Jupyter-server

([Full Changelog](https://github.com/jupyter-server/jupyter_server/compare/v1.16.0...2b296099777d50aa86f67faf94d5cbfde906b169))

Enhancements made

- Add the root_dir value to the logging message in case of non compliant preferred_dir [804](https://github.com/jupyter-server/jupyter_server/pull/804) ([echarles](https://github.com/echarles))

Bugs fixed

- missing required arguments in utils.fetch [798](https://github.com/jupyter-server/jupyter_server/pull/798) ([minrk](https://github.com/minrk))

Maintenance and upkeep improvements

- Add helper jobs for branch protection [797](https://github.com/jupyter-server/jupyter_server/pull/797) ([blink1073](https://github.com/blink1073))
- \[pre-commit.ci\] pre-commit autoupdate [793](https://github.com/jupyter-server/jupyter_server/pull/793) ([pre-commit-ci\[bot\]](https://github.com/apps/pre-commit-ci))
- Update branch references and links [791](https://github.com/jupyter-server/jupyter_server/pull/791) ([blink1073](https://github.com/blink1073))

Contributors to this release

([GitHub contributors page for this release](https://github.com/jupyter-server/jupyter_server/graphs/contributors?from=2022-03-29&to=2022-04-27&type=c))

[blink1073](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Ablink1073+updated%3A2022-03-29..2022-04-27&type=Issues) | [codecov-commenter](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Acodecov-commenter+updated%3A2022-03-29..2022-04-27&type=Issues) | [davidbrochart](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Adavidbrochart+updated%3A2022-03-29..2022-04-27&type=Issues) | [echarles](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Aecharles+updated%3A2022-03-29..2022-04-27&type=Issues) | [kevin-bates](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Akevin-bates+updated%3A2022-03-29..2022-04-27&type=Issues) | [meeseeksdev](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Ameeseeksdev+updated%3A2022-03-29..2022-04-27&type=Issues) | [meeseeksmachine](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Ameeseeksmachine+updated%3A2022-03-29..2022-04-27&type=Issues) | [Wh1isper](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3AWh1isper+updated%3A2022-03-29..2022-04-27&type=Issues) | [Zsailer](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3AZsailer+updated%3A2022-03-29..2022-04-27&type=Issues)

([Full Changelog](https://github.com/jupyter-server/jupyter_server/compare/v1.15.6...d32b887ae2c3b77fe3ae67ba79c3d3c6713c0d8a))

New features added

- add hook to observe pending sessions [751](https://github.com/jupyter-server/jupyter_server/pull/751) ([Zsailer](https://github.com/Zsailer))

Enhancements made

- Add `max-age` Cache-Control header to kernel logos [760](https://github.com/jupyter-server/jupyter_server/pull/760) ([divyansshhh](https://github.com/divyansshhh))

Bugs fixed

- Regression in connection URL calculation in ServerApp [761](https://github.com/jupyter-server/jupyter_server/pull/761) ([jhamet93](https://github.com/jhamet93))
- Include explicit package data [757](https://github.com/jupyter-server/jupyter_server/pull/757) ([blink1073](https://github.com/blink1073))
- Ensure terminal cwd exists [755](https://github.com/jupyter-server/jupyter_server/pull/755) ([fcollonval](https://github.com/fcollonval))
- make 'cwd' param for TerminalManager absolute [749](https://github.com/jupyter-server/jupyter_server/pull/749) ([rccern](https://github.com/rccern))
- wait to cleanup kernels after kernel is finished pending [748](https://github.com/jupyter-server/jupyter_server/pull/748) ([Zsailer](https://github.com/Zsailer))

Maintenance and upkeep improvements

- Skip jsonschema in CI [766](https://github.com/jupyter-server/jupyter_server/pull/766) ([blink1073](https://github.com/blink1073))
- Remove redundant job and problematic check [765](https://github.com/jupyter-server/jupyter_server/pull/765) ([blink1073](https://github.com/blink1073))
- Update pre-commit [764](https://github.com/jupyter-server/jupyter_server/pull/764) ([blink1073](https://github.com/blink1073))
- Install pre-commit automatically [763](https://github.com/jupyter-server/jupyter_server/pull/763) ([blink1073](https://github.com/blink1073))
- Add pytest opts and use isort [762](https://github.com/jupyter-server/jupyter_server/pull/762) ([blink1073](https://github.com/blink1073))
- Ensure minimal nbconvert support jinja2 v2 & v3 [756](https://github.com/jupyter-server/jupyter_server/pull/756) ([fcollonval](https://github.com/fcollonval))
- Fix error handler in simple extension examples [750](https://github.com/jupyter-server/jupyter_server/pull/750) ([andreyvelich](https://github.com/andreyvelich))
- Clean up workflows [747](https://github.com/jupyter-server/jupyter_server/pull/747) ([blink1073](https://github.com/blink1073))
- Remove Redundant Dir_Exists Invocation When Creating New Files with ContentsManager [720](https://github.com/jupyter-server/jupyter_server/pull/720) ([jhamet93](https://github.com/jhamet93))

Other merged PRs

- Handle importstring pre/post save hooks [754](https://github.com/jupyter-server/jupyter_server/pull/754) ([dleen](https://github.com/dleen))

Contributors to this release

([GitHub contributors page for this release](https://github.com/jupyter-server/jupyter_server/graphs/contributors?from=2022-03-16&to=2022-03-29&type=c))

[andreyvelich](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Aandreyvelich+updated%3A2022-03-16..2022-03-29&type=Issues) | [blink1073](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Ablink1073+updated%3A2022-03-16..2022-03-29&type=Issues) | [codecov-commenter](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Acodecov-commenter+updated%3A2022-03-16..2022-03-29&type=Issues) | [divyansshhh](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Adivyansshhh+updated%3A2022-03-16..2022-03-29&type=Issues) | [dleen](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Adleen+updated%3A2022-03-16..2022-03-29&type=Issues) | [fcollonval](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Afcollonval+updated%3A2022-03-16..2022-03-29&type=Issues) | [jhamet93](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Ajhamet93+updated%3A2022-03-16..2022-03-29&type=Issues) | [meeseeksdev](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Ameeseeksdev+updated%3A2022-03-16..2022-03-29&type=Issues) | [minrk](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Aminrk+updated%3A2022-03-16..2022-03-29&type=Issues) | [rccern](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Arccern+updated%3A2022-03-16..2022-03-29&type=Issues) | [welcome](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Awelcome+updated%3A2022-03-16..2022-03-29&type=Issues) | [Zsailer](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3AZsailer+updated%3A2022-03-16..2022-03-29&type=Issues)

([Full Changelog](https://github.com/jupyter-server/jupyter_server/compare/v1.15.5...7fbaa767c71302cc756bdf1fb11fcbf1b3768dcc))

Bugs fixed

- Missing warning when no authorizer in found ZMQ handlers [744](https://github.com/jupyter-server/jupyter_server/pull/744) ([Zsailer](https://github.com/Zsailer))

Maintenance and upkeep improvements

- More CI Cleanup [742](https://github.com/jupyter-server/jupyter_server/pull/742) ([blink1073](https://github.com/blink1073))
- Clean up downstream tests [741](https://github.com/jupyter-server/jupyter_server/pull/741) ([blink1073](https://github.com/blink1073))

Contributors to this release

([GitHub contributors page for this release](https://github.com/jupyter-server/jupyter_server/graphs/contributors?from=2022-03-16&to=2022-03-16&type=c))

[blink1073](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Ablink1073+updated%3A2022-03-16..2022-03-16&type=Issues) | [codecov-commenter](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Acodecov-commenter+updated%3A2022-03-16..2022-03-16&type=Issues) | [Zsailer](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3AZsailer+updated%3A2022-03-16..2022-03-16&type=Issues)

([Full Changelog](https://github.com/jupyter-server/jupyter_server/compare/v1.15.4...67f6140ebca60bfde0fb068f10b428320c6c67cd))

Bugs fixed

- Relax type checking on ExtensionApp.serverapp [739](https://github.com/jupyter-server/jupyter_server/pull/739) ([minrk](https://github.com/minrk))
- raise no-authorization warning once and allow disabled authorization [738](https://github.com/jupyter-server/jupyter_server/pull/738) ([Zsailer](https://github.com/Zsailer))

Maintenance and upkeep improvements

- Fix sdist test [736](https://github.com/jupyter-server/jupyter_server/pull/736) ([blink1073](https://github.com/blink1073))

Contributors to this release

([GitHub contributors page for this release](https://github.com/jupyter-server/jupyter_server/graphs/contributors?from=2022-03-15&to=2022-03-16&type=c))

[blink1073](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Ablink1073+updated%3A2022-03-15..2022-03-16&type=Issues) | [codecov-commenter](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Acodecov-commenter+updated%3A2022-03-15..2022-03-16&type=Issues) | [minrk](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Aminrk+updated%3A2022-03-15..2022-03-16&type=Issues) | [Zsailer](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3AZsailer+updated%3A2022-03-15..2022-03-16&type=Issues)

([Full Changelog](https://github.com/jupyter-server/jupyter_server/compare/v1.15.2...461b55146888b58a84c6cfc70c9bbfdb3e8d6aba))

Bugs fixed

- Fix server-extension paths (3rd time's the charm) [734](https://github.com/jupyter-server/jupyter_server/pull/734) ([minrk](https://github.com/minrk))
- Revert "Server extension paths (730)" [732](https://github.com/jupyter-server/jupyter_server/pull/732) ([blink1073](https://github.com/blink1073))

Maintenance and upkeep improvements

- Avoid usage of ipython_genutils [718](https://github.com/jupyter-server/jupyter_server/pull/718) ([blink1073](https://github.com/blink1073))

Contributors to this release

([GitHub contributors page for this release](https://github.com/jupyter-server/jupyter_server/graphs/contributors?from=2022-03-14&to=2022-03-14&type=c))

[blink1073](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Ablink1073+updated%3A2022-03-14..2022-03-14&type=Issues) | [codecov-commenter](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Acodecov-commenter+updated%3A2022-03-14..2022-03-14&type=Issues) | [minrk](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Aminrk+updated%3A2022-03-14..2022-03-14&type=Issues)

([Full Changelog](https://github.com/jupyter-server/jupyter_server/compare/v1.15.1...9711822e157bd2ff2d4f8abe4c12a013223230e0))

Bugs fixed

- Server extension paths [730](https://github.com/jupyter-server/jupyter_server/pull/730) ([minrk](https://github.com/minrk))
- allow handlers to work without an authorizer in the Tornado settings [717](https://github.com/jupyter-server/jupyter_server/pull/717) ([Zsailer](https://github.com/Zsailer))

Maintenance and upkeep improvements

- Skip nbclassic downstream tests for now [725](https://github.com/jupyter-server/jupyter_server/pull/725) ([blink1073](https://github.com/blink1073))

Contributors to this release

([GitHub contributors page for this release](https://github.com/jupyter-server/jupyter_server/graphs/contributors?from=2022-03-14&to=2022-03-14&type=c))

[blink1073](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Ablink1073+updated%3A2022-03-14..2022-03-14&type=Issues) | [minrk](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3Aminrk+updated%3A2022-03-14..2022-03-14&type=Issues) | [Zsailer](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_server+involves%3AZsailer+updated%3A2022-03-14..2022-03-14&type=Issues)