Issues

• Bug: C usearch_exact_search overflows the heap when count exceeds the dataset size

  bug
  unum-cloud/USearch#836 · Filter by author FunHenaXTV opened on Nov 4, 2026

• Bug: rename and batch remove on a viewed index crash with SIGBUS

  bug
  unum-cloud/USearch#835 · Filter by author FunHenaXTV opened on Nov 4, 2026

• Bug: Python index.add and exact search run 50–1,500× slower while another Python thread is busy (GIL re-acquired per item since v2.25.3)

  unum-cloud/USearch#831 · Filter by author clemlesne opened on Oct 28, 2026

• Bug: BatchMatches recall counts unused result slots as hits

  unum-cloud/USearch#826 · Filter by author HuaTNA opened on Oct 26, 2026

• Feature: Let C API users turn off key lookups (usearch_view rebuilds the key table every time)

  unum-cloud/USearch#818 · Filter by author clemlesne opened on Oct 21, 2026
  1

• Feature: Exact filtered search over an index in the C API

  unum-cloud/USearch#817 · Filter by author clemlesne opened on Oct 21, 2026

• Bug: usearch_exact_search ignores its threads argument

  unum-cloud/USearch#816 · Filter by author clemlesne opened on Oct 21, 2026
  2

• Bug: Keys with identical vectors become unreachable by search(), also with one thread

  unum-cloud/USearch#815 · Filter by author clemlesne opened on Oct 21, 2026
  1

• Feature: Cache member norms for built-in cosine search

  enhancement
  unum-cloud/USearch#786 · Filter by author ShreyPandit opened on Sep 3, 2026

• Bug: Concurrent add() creates nodes unreachable by search()

  bugv3
  unum-cloud/USearch#735 · Filter by author DavIvek opened on Mar 24, 2026
  4

• Feature: Add compact() method to reclaim memory from deleted vectors (tombstones)

  enhancement
  unum-cloud/USearch#726 · Filter by author anaslimem opened on Mar 6, 2026
  2

• Feature: int4 support

  enhancement
  unum-cloud/USearch#716 · Filter by author umarbutler opened on Feb 22, 2026
  1

• Feature: DiskANN

  enhancementv3
  unum-cloud/USearch#712 · Filter by author hermit907 opened on Feb 16, 2026
  2

• Feature: Add thread_id parameter to add/search operations in RustSDK

  enhancementv3
  unum-cloud/USearch#701 · Filter by author frostoffmax opened on Jan 8, 2026
  1

• Feature: Add compact() method to Rust SDK

  enhancementgood first issuehelp wanted
  unum-cloud/USearch#700 · Filter by author frostoffmax opened on Jan 8, 2026

• Feature: PHP Bindings

  enhancement
  unum-cloud/USearch#692 · Filter by author aszenz opened on Jan 4, 2026
  1

• Feature: External Vector Accessor

  enhancementv3
  unum-cloud/USearch#691 · Filter by author zhangjinpeng87 opened on Jan 4, 2026
  1

• Feature: improve filtered search with ACORN-1

  enhancementv3
  unum-cloud/USearch#672 · Filter by author cpegeric opened on Oct 29, 2025

• Feature: Add filtered search predicate support in golang

  enhancement
  unum-cloud/USearch#671 · Filter by author cpegeric opened on Oct 29, 2025

• Feature: LeaNN indexing

  enhancement
  unum-cloud/USearch#662 · Filter by author rschu1ze opened on Sep 11, 2025
  4

• Feature: 2 bit quantization

  enhancement
  unum-cloud/USearch#661 · Filter by author rschu1ze opened on Sep 8, 2025
  2

• Bug: Mult-Index Search Doesn't Work in Python

  bug
  unum-cloud/USearch#643 · Filter by author polm-stability opened on Jul 30, 2025

• Feature: Improved rust bindings

  enhancement
  unum-cloud/USearch#642 · Filter by author jbrummack opened on Jul 22, 2025
  4

• Bug: golang.NewIndex segfault

  bug
  unum-cloud/USearch#630 · Filter by author cpegeric opened on Jul 4, 2025
  2

  

• Feature: Expose clustering API in Rust

  enhancement
  unum-cloud/USearch#611 · Filter by author henryjandrews opened on May 28, 2025