Issues

• linalg.Qr(..., is_tau=True) returns the conjugate of the geqrf scalars for complex input

  Cytnx-dev/Cytnx#1232 · Filter by author pcchen opened on Nov 13, 2026
  1

• [gpu] Tensor get/set silently drops elements (and occasionally hangs) for selections over 2048 elements

  Cytnx-dev/Cytnx#1229 · Filter by author pcchen opened on Nov 12, 2026

• [proposal] Make cuQuantum an optional dependency of the GPU build

  compile/builddependenciesgpuproposal
  Cytnx-dev/Cytnx#1227 · Filter by author pcchen opened on Nov 12, 2026

• perf(linalg): investigate alias-aware elementwise kernels and avoid unnecessary clones

  enhancement
  Cytnx-dev/Cytnx#1225 · Filter by author IvanaGyro opened on Nov 12, 2026

• v2.0.0 release tracking

  Cytnx-dev/Cytnx#1219 · Filter by author pcchen opened on Nov 11, 2026 · v2.0.0
  8

• Eigh / Eig: add an algorithm option for the LAPACK driver (as proposed for SVD in #623) and default Eigh to ?syevd / ?heevd

  enhancement
  Cytnx-dev/Cytnx#1214 · Filter by author pcchen opened on Nov 10, 2026 · v2.0.0
  2

• Restore Coverity scans: current workflow fails during BLAS detection

  Cytnx-dev/Cytnx#1205 · Filter by author ianmccul opened on Oct 26, 2026

• Make nightly version ordering and installation instructions select the intended build

  Cytnx-dev/Cytnx#1204 · Filter by author ianmccul opened on Oct 26, 2026 · v2.0.0
  2

• Decide the supported Python baseline and update packaging, Pixi and CI together

  Cytnx-dev/Cytnx#1203 · Filter by author ianmccul opened on Oct 26, 2026 · v2.0.0
  1

• Gate package publication on release validation and add a build-only dispatch mode

  Cytnx-dev/Cytnx#1202 · Filter by author ianmccul opened on Oct 26, 2026

• Limit CI token permissions and isolate publishing credentials from builds

  Cytnx-dev/Cytnx#1201 · Filter by author ianmccul opened on Oct 26, 2026

• Pass conda release artifact paths as separate upload arguments

  Cytnx-dev/Cytnx#1200 · Filter by author ianmccul opened on Oct 26, 2026

• Fix conda packages built with version None and no artifact tests

  Cytnx-dev/Cytnx#1199 · Filter by author ianmccul opened on Oct 26, 2026 · v2.0.0

• Test installed release wheels before publication

  Cytnx-dev/Cytnx#1198 · Filter by author ianmccul opened on Oct 26, 2026 · v2.0.0

• Install newest release from conda

  docshelp wanted
  Cytnx-dev/Cytnx#1189 · Filter by author manuschneider opened on Sep 21, 2026
  3

  

• [build/docs] Define the supported build configuration model

  Cytnx-dev/Cytnx#1183 · Filter by author pcchen opened on Aug 19, 2026
  3

• UniTensor::truncate_(bond, x): x is a bond dimension for dense tensors but a sector index for symmetric ones

  suggestion
  Task

  Cytnx-dev/Cytnx#1182 · Filter by author manuschneider opened on Aug 14, 2026

• Migrate the remaining hand-written CUDA kernels off cuFloatComplex/cuDoubleComplex (follow-up to #1003)

  Cytnx-dev/Cytnx#1178 · Filter by author yingjerkao opened on Aug 13, 2026

• [build] #1171 part 1: default multi-arch CUDA build does emit sm_80 SASS on master — mechanism needs re-diagnosis, and CI never covers the default path

  CI/CDcompile/buildgpu
  Cytnx-dev/Cytnx#1177 · Filter by author yingjerkao opened on Aug 5, 2026
  2

• [build] Default CUDA architectures: GPU kernels silently return zeros on sm_80, and a wrong-arch build never reports an error

  Cytnx-dev/Cytnx#1171 · Filter by author yingjerkao opened on Aug 2, 2026
  7

• refactor(Type): deduplicate the two value-type → CUDA-type traits (to_cuda_t / gpu_element_type_t)

  Cytnx-dev/Cytnx#1170 · Filter by author yingjerkao opened on Aug 2, 2026

• CUDA error paths still terminate the process with exit()

  Cytnx-dev/Cytnx#1164 · Filter by author IvanaGyro opened on Aug 2, 2026

• codecov/project red on every PR since 2026-07-30: pybind/ files dropped out of the C++ coverage report

  bugCI/CD
  Cytnx-dev/Cytnx#1162 · Filter by author yingjerkao opened on Jul 31, 2026
  2

• Uint16 x Uint16 multiply is signed-overflow UB in Kron/Outer/Mul (CPU and GPU)

  buggpu
  Cytnx-dev/Cytnx#1160 · Filter by author yingjerkao opened on Jul 31, 2026
  1

• Print full-precision mismatch values in CPU and GPU test helpers

  Cytnx-dev/Cytnx#1159 · Filter by author IvanaGyro opened on Jul 31, 2026