Today, Nicholas(UT) posted a thread to Unity3D official forum about v3.5 release features. We were guessing there will be no UI in this package, they even not mentioned that any beta updates.And its official now.

But there are some other exiting like;

• Shuriken, our awesome new curve- and gradient-driven modular particle system.
• Automatic navigation mesh generation, path-finding, and crowd simulation.
• Occlusion Culling has been rewritten from scratch to make baking reliable and much faster. Gates can be opened and closed at runtime.
• Built-in level-of-detail support.
• Cache Server – massively decreases import times when working in teams or switching platforms.
• Google Chrome NaCl support – the Unity Web Player plays automatically in Chrome without requiring an install.
• High dynamic range rendering with built-in tone mapping.
• Linear space (gamma correct) lighting and shading.
• Light probes for lighting dynamic objects and characters with high-quality baked lighting.
• Directional (RNM) lightmaps which enable bump and specular effects on surfaces lit by direct and indirect light.
• Area lights for lightmap baking.
• A brand new multi-threaded renderer. Unity will offload rendering to a separate core on your CPU, which can be up to 2x faster depending on the scene.
• Inspector finally supports multi-object editing.
• The profiler reports how much time is spent on the GPU on a per-object basis.
• Low-level audio buffer access which supports real-time sound generation.
• Webcam and microphone support.
• Text based scene and prefab formats make it possible to merge scene files.
• Prefab connections are no longer broken when adding or removing components!
• Find References of assets within your current scene
• Builtin iAd, Compass and Push notification support on iOS.
• Fully pluggable Social API with out-of-the-box iOS GameCenter support.
• XCode 4.0 “Build & Run” support.
• Quality Settings can now be specified per platform and are more flexible.
• Much improved MonoDevelop auto-completion.
• A ton of low level optimizations across the board, including a brand new memory allocation framework that reduces memory usage.
• A ton of small bugfixes.

V3.5 release is very soon. But I’m not happy with it. Some changes are already broke my existing code. And there’s no better documentation then current. Editor scripting reference are missing and old. But most important. No new UI.. I hope Scaleform release their solution faster then UT.

Anyway, here related forum ;

Cya Soon.