Unity 5.10.0 (2D and 3D) is now available for Ubuntu 12.04 Precise Pangolin users. The latest version of Unity have fixed huge list of bugs, improvements in HUD and complete Ubuntu Software Center Unity integration.
The Ubuntu software center integration has new animations which are when you click install in Ubuntu software center the application icons moves from Ubuntu Software Center to Unity Launcher, another animation is performed when installation is completed, application icon in Unity Launcher wiggles alerting you about finished installation. The animation is quite fast but it servers its purpose of alerting users where application is in Unity Launcher after installation. Other changes include justification of search field when in full screen mode.
You can view full list of changes from following links