zstd-safe breaking changes

7.4.0

5 breaking changes, first published November 3, 2026.

• Signature changed zstd_safe::CCtx
  Was struct CCtx<'a>(NonNull<zstd_sys::ZSTD_CCtx>, PhantomData<&'a ()>); now struct CCtx<'a>(NonNull<zstd_sys::ZSTD_CCtx>, PhantomData<&'a ()>, Poison, Workers). crates.io
• Signature changed zstd_safe::CCtx::init_using_cdict
  Was fn init_using_cdict<'b>(&mut self, cdict: &CDict<'b>) -> SafeResult where 'b: 'a, // Dictionary outlives the stream.; now fn init_using_cdict<'b>(&mut self, cdict: &'a CDict<'b>) -> SafeResult where 'b: 'a, // Dictionary outlives the... crates.io
• Signature changed zstd_safe::DCtx
  Was struct DCtx<'a>(NonNull<zstd_sys::ZSTD_DCtx>, PhantomData<&'a ()>); now struct DCtx<'a>(NonNull<zstd_sys::ZSTD_DCtx>, PhantomData<&'a ()>, Poison, DState). crates.io
• Signature changed zstd_safe::DCtx::init_using_ddict
  Was fn init_using_ddict<'b>(&mut self, ddict: &DDict<'b>) -> SafeResult where 'b: 'a,; now fn init_using_ddict<'b>(&mut self, ddict: &'a DDict<'b>) -> SafeResult where 'b: 'a,. crates.io
• Signature changed zstd_safe::seekable::Seekable
  Was struct Seekable<'a>(NonNull<zstd_sys::ZSTD_seekable>, PhantomData<&'a ()>); now struct Seekable<'a>(NonNull<zstd_sys::ZSTD_seekable>, PhantomData<&'a ()>, Poison). crates.io

7.3.0

3 breaking changes, first published September 4, 2026.

• Signature changed zstd_safe::CCtx::compress_block
  Was fn compress_block<C: WriteBuf + ?Sized>(&mut self, dst: &mut C, src: &[u8]) -> SafeResult; now unsafe fn compress_block<C: WriteBuf + ?Sized>(&mut self, dst: &mut C, src: &[u8]) -> SafeResult. crates.io
• Signature changed zstd_safe::DCtx::decompress_block
  Was fn decompress_block<C: WriteBuf + ?Sized>(&mut self, dst: &mut C, src: &[u8]) -> SafeResult; now unsafe fn decompress_block<C: WriteBuf + ?Sized>(&mut self, dst: &mut C, src: &[u8]) -> SafeResult. crates.io
• Signature changed zstd_safe::DCtx::insert_block
  Was fn insert_block(&mut self, block: &[u8]) -> usize; now unsafe fn insert_block(&mut self, block: &[u8]) -> usize. crates.io

Check your code

These are the changes. To see which of them reach your code, scan a public repository, or have your coding agent call check_code with your manifest or lockfile over MCP. The API reads every change in every version, not only the newest. On Team and up, a fix pull request opens for the changes that reach a connected repository. Nothing merges or deploys.