What's Fixed

Animation:
-Incorrect initialization of complex attribute structure causes crash on file open
-Invisibility Evaluator state does not always update
-Crash when baking key animation
-Butterworth filter undo is slow with large datasets
-Vertex and UV manipulation breaks on meshes with keys
-Interactive Bind Skin Tool: unable to shrink, move, or rotate the capsule
-Playback frame rate is slower than real-time if no other application than Maya is running
-NURBs evaluation crash with scenes containing animated surface modifiers
-Modifying deformer set confuses the connections
-Graph Editor: Retime tool cannot undo and leads to a crash
-Graph Editor: Euler filter is not processing sibling curves correctly
-Parallel Evaluation : Maya crashes when rendering frame 1 but not frame 20
-Select Playbast/Options crashes using Black Magic drivers
-Image plane performance is slow on Mac OS X
-Cycle warning when editing vertices on a blend shape target
-Crash when selecting IK Control
-Using weightBlended skinning zeros all normals on mesh
-Cannot type in values for IK handle in Channel Box / Attribute Editor
-Maya graph editor hangs animating cameras
-Crash saving a file that has a HIK XML file using id 0
-Joint orientations not evaluating properly
-Butterworth/Key Reducer filter : Enabling "Preserve Keys by Tangent" when "Preview" is on, causes a crash
-Incorrect Squash and Stretch behavior in DG Mode
-Keying NURBS with Vis Connections Freezes Application
-Joint rotate pivot does not move
-Crash creating proxy attributes
-Crash deleting nodes from simple rig
-Missing dependency propagation during graph construction causes crash during playback or scrubbing
-Transforming multiple selected controls connected to a character set does not work

Foundation:
-Creating a set a second time duplicates the first set in the Outliner
-Missing sets in outliner when creating 10+ sets (or 2+ quick select sets)
-Incorrect Module path set with autoLoader.mll plugins
-Entering a backslash in the plugin manager search window causes it to become blank
-Creating node from PyMel fails after first instance
-Some python commands no longer auto-convert its parameters to strings
-Custom nodes (such as Mash waiter node) do not show in Outliner unless Searched
-Walk Tool Broken, Error: Line 1.47: "$walkToolMessage" is an undeclared variable.
-"File Save As" does not save to correct location (no longer defaults to the project location scenes directory, rather to the last location that was open)
-importTimeRange "override" is not working
-V-Ray Sets missing (like displacement) in the Outliner
-A newly created character set does not appear in the Outliner
-referenceQuery: "Cannot find the associated namespace" after renaming reference namespace
-Memory corruption and crash when the garbage collector invoked from a thread cleans up widgets
-Dictionary Attributes not being stored as expected
-Blend shape targets lost when importing FBX
-Crash when calling exit() in mayapy without standalone.uninitialize()
-Crashing when importing .ABC files with extra attributes added

Modeling:
-Mirror not working properly in -Z axis
-Maya crashes opening scene where polyPinUV history was previously deleted
-Maya crashes when using 3D Paint Tool on NURBS
-polyPlatonic, PolyDisc, polySuperShape, and PolyGear unavailable in batch mode
-Select > Inverse for NURBS CVs clears the selection
-Lag when selecting multiple large meshes while UV Editor is open
-Long pause when selecting a large number of small meshes while the UV Editor is open
-When replicating children of LOD_Group with inputConnections set to True, grandchild nodes are not duplicated
-art3dPaintCtx exportfilesave fails to export attribute map
-Boolean operations create invalid geometry causing Maya to crash
-Mirror Offset does not work
-Maya does not recognize polydisc node in prompt mode
-Crash while deleting Components on instanced Objects (with display of border edges on)
-Poly Mirror not working if "Cut geometry" is on and "Offset" is 0

Rendering:
-Light editor state becomes corrupt if referenced lights are deleted in the referenced file
-Maya: Crash on import of Maya scene with legacy render layers enabled

UI:
-Save As path in File Dialog is not the path of the file opened anymore
-UI : field colors of non-keyable attributes are hard to read
-Unable to re-dock toolbox(windows) without resizing. (Please see Notes section below for more details on this fix)
-MayaQWidgetDockableMixin the close event is never triggered when closing the window.
-Accessing freed memory when exiting mayapy from static initializers and destructors
-Workspaces: "Reset Current Workspace" does not restore widgets to their original size
-Outliner lags with large number of elements (faces) expanded

Viewport:
-Selection of objects causes continuous memory leak
-MHWRender::MIndexBuffer: Linux: wrong number reported by "ogs -gpu" when using custom buffers
-Wireframe not visible for geometry override
-Viewport 2.0 display of stereo cameraSet is incorrect
-MTextureManager always creates mipmaps
-Geometry corruption with UV Editor in Shaded Mode
-Viewport 2.0: nCloth: Connection Density Range curve from constraint node not updating
-castShadows attribute is not evaluated properly if it's connected to another attribute
-Skin-Delta Deformation Incorrect Behavior when Referenced
-Fixed broken draw and selection when plugin shape has -1 value for MVertexBufferDescriptor::offset()
-Performance issue - updateRenderItems called every frame
-Display glitch whilst modeling in the viewport
-Maya 2018 UV Editor is slow when many other meshes are in the scene
-Some UVs are only visible when you zoom out

XGen:
-IGS LinearWire Simulation behavior incorrect
-Utility tab of XGen editor in Maya 2019 is blank

Rendering:
-If you are using Maya 2019.1 Update with MtoA 3.2.0, you may experience a crash if you hide or unhide a light while Arnold RenderView is running.

-Workaround: Render with MtoA 3.2.1 instead. To obtain the installer,
UI
-Unable to re-dock toolbox(windows) without resizing. MAYA-97252

-Workaround: Set the environment variable MAYA_WORKSPACES_ALWAYS_SHOW_TAB to 1 so that the tab remains present and can be used to select, dock and redock.