Issues

• [feat](hgraph): add local SQ4/SQ8 for L2, IP and cosine

  kind/featuremodule/indexversion/1.1
  antgroup/vsag#3059 · Filter by author wxyucs opened on Oct 12, 2026
  1

  

• [bug](ci): HGraph force-remove repair fails to throw expected allocation error

  area/cicreated-by-AIkind/bugmodule/indexpts/5repeats/1version/1.1
  antgroup/vsag#3054 · Filter by author vsag-bot opened on Oct 10, 2026
  2

• [bug](ivf): prevent centroid scan routing OOM on large batches

  kind/bugmodule/indexneeds-triagepts/5
  antgroup/vsag#3051 · Filter by author shenguoquan opened on Oct 10, 2026
  1

  

• [feat](uhg): add unified dense-sparse hybrid graph retrieval

  kind/featuremodule/apimodule/indexneeds-triagepts/8
  antgroup/vsag#3050 · Filter by author Roxanne0321 opened on Oct 10, 2026
  1

• [bug](ci): AArch64 HNSW update-vector test returns one fewer correct result

  area/cicreated-by-AIkind/bugmodule/indexpts/5repeats/1version/0.16
  antgroup/vsag#3046 · Filter by author vsag-bot opened on Oct 10, 2026
  1

• [bug](hgraph): isolate reranked range regression from graph pruning

  kind/bugmodule/indexpts/2version/0.16
  antgroup/vsag#3045 · Filter by author wxyucs opened on Oct 10, 2026
  1

  

• [bug](ci): RaBitQ residual-factor and HGraph traversal-accounting assertions fail on arm64

  area/cicreated-by-AIkind/bugmodule/indexpts/8repeats/1version/1.1
  antgroup/vsag#3043 · Filter by author vsag-bot opened on Oct 9, 2026
  2

  

• [improve](ivf): expose kmeans training iteration count as a build parameter

  area/cikind/improvementmodule/indexneeds-triagepts/5
  antgroup/vsag#3041 · Filter by author LHT129 opened on Oct 9, 2026
  1

  

• [bug](search): return all duplicate IDs in HGraph and Pyramid root KNN

  kind/bugmodule/indexpts/3version/0.18
  antgroup/vsag#3036 · Filter by author dasurax opened on Oct 8, 2026
  3

  

• [feat](bruteforce): support sparse vector exact search

  kind/featuremodule/apimodule/datacellneeds-triagepts/8
  antgroup/vsag#3031 · Filter by author Roxanne0321 opened on Oct 8, 2026
  1

• [bug](ci): HGraph regression test gh#369 crashes with SIGSEGV

  area/cicreated-by-AIfixing-by-AIkind/bugmodule/indexpts/5repeats/1version/0.18
  antgroup/vsag#3024 · Filter by author vsag-bot opened on Sep 28, 2026
  2

  

• [bug](ci): HGraph dirty-vector search test crashes with SIGSEGV

  area/cicreated-by-AIfixing-by-AIkind/bugmodule/indexpts/5repeats/1version/0.18
  antgroup/vsag#3020 · Filter by author vsag-bot opened on Sep 28, 2026
  2

  

• [bug](build): Missing <cstring> in src/impl/bitset/fast_bitset.cpp causes compilation failure on GCC 15/16

  area/cikind/bugmodule/simdneeds-triagepts/1
  antgroup/vsag#3017 · Filter by author thlurte opened on Sep 27, 2026
  1

• [bug](simd): FP16ToFloat and FloatToFP16 in generic.cpp produce incorrect values for zero, subnormals, and non-finite numbers

  kind/bugmodule/simdneeds-triagepts/3
  antgroup/vsag#3016 · Filter by author thlurte opened on Sep 27, 2026
  1

• [improve](<scope>): [Performance] Low and fluctuating CPU utilization during batched Add with Fused RaBitQ 1+7

  area/bindings-nodekind/improvementmodule/apimodule/datacellneeds-triagepts/8
  antgroup/vsag#3007 · Filter by author lxyhcx opened on Sep 24, 2026
  2

  

• [bug] HGraph returns incorrect distances for label 0 after deserialization on 0.18

  kind/bugmodule/indexpts/5version/0.18version/1.1
  antgroup/vsag#3004 · Filter by author wxyucs opened on Sep 24, 2026
  2

  

• [Improvement] Use native quantized data for SIMQ construction and incremental partitioning

  kind/improvementmodule/apimodule/datacellpts/13version/1.0
  antgroup/vsag#2995 · Filter by author LHT129 opened on Sep 22, 2026
  1

  

• [improve](hgraph): MCI loses to brute force above ~0.5% selectivity because the seed budget ignores the valid set

  needs-triagepts/5
  antgroup/vsag#2987 · Filter by author LightWant opened on Sep 22, 2026
  1

• [q](pyramid): verify that request-level parallelism enables multi-path parallel search

  kind/bugmodule/indexpts/8questionversion/1.1
  antgroup/vsag#2985 · Filter by author xfmeng17 opened on Sep 21, 2026
  1

  

• [improve](hgraph): MCI keeps expanding candidates that discover nothing

  kind/improvementmodule/indexneeds-triagepts/5
  antgroup/vsag#2977 · Filter by author LightWant opened on Sep 19, 2026
  1

• [bug](build): repair 1.0 header and FILE deleter compilation with gcc 15

  area/cikind/bugmodule/apimodule/attrneeds-triagepts/3
  antgroup/vsag#2975 · Filter by author wxyucs opened on Sep 18, 2026
  1

  

• [bug](hgraph): low-selectivity filtered KNN can stall a query for minutes at high ef_search

  kind/bugmodule/indexneeds-triagepts/8
  antgroup/vsag#2974 · Filter by author LightWant opened on Sep 18, 2026
  1

• [bug](build): fix 1.0 manylinux cxx11 dependency build regressions

  area/ciarea/dependenciesarea/dockerkind/bugmodule/apipts/8version/0.18version/1.0
  antgroup/vsag#2970 · Filter by author wxyucs opened on Sep 17, 2026
  1

  

• [improve](build): tolerate floating-point rounding in int8 tests for 1.0

  area/ciarea/testingkind/improvementmodule/datacellmodule/indexpts/2version/1.0
  antgroup/vsag#2967 · Filter by author wxyucs opened on Sep 17, 2026
  1

  

• [bug](pyramid): align RangeSearch radius filtering and ef_search semantics with HGraph

  kind/bugmodule/indexneeds-triagepts/5
  antgroup/vsag#2963 · Filter by author yuhong0663 opened on Sep 15, 2026
  1