macOS: If the Android Tools are not installed through the Hub, macOS 10.15 (Catalina) default security settings will prevent the Android NDK binaries being executed. These settings have to be changed or a signed Android NDK (r16b) will be needed to build Android. More information here: https://developer.android.com/ndk/downloads/older_releases.
Package Manager: Immutable packages altered by the API Updater are reverted to their original state when packages are resolved, which can lead to slower import performance in that context.
Windows: The Cursor is visible when Cursor.visible is set to false and new InputSystem package is used (1273522)
Package Manager: User can’t easily configure location of both UPM and Asset Store package local cache (1317232)
Package Manager: Package Manager window doesn’t show available updates (1304459)
Audio: Crash on AudioSource::Stop when exiting Play mode (1079263)
Polybrush: Something went wrong saving brush settings Warning is thrown when Saving a Brush after opening the PolyBrush Window (1315475)
GI: Fixed assertion failure due to duplicate lightprobe assests being detected during an additive scene merge. (1211198)
IL2CPP: Corrected the behavior of by-reference parameter for delegate async invocation when the by-reference parameter is after a non-by-reference parameter. (1313160)
IL2CPP: Fixed exception when converting a method with a parameter that is a generic parameter with a default value. (1313460)
IL2CPP: Fixed to correctly report the public key for assemblies where it exists. (1271060)
Profiler: Fixed sample names of samples in surrounding frames disappearing in Timeline view. (1317697)
Scene Manager: Fixed to ensure objects are cleaned up properly if they are children of GameObject with DontSave flag. (1157422)
WebGL: Added handling for Norwegian Bokmal and Nynorsk in SystemInfo for macOS and Linux, and to SystemInfo in Runtime/Misc used by WebGL and MetroPlayer. (1288528)
XR: Fixed Windows Mixed Reality PhotoVideoCamera positioning in the Unity scene. (1306048)