imbl-sized-chunks

Releases

1. ▸▾0.2.09 Sept 2026

   imbl-sized-chunks 0.2.0: replace the unmaintained bitmaps crate with …

   imbl-sized-chunks 0.2.0: replace the unmaintained bitmaps crate with …

   Open source →

   Additional notes

   CHANGED

   • The bitmaps crate dependency has been removed (it is unmaintained and flagged by RUSTSEC-2026-0247, and carries the unpatched soundness issue RUSTSEC-2025-0167). Its functionality is now provided in-tree by the new public module bitmap, exposing Bitmap, Iter, Bits and BitsImpl with the same API surface this crate relies on. This is a breaking change: the SparseChunk method indices() now returns bitmap::Iter instead of the bitmaps crate type, and the BitsImpl<N>: Bits bound now refers to the in-tree trait.

   • SparseChunk::is_empty and is_full now check the occupancy bitmap directly.

   • The minimum supported Rust version, previously implied 1.56, is now explicit at 1.85, matching imbl.

   FIXED

   • bitmap::Iter no longer yields the meeting element twice when iterated from both ends at once (bug inherited from the bitmaps crate's Iter); it is now also FusedIterator.

   • Bitmap::from_value clears bits at or above N, so a value with out-of-range bits set can no longer produce an incoherent bitmap (reporting elements no scan or iterator can see, and vice versa). bitmaps leaves the bit in place and leaks it through its unmasked scans.

   • The only other behavioral divergence from bitmaps: the bool-backed Bitmap<1>::prev_index(before > 0) answers Some(0) when the bit is set; upstream's implementation has a dead branch returning None for an out-of-contract input.