Sourced from rayon's changelog.

Release rayon 1.6.0 / rayon-core 1.10.0 (2022-11-18)

• The minimum supported rustc is now 1.56.
• The new IndexedParallelIterator::fold_chunks and fold_chunks_with methods work like ParallelIterator::fold and fold_with with fixed-size chunks of items. This may be useful for predictable batching performance, without the allocation overhead of IndexedParallelIterator::chunks.
• New "broadcast" methods run a given function on all threads in the pool. These run at a sort of reduced priority after each thread has exhausted their local work queue, but before they attempt work-stealing from other threads.
  • The global broadcast function and ThreadPool::broadcast method will block until completion, returning a Vec of all return values.
  • The global spawn_broadcast function and methods on ThreadPool, Scope, and ScopeFifo will run detached, without blocking the current thread.
• Panicking methods now use #[track_caller] to report the caller's location.
• Fixed a truncated length in vec::Drain when given an empty range.

Contributors

Thanks to all of the contributors for this release!

• @​cuviper
• @​idanmuze
• @​JoeyBF
• @​JustForFun88
• @​kianmeng
• @​kornelski
• @​ritchie46
• @​ryanrussell
• @​steffahn
• @​TheIronBorn
• @​willcrozi

Release rayon 1.5.3 (2022-05-13)

• The new ParallelSliceMut::par_sort_by_cached_key is a stable sort that caches the keys for each item -- a parallel version of slice::sort_by_cached_key.

Release rayon-core 1.9.3 (2022-05-13)

• Fixed a use-after-free race in job notification.

Release rayon 1.5.2 / rayon-core 1.9.2 (2022-04-13)

• The new ParallelSlice::par_rchunks() and par_rchunks_exact() iterate slice chunks in reverse, aligned the against the end of the slice if the length is not a perfect multiple of the chunk size. The new ParallelSliceMut::par_rchunks_mut() and par_rchunks_exact_mut() are the same for mutable slices.
• The ParallelIterator::try_* methods now support std::ops::ControlFlow and

... (truncated)

• 60cdb43 Merge #686
• efeeace Release rayon 1.2.0 / rayon-core 1.6.0
• d993d7a Merge #683
• 2720d8d Merge #682
• c6a294b impl ParallelExtend<()> for ()
• 9bfb3c6 clippy::inconsistent_digit_grouping
• 3cd762e clippy::toplevel_ref_arg
• b216c3e Update bare traits to dyn Trait
• 58b0275 Once:new() is const-stable since Rust 1.24
• 83b67e2 Merge #673
• Additional commits viewable in compare view

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