Issues

• Changing local_num_threads after Install() of a module that registers a recording backend raises BackendAlreadyRegistered

  nest/nest-simulator#4013 · Filter by author diesmann opened on Nov 10, 2026 · NEST 3.11
  1

• PyNEST declares kernel attributes that the kernel reports only with certain build switches; from nest import * fails

  nest/nest-simulator#4012 · Filter by author diesmann opened on Nov 10, 2026

• MPI: GetConnections() before the first Simulate() leaves rank-local delay extrema; Simulate() deadlocks

  nest/nest-simulator#4008 · Filter by author diesmann opened on Nov 8, 2026

• spatial/test_dumping.py fails under pytest-xdist: four tests share one output file

  nest/nest-simulator#4006 · Filter by author diesmann opened on Nov 8, 2026

• Compressed spikes with MPI: the target-data exchange reads leftover buffer entries; spikes reach wrong targets or NEST crashes

  I: No breaking changeS: HighT: Bug
  nest/nest-simulator#4004 · Filter by author diesmann opened on Nov 7, 2026 · NEST 3.11
  2

• Efficient recording of non-spike events

  T: Enhancement
  Feature

  nest/nest-simulator#3962 · Filter by author leonwoelki opened on Oct 19, 2026

• Tripartite synapse with plasticity reading both astrocyte and postsynaptic neuron state

  S: NormalT: Enhancement
  Feature

  nest/nest-simulator#3961 · Filter by author CarloAS opened on Oct 18, 2026
  2

• Feature: Auto-load NESTML modules at startup

  I: No breaking changeS: NormalstaleT: Enhancement
  nest/nest-simulator#3943 · Filter by author med-ayssar opened on Sep 2, 2026
  3

  

• Clean up dependency management

  S: NormalT: Maintenance
  nest/nest-simulator#3936 · Filter by author terhorstd opened on Aug 21, 2026

• PPA installation on Ubuntu places Python module in site-packages instead of dist-packages, breaking default imports

  S: HighstaleT: Bug
  nest/nest-simulator#3926 · Filter by author carlocastoldi opened on Jul 20, 2026
  2

• MUSIC examples with SLI / Python in examples/ folder

  I: No breaking changeS: NormalstaleT: Maintenance
  nest/nest-simulator#3925 · Filter by author jessica-mitchell opened on Jul 10, 2026
  1

• Modernize some package finding code for third-party libraries

  I: No breaking changeS: NormalstaleT: Maintenance
  nest/nest-simulator#3915 · Filter by author heplesser opened on Jun 28, 2026
  1

• Circular dependencies between libnestutil and nestkernel

  I: No breaking changeS: NormalstaleT: Maintenance
  nest/nest-simulator#3914 · Filter by author heplesser opened on Jun 28, 2026
  1

  

• Circular dependency between nestkernel and models

  I: No breaking changeS: NormalstaleT: Maintenance
  nest/nest-simulator#3905 · Filter by author heplesser opened on Jun 28, 2026
  1

  

• NEST 3.9 aborts in hybrid MPI+OpenMP run under UCX (owner-thread assertion at tag_recv.c:238)

  I: No breaking changeS: HighstaleT: Bug
  nest/nest-simulator#3876 · Filter by author krishnakantsingh14 opened on Jun 17, 2026
  2

• Discuss whether to keep or remove the ignore-and-fire neuron model

  S: NormalstaleT: Maintenance
  nest/nest-simulator#3867 · Filter by author akorgor opened on May 29, 2026
  3

• Python test coverage

  I: No breaking changeS: NormalstaleT: Maintenance
  nest/nest-simulator#3848 · Filter by author terhorstd opened on May 26, 2026
  1

• Review and improve PyNEST examples with latest syntax

  I: No breaking changeS: NormalstaleT: Maintenance
  nest/nest-simulator#3806 · Filter by author jessica-mitchell opened on Apr 20, 2026
  1

• ResetKernel() does not clear state between module loading

  I: No breaking changeS: HighstaleT: Bug
  nest/nest-simulator#3802 · Filter by author clinssen opened on Apr 13, 2026
  11

• Power-law connection weight generator implementation

  S: NormalstaleT: Discussion
  nest/nest-simulator#3799 · Filter by author lhtPeking opened on Apr 4, 2026
  1

• Failing example and missing dependencies

  I: No breaking changeS: HighstaleT: Bug
  nest/nest-simulator#3798 · Filter by author heplesser opened on Mar 30, 2026
  4

  

• Possible error in cloning instructions?

  I: No breaking changeS: HighT: Maintenance
  nest/nest-simulator#3793 · Filter by author heplesser opened on Mar 20, 2026
  4

• Avoid breach of encapsulation in devices' set_status()

  I: No breaking changeS: NormalstaleT: Maintenance
  nest/nest-simulator#3791 · Filter by author heplesser opened on Mar 19, 2026
  1

• Improve implementation of Dictionary

  I: No breaking changeS: NormalstaleT: Discussion
  nest/nest-simulator#3790 · Filter by author heplesser opened on Mar 19, 2026
  1

• NEST Online partly broken in iPython

  I: No breaking changeS: NormalstaleT: Bug
  nest/nest-simulator#3788 · Filter by author heplesser opened on Mar 19, 2026
  1