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6.31.0

IPykernel 6.31.0 fixes an issue where display outputs such as Matplotlib plots were not included when using %notebook magic to save sessions as .ipynb files. This is enabled using the traitlet ZMQDisplayPublisher.store_display_history which defaults to the previous behaviour of False. This is a minor release rather than a patch release due to the addition of the new traitlet.

Enhancements made

Backport PR #1435: Store display outputs in history for %notebook magic #1461 (@Darshan808)

Maintenance and upkeep improvements

Backport PR #1453: update tests for 3.14 #1460 (@minrk)
Backport PR #1444: Test on PyPy 3.11 instead of 3.10 #1459 (@cclauss)
6.x: Update PEP-639 license values in pyproject.toml #1446 (@bollwyvl)
Backport PR #1411: Replace @flaky.flaky decorate with pytest fixture #1421 (@mgorny)

Contributors to this release

`v6.30.1`

This is a bugfix release to fix a significant bug introduced in 6.30.0 that allowed control messages to be handled concurrently rather than sequentially which broke debugging in JupyterLab and VSCode.

Bugs fixed

Correct use of asyncio.Lock to process a single control message at a time #1416 (@ianthomas23)

Maintenance and upkeep improvements

Backport: Remove links in changelog to github milestones that no longer exist #1417 (@ianthomas23)

Contributors to this release

@ianthomas23

`v6.30.0`

This release fixes three bugs but is primarily a maintenance release bringing support for Python 3.13 and updating dependencies. It does not include subshells which will be in the upcoming 7.0.0 release. Users and downstream libraries that wish to avoid subshells should pin to ipykernel < 7.

Enhancements made

Remove control queue #1210 (@ianthomas23)

Bugs fixed

Set shell idle when message skipped by "should_handle" in "dispatch_shell" #1395 (@dby-tmwctw)
Fixed error accessing sys.stdout/sys.stderr when those are None #1247 (@gregory-shklover)
Allow datetime or str in test_sequential_control_messages #1219 (@ianthomas23)

Maintenance and upkeep improvements

6.x backports #1406 (@ianthomas23)
Update pre-commit and github actions #1401 (@ianthomas23)
Test more python versions on 6.x branch #1398 (@davidbrochart)
Backports and extra changes to fix CI on 6.x branch #1390 (@ianthomas23)
Remove nose import. #1368 (@Carreau)
Test more python versions #1358 (@davidbrochart)
Fix expected text depending on IPython version. #1354 (@Carreau)
Licence :: * trove classifiers are deprecated #1348 (@Carreau)
Try to fix spyder kernel install #1337 (@Carreau)
Remove test_check job #1335 (@Carreau)
Don't rerun test with --lf it hides failures. #1324 (@Carreau)
Remove link to numfocus for funding. #1320 (@Carreau)
Remove downstream_check #1318 (@Carreau)
Copy payloadpage.page from IPython #1317 (@Carreau)
Remove base setup #1299 (@davidbrochart)
Rely on intrsphinx_registry to keep intersphinx up to date. #1290 (@Carreau)
Drop support for Python 3.8 #1284 (@ianthomas23)
Start testing on 3.13 #1277 (@Carreau)
Build docs on ubuntu #1257 (@blink1073)
Avoid a DeprecationWarning on Python 3.13+ #1248 (@hroncok)
Catch IPython 8.24 DeprecationWarnings #1242 (@s-t-e-v-e-n-k)
Add compat with pytest 8 #1231 (@blink1073)
Set all min deps #1229 (@blink1073)

Contributors to this release

`v6.29.5`

Bugs fixed

Fix use of "%matplotlib osx" #1237 (@ianthomas23)

Maintenance and upkeep improvements

[6.x] Update Release Scripts #1251 (@blink1073)

Contributors to this release

@blink1073 | @ianthomas23

`v6.29.4`

Bugs fixed

Fix side effect import for pickleutil #1216 (@blink1073)

Maintenance and upkeep improvements

Do not import debugger/debugpy unless needed #1223 (@krassowski)

Contributors to this release

@agronholm | @blink1073 | @davidbrochart | @krassowski | @minrk

`v6.29.3`

Enhancements made

Eventloop scheduling improvements for stop_on_error_timeout and schedule_next #1212 (@jdranczewski)

Bugs fixed

Disable frozen modules by default, add a toggle #1213 (@krassowski)

Maintenance and upkeep improvements

Fix typings and update project urls #1214 (@blink1073)
Unpin pytest-asyncio and update ruff config #1209 (@blink1073)

Documentation improvements

Correct spelling mistake #1208 (@joouha)

Contributors to this release

@blink1073 | @ccordoba12 | @jdranczewski | @joouha | @krassowski

`v6.29.2`

Bugs fixed

Fix: ipykernel_launcher, delete absolute sys.path[0] #1206 (@stdll00)

Maintenance and upkeep improvements

Re-enable skipped debugger test #1207 (@ianthomas23)

Contributors to this release

@ianthomas23 | @stdll00

`v6.29.1`

Bugs fixed

fix: on exception, return a 0, so that the "sum" still computes #1204 (@petervandenabeele)
Fix handling of "silent" in execute request #1200 (@Haadem)

Maintenance and upkeep improvements

chore: update pre-commit hooks #1205 (@pre-commit-ci)
Do git ignore of /node_modules/.cache #1203 (@petervandenabeele)
Bump the actions group with 1 update #1201 (@dependabot)

Contributors to this release

@dependabot | @Haadem | @petervandenabeele | @pre-commit-ci

`v6.29.0`

Enhancements made

Always set debugger to true in kernelspec #1191 (@ianthomas23)

Bugs fixed

Revert "Enable ProactorEventLoop on windows for ipykernel" #1194 (@blink1073)
Make outputs go to correct cell when generated in threads/asyncio #1186 (@krassowski)

Maintenance and upkeep improvements

Pin pytest-asyncio to 0.23.2 #1189 (@ianthomas23)
chore: update pre-commit hooks #1187 (@pre-commit-ci)

Contributors to this release

@blink1073 | @ianthomas23 | @krassowski | @pre-commit-ci

`v6.28.0`

Enhancements made

Enable ProactorEventLoop on windows for ipykernel #1184 (@NewUserHa)
Adds a flag in debug_info for the copyToGlobals support #1099 (@brichet)

Maintenance and upkeep improvements

Support python 3.12 #1185 (@blink1073)
Bump actions/setup-python from 4 to 5 #1181 (@dependabot)
chore: update pre-commit hooks #1179 (@pre-commit-ci)
Refactor execute_request to reduce redundancy and improve consistency #1177 (@jjvraw)

Documentation improvements

Update pytest commands in README #1178 (@ianthomas23)

Contributors to this release

`v6.27.1`

Bugs fixed

Fix edit magic payload type #1171 (@blink1073)

Contributors to this release

@blink1073

`v6.27.0`

Enhancements made

Extend argument handling of do_execute with cell metadata #1169 (@jjvraw)

Maintenance and upkeep improvements

Update ruff and typings #1167 (@blink1073)
Clean up ruff config #1165 (@blink1073)
chore: update pre-commit hooks #1164 (@pre-commit-ci)
Clean up typing config #1163 (@blink1073)
Update typing for traitlets 5.13 #1162 (@blink1073)
Adopt ruff format #1161 (@blink1073)
Update typing for jupyter_client 8.5 #1160 (@blink1073)

Contributors to this release

@blink1073 | @jjvraw | @pre-commit-ci

`v6.26.0`

Maintenance and upkeep improvements

Update lint deps and add more typing #1156 (@blink1073)
Update typing for traitlets 5.11 #1154 (@blink1073)
chore: update pre-commit hooks #1153 (@pre-commit-ci)
Update IPython Typing Usage #1152 (@blink1073)
Update typing #1150 (@blink1073)
Use sp-repo-review #1146 (@blink1073)
Bump actions/checkout from 3 to 4 #1144 (@dependabot)

Contributors to this release

@blink1073 | @dependabot | @pre-commit-ci

`v6.25.2`

Bugs fixed

Make iostream shutdown more robust #1143 (@blink1073)
Don't call QApplication.setQuitOnLastWindowClosed(False). #1142 (@anntzer)
Avoid starting IOPub background thread after it's been stopped #1137 (@minrk)

Contributors to this release

@anntzer | @blink1073 | @ccordoba12 | @minrk

`v6.25.1`

Bugs fixed

Modifying debugger to return the same breakpoints in 'debugInfo' response as 'setBreakpoints' #1140 (@vaishnavi17)

Maintenance and upkeep improvements

Contributors to this release

@pre-commit-ci | @vaishnavi17

`v6.25.0`

Enhancements made

feat: let display hook handle clear_output #1135 (@maartenbreddels)

Bugs fixed

Merge connection info into existing connection file if it already exists #1133 (@jasongrout)

Maintenance and upkeep improvements

Clean up lint #1134 (@blink1073)

Contributors to this release

@blink1073 | @fecet | @jasongrout | @maartenbreddels | @pre-commit-ci

`v6.24.0`

New features added

Let get_parent decide the channel to get parent header #1128 (@dby-tmwctw)

Bugs fixed

Bugfix: binary stdout/stderr handling #1129 (@arieleiz)

Contributors to this release

@arieleiz | @dby-tmwctw | @minrk

`v6.23.3`

Bugs fixed

Check existence of connection_file before writing #1127 (@fecet)

Contributors to this release

@blink1073 | @fecet

`v6.23.2`

Bugs fixed

Avoid ResourceWarning on implicitly closed event pipe sockets #1125 (@minrk)
fix: protect stdout/stderr restoration in InProcessKernel._redirected_io #1122 (@charles-cooper)

Maintenance and upkeep improvements

Contributors to this release

@charles-cooper | @minrk | @pre-commit-ci

`v6.23.1`

Bugs fixed

Avoid echoing onto a captured FD #1111 (@minrk)

Maintenance and upkeep improvements

update readthedocs env to 3.11 #1117 (@minrk)

Contributors to this release

@minrk

`v6.23.0`

Enhancements made

Support control<>iopub messages to e.g. unblock comm_msg from command execution #1114 (@tkrabel-db)
Add outstream hook similar to display publisher #1110 (@maartenbreddels)

Maintenance and upkeep improvements

Use local coverage #1109 (@blink1073)

Contributors to this release

@blink1073 | @maartenbreddels | @pre-commit-ci | @tkrabel-db

`v6.22.0`

Bugs fixed

Deprecate Comm class + Fix incompatibility with ipywidgets #1097 (@martinRenou)

Maintenance and upkeep improvements

Contributors to this release

@martinRenou | @pre-commit-ci

`v6.21.3`

Bugs fixed

Fix interrupt reply #1101 (@garlandz-db)

Maintenance and upkeep improvements

Update docs link #1103 (@blink1073)
Add license #1098 (@dcsaba89)

Documentation improvements

Update changelog for markdown typo #1096 (@mlucool)

Contributors to this release