Issues

• read_nwb should read legacy Zarr v2 files with NWBZarrV2IO (hdmf-zarr 0.14)

  NeurodataWithoutBorders/pynwb#2265 · Filter by author rly opened on Sep 18, 2026

• [Feature]: Update read_nwb to support Zarr V3

  category: enhancementpriority: low
  NeurodataWithoutBorders/pynwb#2259 · Filter by author oruebel opened on Sep 1, 2026

• TimeSeries subtypes with a fixed unit should not default conversion and offset

  NeurodataWithoutBorders/pynwb#2257 · Filter by author h-mayorquin opened on Sep 1, 2026

• Simplify the HERD tutorial snippet once hdmf-dev/hdmf#1568 and #1569 are released

  topic: docstopic: HDMF
  NeurodataWithoutBorders/pynwb#2254 · Filter by author rly opened on Aug 29, 2026

• [Bug]: NWBFile.objects is cached on first access and never invalidated

  NeurodataWithoutBorders/pynwb#2242 · Filter by author pauladkisson opened on Aug 12, 2026

• Remove the Windows ROS3 shutdown-deadlock CI workaround once HDF5 fixes it upstream

  topic: testing
  NeurodataWithoutBorders/pynwb#2231 · Filter by author rly opened on Jul 24, 2026

• Units waveforms dimension order is mislabeled in add_unit docstring and TestUnitsIO (actual order is (num_spikes, num_electrodes, num_samples))

  NeurodataWithoutBorders/pynwb#2220 · Filter by author ehennestad opened on Jul 9, 2026
  1

• [Bug]: Validator issue for nwbfile using ndx-multisubjects and ndx-sound

  NeurodataWithoutBorders/pynwb#2219 · Filter by author nehatk17 opened on Jul 6, 2026
  1

• [Feature]: Add z_translation to CorrectedImageStack

  NeurodataWithoutBorders/pynwb#2218 · Filter by author sumiya-kuroda opened on Jul 3, 2026

• [Feature]: Refactor src/pynwb/__init__.py to ease readability and maintainance

  category: enhancementpriority: low
  NeurodataWithoutBorders/pynwb#2216 · Filter by author oruebel opened on Jul 1, 2026

• Clarify intended behavior of ImageSeries.num_samples for internal (non-external) data

  category: questionpriority: medium
  NeurodataWithoutBorders/pynwb#2215 · Filter by author ehennestad opened on Jul 1, 2026
  4

• TimeIntervals.get_duration / get_starting_time return NaN with NaN start/stop times

  category: bugpriority: high
  Bug

  NeurodataWithoutBorders/pynwb#2212 · Filter by author bendichter opened on Jun 30, 2026

• [Documentation]: Create a guide for upgrading legacy behavior / data organization to new

  priority: lowtopic: docs
  NeurodataWithoutBorders/pynwb#2198 · Filter by author rly opened on Jun 17, 2026

• CI failure: TypeError writing image/ophys types with uint64 data (DatasetBuilder rejects numpy.uint64 scalar)

  category: bugpriority: high
  NeurodataWithoutBorders/pynwb#2193 · Filter by author rly opened on May 15, 2026

• [Proposal] Keep pynwb's public API signatures backend-agnostic

  NeurodataWithoutBorders/pynwb#2188 · Filter by author h-mayorquin opened on May 13, 2026

• [Documentation]: add LINDI to streaming docs

  NeurodataWithoutBorders/pynwb#2170 · Filter by author bendichter opened on Mar 6, 2026

• [Feature]: Opening nwb files with different extension versions

  category: enhancementpriority: medium
  NeurodataWithoutBorders/pynwb#2163 · Filter by author samuelbray32 opened on Jan 28, 2026
  5

  

• [Feature]: Add MeaningsTables to all DynamicTable rather than just EventsTable

  NeurodataWithoutBorders/pynwb#2148 · Filter by author VisLab opened on Dec 10, 2025
  3

• [Feature]: Add support for Python 3.14

  category: enhancementpriority: mediumtopic: dependenciestopic: docs
  NeurodataWithoutBorders/pynwb#2143 · Filter by author rly opened on Nov 5, 2025

• [Bug]: pynwb.validate can not check with NWBZarrIO

  NeurodataWithoutBorders/pynwb#2131 · Filter by author MGAMZ opened on Sep 9, 2025
  1

• ImagingPlane API docs claims that excitation lambda can be None in contradiction with the schema

  topic: docs
  NeurodataWithoutBorders/pynwb#2128 · Filter by author h-mayorquin opened on Aug 19, 2025
  2

• [Bug]: FutureWarning from pandas with python 3.14 when running tests

  category: bugpriority: low
  NeurodataWithoutBorders/pynwb#2126 · Filter by author t-b opened on Aug 19, 2025
  2

  

• [Feature]: Importing pynwb creates redundant type maps

  category: enhancementpriority: low
  NeurodataWithoutBorders/pynwb#2120 · Filter by author rly opened on Aug 13, 2025
  1

• [Feature]: Clean up HDMFIO.load_namespaces call

  category: enhancementpriority: lowtopic: validator
  NeurodataWithoutBorders/pynwb#2119 · Filter by author rly opened on Aug 11, 2025
  1

  

• [Bug]: Cannot set optional fields with default values to None

  category: bugpriority: low
  NeurodataWithoutBorders/pynwb#2105 · Filter by author rly opened on Jun 26, 2025 · Future