Unity 5.1.0f1

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

Fixes:

• 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.