Issues

• Ensure HTTPS is enabled

  scverse/anndataR#524 · Filter by author Zethson opened on Sep 23, 2026

• Test reading/writing H5AD files across multiple anndata releases

  developerh5ad
  scverse/anndataR#516 · Filter by author rcannood opened on Aug 31, 2026

• Add anndataR to scverse/integration-testing

  developer
  scverse/anndataR#515 · Filter by author rcannood opened on Aug 31, 2026

• Full support for Python anndata >= 0.13

  new feature
  scverse/anndataR#514 · Filter by author rcannood opened on Aug 31, 2026
  4

• Implement compression for boolean datasets

  h5adnew feature
  scverse/anndataR#513 · Filter by author rcannood opened on Aug 31, 2026

• usage_python vignette fails with mudata >= 0.4

  scverse/anndataR#511 · Filter by author rcannood opened on Aug 31, 2026
  1

• Spec deviation for Zarr scalar strings

  bugtriage
  Bug

  scverse/anndataR#500 · Filter by author Bisaloo opened on Aug 12, 2026
  2

• Seurat object CITE-seq data conversion do AnnData, scanpy read issue

  questiontriage
  scverse/anndataR#494 · Filter by author Lodevdv opened on Jul 29, 2026
  3

• hdf5_adata$as_Seurat fails when features contain _

  bugtriage
  Bug

  scverse/anndataR#476 · Filter by author doliv071 opened on Jul 9, 2026
  3

• Add lazy hdf5anndata to benchmarks

  triage
  scverse/anndataR#474 · Filter by author rcannood opened on Jun 23, 2026

• Allow reading/writing from a path in a HDF5 file

  h5adtriage
  Enhancement

  scverse/anndataR#466 · Filter by author lazappi opened on Jun 11, 2026
  

• Consolidated Zarr metadata at the root of the anndata zarr store

  triage
  scverse/anndataR#461 · Filter by author Bisaloo opened on May 25, 2026
  1

• Add optional data.frame conversion for Matrix column names (Seurat Conversion)

  triage
  scverse/anndataR#459 · Filter by author samuel-marsh opened on May 21, 2026

• Extract shared encoding helpers from H5AD and Zarr backends

  h5adzarr
  Task

  scverse/anndataR#445 · Filter by author lazappi opened on Apr 15, 2026

• Investigate how missing values are handled in string arrays

  h5adzarr
  Task

  scverse/anndataR#444 · Filter by author lazappi opened on Apr 15, 2026

• Does .view$as_HDF5AnnData(file = subset_file_path) copy all data to the memory before writing to the disk?

  h5adquestion
  scverse/anndataR#433 · Filter by author PedroMilanezAlmeida opened on Mar 6, 2026

• Add support for scATAC-seq data

  new feature
  Enhancement

  scverse/anndataR#414 · Filter by author wurucheng123 opened on Feb 6, 2026
  1

• Improve rec-array conformance between anndataR and anndata(py)

  design
  Task

  scverse/anndataR#409 · Filter by author Artur-man opened on Jan 22, 2026
  8

• Awkward array support

  h5ad
  Enhancement

  scverse/anndataR#404 · Filter by author DanielMedic opened on Dec 31, 2025
  2

• UnicodeDecodeError when reading H5AD in Python

  h5adneeds info
  Bug

  scverse/anndataR#400 · Filter by author lazappi opened on Dec 12, 2025
  1

• Add support for Seurat v4 objects

  new featureSeurat
  Enhancement

  scverse/anndataR#399 · Filter by author rainbowkiva opened on Dec 9, 2025
  3

• Error: rownames(X) is not as expected

  SingleCellExperiment
  Bug

  scverse/anndataR#390 · Filter by author YinCY123 opened on Dec 2, 2025
  4

• Assay in SingleCellExperiment not being transposed

  SingleCellExperiment
  Bug

  scverse/anndataR#388 · Filter by author ekageyama opened on Dec 1, 2025
  9

  

• Store an output_class vector somehere?

  developerux
  Enhancement

  scverse/anndataR#385 · Filter by author Artur-man opened on Nov 24, 2025
  1

• Move conversion functions to {zellkonverter}?

  designquestion
  Task

  scverse/anndataR#383 · Filter by author lazappi opened on Nov 20, 2025