Symptoms:
Users may experience difficulties when using non-LTS or legacy versions of the Unity Editor, including:
- Compatibility issues with newer operating systems
- Bugs or glitches in the editor interface
- Problems with certain features or functionalities
- Difficulty accessing or using specific assets
- Build failures or runtime errors
Cause:
As Unity continues updating its software and as operating systems evolve, older non-LTS versions may become incompatible with modern systems or hardware. Non-LTS versions receive limited support and may contain bugs that were fixed in later releases.
Resolution:
To resolve issues with non-LTS or legacy Unity versions:
-
Update to the latest LTS version:
- Download from Unity Hub or the Unity website
- LTS versions offer increased stability, bug fixes, and performance improvements
- LTS versions receive extended support (currently 2 years from release)
-
Before upgrading:
- Back up your project
- Check the Unity upgrade guide for your target LTS version
- Test thoroughly after upgrading
-
If you must use a legacy version:
- Use a virtual machine with a compatible operating system
- Check Unity's archived documentation for that specific version
- Consider the security and compatibility risks
| Note: Unity LTS version is supported for two years, and after they fall to the legacy version, it is no longer supported |
More information:
What is a Unity LTS (Long Term Support) version and what can I expect from it?