0.15.2 (released 2021-02-27)

Backwards Compatibility Notes

ZstdCompressor.multi_compress_to_buffer() and
ZstdDecompressor.multi_decompress_to_buffer() are no longer
available when linking against a system zstd library. These
experimental features are only available when building against the
bundled single file zstd C source file distribution. (#106)

setup.py now recognizes a ZSTD_EXTRA_COMPILER_ARGS
environment variable to specify additional compiler arguments
to use when compiling the C backend.
PyPy build and test coverage has been added to CI.
Added CI jobs for building against external zstd library.
Wheels supporting macOS ARM/M1 devices are now being produced.
References to Python 2 have been removed from the in-repo Debian packaging
code.
Significant work has been made on a Rust backend. It is currently feature
complete but not yet optimized. We are not yet shipping the backend as part
of the distributed wheels until it is more mature.
The .pyi type annotations file has replaced various default argument
values with ....