Download & Release Notes 5.4 Beta Forum Another announcement we made during GDC was the release of the Unity 5.4 public beta which is now available for all users. Grab the build and find the release notes here. Read about what the public beta brings to your projects on the blog. Please refer to the 5.4 Beta Forum for discussing issues and giving feedback. Bringing in more users to test our beta releases will help us move closer towards the goal of maintaining stable versions of Unity. Remember to always back up your projects before downloading a new version of Unity!