v0.21.0

Added

• Allow specifying encoder parameters for non-primary images in image sequence. #313

Changed

• Libheif updated from 1.18.2 to 1.19.5 version. #312
• For macOS(x86_64), the minimum supported version for binary wheels has been raised from 12 to 13.

Fixed

• Error argument '-Ofast' is deprecated when building from source. #305