## Highlights
A while ago a bug was reported in zlib-rs trifectatechfoundation/zlib-rs#459, which turned out to also exist in zlib-ng. zlib-ng has now fixed the bug and made a new release, and we're following suit here. This fix can change the output of compression slightly.
What's Changed

gate tests on features they use by @alexanderkjall in gate tests on features they use trifectatechfoundation/zlib-rs#475
the zalloc_rust and zalloc_rust_calloc functions are behind the rust-allocator feature by @alexanderkjall in the zalloc_rust and zalloc_rust_calloc functions are behind the rust-allocator feature trifectatechfoundation/zlib-rs#476
add test for deterministic deflate output by @folkertdev in add test for deterministic deflate output trifectatechfoundation/zlib-rs#461
fix compilation errors for 'cargo test --all-features' by @alexanderkjall in fix compilation errors for 'cargo test --all-features' trifectatechfoundation/zlib-rs#477
Run all the gz tests when building on macOS by @brian-pane in Run all the gz tests when building on macOS trifectatechfoundation/zlib-rs#479
ensure that all-features and --no-default-features builds by @folkertdev in ensure that all-features and --no-default-features builds trifectatechfoundation/zlib-rs#480

New Contributors

@alexanderkjall made their first contribution in gate tests on features they use trifectatechfoundation/zlib-rs#475

Full Changelog: trifectatechfoundation/zlib-rs@v0.6.2...v0.6.3

View the full release notes at https://github.com/trifectatechfoundation/zlib-rs/releases/tag/v0.6.3.