Additional downloadsSelect the runtime platforms of your choice from the list below (the desktop runtime is included as standard) or, to install the full complement of runtime platforms, use the download assistant installer above.
Known Issues in 2018.4.20f1
Animation: Animator.Update CPU time spikes when multiple animations are playing (1184690)
MacOS: [Lighting]Errors in console on changing editor visualization mode to realtime GI if there is a particle system in scene. (1106901)
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.
Profiling: Editor crashes when loading profiler file with memcpy stacktrace (1131782)
Profiling: Performance decrease in EditorOverhead using Deep Profile (1051094)
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.
2018.4.20f1 Release Notes
AI: Fixed a path-finding bug in which floating point errors would cause agents to take potentially large, spurious detours. (977653)
Android: Fixed a crash during shutdown when starting a Java thread with a C# thread. (1224810)
Android: Fixed activity pause timeout warnings. (1223705)
Asset Import: Added AssetDatabase.DisallowAutoRefresh and AssetDatabase.AllowAutoRefresh to the C# API. (1173031)
Asset Pipeline: Fixed an issue where AssetBundle Recompression not verifying the CRC of bundle contents when requested. (1195075)
Asset Pipeline: Optimised copying an asset, so that a refresh of the asset database is not triggered. (1179856)
Editor: Fixed a crash when calling MonoImporter.GetExecutionOrder(null). (1181615)
Graphics: Avoid rebinding the texture and polute state if the texture target is unknown. (1199990)
Graphics: Fixed a crash in SkinnedMeshRenderer: make sure the cached mesh is valid before using it. (1183992)
Graphics: Fixed an issue loading shaders from a 2017.4 authored asset bundle into more recent Unity versions. (1195317)
Graphics: Fixed an issue that can cause increased draw call count when using static batching. (1098752)
iOS: Fixed an issue with profiler support for iPhone XR/XS/XS Max and above. (1133479)
iOS: Fixed Unity Remote errors when using iPhone XR/XS/XS Max and above. (1184243)
macOS: IME works in both editor and player is the proper location. (1178930)
Prefabs: Fixed an issue where editor entering infinite loop on certain bad prefabs. The bad prefabs are now patched during load. (1196082)
Prefabs: Fixed an issue with applying prefab override from a scene where the MonoBehaviour lives in a namespace and has FormerlySerializeAs on the fields. (1114464)
Profiler: Added message indicating that Profiler Modules need to be activated to profile. (1197721)
Scripting: Fixed an issue that raised on iOS where the player would crash when shutting down. (1145982)
UI: Fixed an issue with IME properly. (1178930)
Version Control: Fixed an issues with Unity auto refresh and version control. (1191378)
XR: Fixed a crash when you connect to a Hololens 2 using the HolographicRemoting scripting api and then enable Windows Mixed Reality.
- 2D: Added: Added SortingGroup.UpdateAllSortingGroups to allow users to immediately update SortingGroups instead of waiting for LateUpdate. (1202432)
- Asset Import: Added AssetDatabase.DisallowAutoRefresh and AssetDatabase.AllowAutoRefresh to the C# API. (1173031)