1.5.6.7

• support of multiple instances of interpreter with custom GIL

1.5.6.6

• fix module version string form when building with external system library

1.5.6.5

• find pkg-config in paths defined in PATH environment variable
• add new options for development --all-warnings and --all-warnings-errors
• fix action setup for building wheels

1.5.6.4

• fixed check() function
• fixed various compiller warnings
• added some developer/debug options for compilation

1.5.6.3

• add missing definitions of multithreading and external library flags
• add new information function about legacy formats support
• fix building with external system library
• added an strict mode to compression function, to no make exception if level or threads count are beyond limitations

Broken check() function

1.5.6.2

• Add new functions: check(), ZSTD_with_threads(), ZSTD_with_asm()
• fix possible error with null dereference
• build extension with multi threads and using ASM by default
• fix github actions, build wheels for macos

Broken build with external libzstd.