Unity 5.1.0

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NOTE: Unity 5.1 has shifted to Release Candidate phase! As such, a weekly release schedule may not be followed.


  • Lightmapping: Fixed race condition crash in lightmap bake when converting .exr files.
  • Merge Tool: Handle regression in 5.0.1 introduced by stripped prefabs.
  • Merge Tool: Fix auto fallback spec file detection.
  • iOS/IL2CPP: Remove the precompiled headers build option, as it is no longer supported.
  • Graphics: Fixed Shader.SetPass editor performance (5.1 regression).
  • Graphics: Fixed MSAA + Image Effects + Gamma color space resulting in black game view on DX11 (5.1 regression).
  • Editor: Fixed closing of Frame Debugger window making later wireframe rendering (e.g. model previews) not work (5.1 regression).
  • Mecanim: Fixed Animation previewer not working with AnimationClips longer than 1 seconds with compression enabled.
  • VR: Fixed an IPD scaling issue when Oculus is set to stereoscopic rendering.
  • VR: Fixed a Clipping plane scaling issue. The near clipping plane value was being scaled by a negative value, causing a Clipping Plane value of 0.

Known Issues:

  • Physics: HingeJoint Bounciness only works when Joint Preprocessing is enabled.
  • VR: Judder on OSX.
  • VR: OSX Standalone 32-bit does not work, use 64-bit.
  • VR: Health and Safety warning flickers. Either physically tap the HMD after 5 seconds to dismiss, or permanently disable the warning at your own risk.
  • Mecanim: Setting AnimatorState.speed to 0 doesn’t pause the animation as expected.
  • Mecanim: Switching runtime AnimatorState.speed from positive to negative break animation continuity.
  • Mecanim: Copy-Pasting StateMachines will not copy the Transitions inside of them.
  • Log-in: No alert if you enter invalid email address or invalid password.

Third Party Notices

For more information please see our Open Source Software Licenses FAQ on the Unity Support Portal