Download Unity 2021 2021.1.20f1

Improvements
- Scripting: Ammend CompilationPipeline.compilationFinished to include that it's currently not possible to build a player from a callback. (1338334)

Changes
- Editor: Updated com.unity.cinemachine to 2.7.8

Fixes
- Android: Fixed android:exported atribute not set to true for Uniy library activity when target API level is 31 or higher. (1356676)
- Android: Fixed cameras with depth only clear flickering or not rendering on Adreno devices. (1314872)
- Asset Pipeline: Fixed issue where some meshes imported from FBX are missing the first UV channel. (1342131)
- Asset Pipeline: Improved UI performance when generating many asset previews. (1340118)
- Audio: Fixed missing domain unload callback and excessive number of registrations for each instantiation of a custom DSP that caused an "Callback registration failed. Increase kMaxCallback." error. (1306511)
- GI: Fixed baking on non-primary GPU on machines using a mix of NVIDIA and AMD GPUs. (1314991)
- GI: Fixed reflection probes weight on flat objects. (1233991)
- GI: LightProbes.needsRetetrahedralization doesn't get invoked in IL2CPP builds. (1338514)
- Graphics: Fixed bilinear rescale on 32k wide or high images such that the image no longer flips around. (1340329)
- Graphics: Fixed SRPBatcher not increasing CBuffer size when material shader is changed. (1353368)
- Input System: Fixed Y coordinate being flipped in Windows Player when WarpCursorPosition in Input System. (1355722)
- iOS: Fixed 'end Encoding' crash when force closing iOS application. (1329593)
- iOS: Fixed Mute Other Audio Sources not muting background audio on a device when toggled on when Unity audio is enabled. (1335093)
- iOS: Fixed video freezing or app crashing when resuming the app from suspension or unlocking the device. (1297877)
- N/A (internal): Fixed scene-with-scrollbar-horizontal-delete-doesnt-dirty-on-save test instability by calling Focus(). (1356609)
- Package Manager: Fixed "Load all" not working in "My Assets". (1287445)
- Package Manager: Fixed the issue where the selection in the list is broken and the wrong package appears as selected in My Assets. (1343197)
- Package Manager: Fixed the issue where there is a noticeable lag when selecting an asset in the PackageList when navigating a large number of assets in My Assets. (1343193)
- Prefabs: Fixed unpacked prefabs added under a prefab instance being removed when undoing any change made to outermost root. (1339775)
- Scripting: Fixed an issue when opening a project using rulesets, Error CS8035 is no longer thrown in the console. (1349517)
- Services: Analytics no longer auto-activates on new project link.
- Services: Updated analytics package. Constantly repopulating a list of strings was causing the inspector panel for the analytics tracker to spam autosave in some cases. (1150985)
- Universal Windows Platform: Fixed Alt + Enter not entering/leaving fullscreen mode. (1304865)
- Windows: Fixed the new input system reporting incorrect keyboard key display names when using certain non-english keyboard layouts. (1337684)