You can read the full announcement blog post at:
https://blogs.embarcadero.com/embarcadero-interbase-2020-update-3-released/
In terms of new features, the most notable is the overhaul of InterBase Manager for Windows UI, turning from a gray to white background, adding Hig DPI support and crisp fonts, and some additional information. Here is the old and new layout:
You can find more information on InterBase and the 2020 Update 3 at the following links:
- https://www.embarcadero.com/products/interbase
- https://interbase.com/
- https://docwiki.embarcadero.com/InterBase/2020/en/What%27s_New_in_InterBase_2020_Update_3