It significantly improved rendering speeds on Intel ARC GPUs , Nvidia GTX cards (10-15% boost), and M1 Macs (15-20% boost).

Are you planning to use 2.6.4 for old family footage or for professional color grading work? Video Enhance v2.6.4 - Releases - Topaz Community Download: Windows | Mac. Released February 17, 2022. Topaz Community Where can I download an older version 2.6.4 - General

Check your firewall settings. Alternatively, some users manually download the model files and place them in the application's /models folder, though Topaz's recent backend fix should have resolved this for most. 3. App Closes Instantly (Windows 10/11)

Because this is an older version, you may encounter modern compatibility or server issues. Here are the most common "fixes" for a smooth experience: 1. The "Login Loop" or Activation Error

While the latest software offers more advanced features, version 2.6.4 is often preferred for:

As of late 2025, many users reported that they could no longer log in to version 2.6.4. Topaz Labs confirmed this was a backend server issue and pushed a on November 24, 2025.

Some Windows users find that v2.6.4 crashes immediately upon opening.