="_set_refuse_new_connections" qualifiers="virtual">
 			<return type="void" />
 			<argument index="0" name="p_enable" type="bool" />
diff --git a/doc/classes/Plane.xml b/doc/classes/Plane.xml
index 6fefcef0a1..32eb71f1c7 100644
--- a/doc/classes/Plane.xml
+++ b/doc/classes/Plane.xml
@@ -83,9 +83,9 @@
 		<method name="has_point" qualifiers="const">
 			<return type="bool" />
 			<argument index="0" name="point" type="Vector3" />
-			<argument index="1" name="epsilon" type="float" default="1e-05" />
+			<argument index="1" name="tolerance" type="float" default="1e-05" />
 			<description>
-				Returns [code]true[/code] if [code]point[/code] is inside the plane. Comparison uses a custom minimum [code]epsilon[/code] threshold.
+				Returns [code]true[/code] if [code]point[/code] is inside the plane. Comparison uses a custom minimum [code]tolerance[/code] threshold.
 			</description>
 		</method>
 		<method name="intersect_3" qualifiers="const">
@@ -109,7 +109,7 @@
 			<argument index="0" name="from" type="Vector3" />
 			<argument index="1" name="to" type="Vector3" />
 			<description>
-				Returns the intersection point of a segment from position [code]begin[/code] to position [code]end[/code] with this plane. If no intersection is found, [code]null[/code] is returned.
+				Returns the intersection point of a segment from position [code]from[/code] to position [code]to[/code] with this plane. If no intersection is found, [code]null[/code] is returned.
 			</description>
 		</method>
 		<method name="is_equal_approx" qualifiers="const">
@@ -121,7 +121,7 @@
 		</method>
 		<method name="is_point_over" qualifiers="const">
 			<return type="bool" />
-			<argument index="0" name="plane" type="Vector3" />
+			<argument index="0" name="point" type="Vector3" />
 			<description>
 				Returns [code]true[/code] if [code]point[/code] is located above the plane.
 			</description>
diff --git a/doc/classes/ProjectSettings.xml b/doc/classes/ProjectSettings.xml
index 898d34b385..f7567133cd 100644
--- a/doc/classes/ProjectSettings.xml
+++ b/doc/classes/ProjectSettings.xml
@@ -1986,6 +1986,12 @@
 		</member>
 		<member name="rendering/vulkan/staging_buffer/texture_upload_region_size_px" type="int" setter="" getter="" default="64">
 		</member>
+		<member name="threading/worker_pool/low_priority_thread_ratio" type="float" setter="" getter="" default="0.3">
+		</member>
+		<member name="threading/worker_pool/max_threads" type="int" setter="" getter="" default="-1">
+		</member>
+		<member name="threading/worker_pool/use_system_threads_for_low_priority_tasks" type="bool" setter="" getter="" default="true">
+		</member>
 		<member name="xr/openxr/default_action_map" type="String" setter="" getter="" default="&quot;res://openxr_action_map.tres&quot;">
 			Action map configuration to load by default.
 		</member>
diff --git a/doc/classes/RenderingServer.xml b/doc/classes/RenderingServer.xml
index 6199c7b4e6..c2752d9f7b 100644
--- a/doc/classes/RenderingServer.xml
+++ b/doc/classes/RenderingServer.xml
@@ -2748,6 +2748,13 @@
 				Returns the parameters of a shader.
 			</description>
 		</method>
+		<method name="shader_set_code">
+			<return type="void" />
+			<argument index="0" name="shader" type="RID" />
+			<argument index="1" name="code" type="String" />
+			<description>
+			</description>
+		</method>
 		<method name="shader_set_default_texture_param">
 			<return type="void" />
 			<argument index="0" name="shader" type="RID" />
@@ -2759,6 +2766,13 @@
 				[b]Note:[/b] If the sampler array is used use [code]index[/code] to access the specified texture.
 			</description>
 		</method>
+		<method name="shader_set_path_hint">
+			<return type="void" />
+			<argument index="0" name="shader" type="RID" />
+			<argument index="1" name="path" type="String" />
+			<description>
+			</description>
+		</method>
 		<method name="skeleton_allocate_data">
 			<return type="void" />
 			<argument index="0" name="skeleton" type="RID" />
diff --git a/doc/classes/ResourceFormatLoader.xml b/doc/classes/ResourceFormatLoader.xml
index 36b64f5a86..fef94b5f3b 100644
--- a/doc/classes/ResourceFormatLoader.xml
+++ b/doc/classes/ResourceFormatLoader.xml
@@ -17,6 +17,12 @@
 			<description>
 			</description>
 		</method>
+		<method name="_get_classes_used" qualifiers="virtual const">
+			<return type="PackedStringArray" />
+			<argument index="0" name="path" type="String" />
+			<description>
+			</description>
+		</method>
 		<method name="_get_dependencies" qualifiers="virtual const">
 			<return type="PackedStringArray" />
 			<argument index="0" name="path" type="String" />
diff --git a/doc/classes/SceneTree.xml b/doc/classes/SceneTree.xml
index cf6ab977db..9982cc0d60 100644
--- a/doc/classes/SceneTree.xml
+++ b/doc/classes/SceneTree.xml
@@ -18,8 +18,7 @@
 			<argument index="0" name="group" type="StringName" />
 			<argument index="1" name="method" type="StringName" />
 			<description>
-				Calls [code]method[/code] on each member of the given group. You can pass arguments to [code]method[/code] by specifying them at the end of the method call.
-				[b]Note:[/b] Due to design limitations, [method call_group] will fail silently if one of the arguments is [code]null[/code].
+				Calls [code]method[/code] on each member of the given group. You can pass arguments to [code]method[/code] by specifying them at the end of the method call. If a node doesn't have the given method or the argument list does not match (either in count or in types), it will be skipped.
 				[b]Note:[/b] [method call_group] will call methods immediately on all members at once, which can cause stuttering if an expensive method is called on lots of members. To wait for one frame after [method call_group] was called, use [method call_group_flags] with the [constant GROUP_CALL_DEFERRED] flag.
 			</description>
 		</method>
@@ -29,12 +28,11 @@
 			<argument index="1" name="group" type="StringName" />
 			<argument index="2" name="method" type="StringName" />
 			<description>
-				Calls [code]method[/code] on each member of the given group, respecting the given [enum GroupCallFlags]. You can pass arguments to [code]method[/code] by specifying them at the end of the method call.
+				Calls [code]method[/code] on each member of the given group, respecting the given [enum GroupCallFlags]. You can pass arguments to [code]method[/code] by specifying them at the end of the method call. If a node doesn't have the given method or the argument list does not match (either in count or in types), it will be skipped.
 				[codeblock]
 				# Call the method in a deferred manner and in reverse order.
 				get_tree().call_group_flags(SceneTree.GROUP_CALL_DEFERRED | SceneTree.GROUP_CALL_REVERSE)
 				[/codeblock]
-				[b]Note:[/b] Due to design limitations, [method call_group_flags] will fail silently if one of the arguments is [code]null[/code].
 				[b]Note:[/b] Group call flags are used to control the method calling behavior. By default, methods will be called immediately in a way similar to [method call_group]. However, if the [constant GROUP_CALL_DEFERRED] flag is present in the [code]flags[/code] argument, methods will be called with a one-frame delay in a way similar to [method Object.set_deferred].
 			</description>
 		</method>
diff --git a/doc/classes/ShaderInclude.xml b/doc/classes/ShaderInclude.xml
new file mode 100644
index 0000000000..40072a933b
--- /dev/null
+++ b/doc/classes/ShaderInclude.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="ShaderInclude" inherits="Resource" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<members>
+		<member name="code" type="String" setter="set_code" getter="get_code" default="&quot;&quot;">
+		</member>
+	</members>
+</class>
diff --git a/doc/classes/WorkerThreadPool.xml b/doc/classes/WorkerThreadPool.xml
new file mode 100644
index 0000000000..22eabf9012
--- /dev/null
+++ b/doc/classes/WorkerThreadPool.xml
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="WorkerThreadPool" inherits="Object" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+		<method name="add_group_task">
+			<return type="int" />
+			<argument index="0" name="action" type="Callable" />
+			<argument index="1" name="elements" type="int" />
+			<argument index="2" name="tasks_needed" type="int" default="-1" />
+			<argument index="3" name="high_priority" type="bool" default="false" />
+			<argument index="4" name="description" type="String" default="&quot;&quot;" />
+			<description>
+			</description>
+		</method>
+		<method name="add_task">
+			<return type="int" />
+			<argument index="0" name="action" type="Callable" />
+			<argument index="1" name="high_priority" type="bool" default="false" />
+			<argument index="2" name="description" type="String" default="&quot;&quot;" />
+			<description>
+			</description>
+		</method>
+		<method name="is_group_task_completed" qualifiers="const">
+			<return type="bool" />
+			<argument index="0" name="group_id" type="int" />
+			<description>
+			</description>
+		</method>
+		<method name="is_task_completed" qualifiers="const">
+			<return type="bool" />
+			<argument index="0" name="task_id" type="int" />
+			<description>
+			</description>
+		</method>
+		<method name="wait_for_group_task_completion">
+			<return type="void" />
+			<argument index="0" name="group_id" type="int" />
+			<description>
+			</description>
+		</method>
+		<method name="wait_for_task_completion">
+			<return type="void" />
+			<argument index="0" name="task_id" type="int" />
+			<description>
+			</description>
+		</method>
+	</methods>
+</class>
diff --git a/doc/classes/XRCamera3D.xml b/doc/classes/XRCamera3D.xml
index e0fc016a7d..4d6baa327b 100644
--- a/doc/classes/XRCamera3D.xml
+++ b/doc/classes/XRCamera3D.xml
@@ -8,6 +8,6 @@
 		The position and orientation of this node is automatically updated by the XR Server to represent the location of the HMD if such tracking is available and can thus be used by game logic. Note that, in contrast to the XR Controller, the render thread has access to the most up-to-date tracking data of the HMD and the location of the XRCamera3D can lag a few milliseconds behind what is used for rendering as a result.
 	</description>
 	<tutorials>
-		<link title="VR documentation index">$DOCS_URL/tutorials/vr/index.html</link>
+		<link title="XR documentation index">$DOCS_URL/tutorials/xr/index.html</link>
 	</tutorials>
 </class>
diff --git a/doc/classes/XRController3D.xml b/doc/classes/XRController3D.xml
index deea888b8f..ff4aec46e1 100644
--- a/doc/classes/XRController3D.xml
+++ b/doc/classes/XRController3D.xml
@@ -10,7 +10,7 @@
 		As many XR runtimes now use a configurable action map all inputs are named.
 	</description>
 	<tutorials>
-		<link title="VR documentation index">$DOCS_URL/tutorials/vr/index.html</link>
+		<link title="XR documentation index">$DOCS_URL/tutorials/xr/index.html</link>
 	</tutorials>
 	<methods>
 		<method name="get_axis" qualifiers="const">
diff --git a/doc/classes/XRInterface.xml b/doc/classes/XRInterface.xml
index 0f4159cbbf..26b7699af2 100644
--- a/doc/classes/XRInterface.xml
+++ b/doc/classes/XRInterface.xml
@@ -8,7 +8,7 @@
 		Interfaces should be written in such a way that simply enabling them will give us a working setup. You can query the available interfaces through [XRServer].
 	</description>
 	<tutorials>
-		<link title="VR documentation index">$DOCS_URL/tutorials/vr/index.html</link>
+		<link title="XR documentation index">$DOCS_URL/tutorials/xr/index.html</link>
 	</tutorials>
 	<methods>
 		<method name="get_camera_feed_id">
diff --git a/doc/classes/XROrigin3D.xml b/doc/classes/XROrigin3D.xml
index b7811f4d53..7acee097e7 100644
--- a/doc/classes/XROrigin3D.xml
+++ b/doc/classes/XROrigin3D.xml
@@ -10,7 +10,7 @@
 		For example, if your character is driving a car, the XROrigin3D node should be a child node of this car. Or, if you're implementing a teleport system to move your character, you should change the position of this node.
 	</description>
 	<tutorials>
-		<link title="VR documentation index">$DOCS_URL/tutorials/vr/index.html</link>
+		<link title="XR documentation index">$DOCS_URL/tutorials/xr/index.html</link>
 	</tutorials>
 	<members>
 		<member name="world_scale" type="float" setter="set_world_scale" getter="get_world_scale" default="1.0">
diff --git a/doc/classes/XRPositionalTracker.xml b/doc/classes/XRPositionalTracker.xml
index d15558c9e8..c146b27fcb 100644
--- a/doc/classes/XRPositionalTracker.xml
+++ b/doc/classes/XRPositionalTracker.xml
@@ -9,7 +9,7 @@
 		The [XRController3D] and [XRAnchor3D] both consume objects of this type and should be used in your project. The positional trackers are just under-the-hood objects that make this all work. These are mostly exposed so that GDExtension-based interfaces can interact with them.
 	</description>
 	<tutorials>
-		<link title="VR documentation index">$DOCS_URL/tutorials/vr/index.html</link>
+		<link title="XR documentation index">$DOCS_URL/tutorials/xr/index.html</link>
 	</tutorials>
 	<methods>
 		<method name="get_input" qualifiers="const">
diff --git a/doc/classes/XRServer.xml b/doc/classes/XRServer.xml
index a322a3c5c9..d3cb958cbc 100644
--- a/doc/classes/XRServer.xml
+++ b/doc/classes/XRServer.xml
@@ -7,7 +7,7 @@
 		The AR/VR server is the heart of our Advanced and Virtual Reality solution and handles all the processing.
 	</description>
 	<tutorials>
-		<link title="VR documentation index">$DOCS_URL/tutorials/vr/index.html</link>
+		<link title="XR documentation index">$DOCS_URL/tutorials/xr/index.html</link>
 	</tutorials>
 	<methods>
 		<method name="add_interface">