Log Message:
py-notebook: updated to 6.4.8

6.4.8

Bugs fixed

- Fix to remove potential memory leak on Jupyter Notebooks ZMQChannelHandler code

6.4.7

Bugs fixed

- Fix Chinese punctuation
- Add date field to kernel message header
- Fix deprecation warning

Maintenance and upkeep improvements

- Enforce labels on PRs
- Fix: CI error for python 3.6 & macOS

Other merged PRs

- handle KeyError when get session
- Updated doc for passwd

6.4.6

Bugs fixed

- Fix `asyncio` error when opening notebooks
- Change to use a universal Chinese translation on certain words
- Fix Chinese translation typo
- Fix `send2trash` tests failing on Windows

Maintenance and upkeep improvements

- TST: don't look in user site for serverextensions
- Enable terminal tests as `pywinpty` is ported for python 3.9

6.4.5

Bug fixes

- Recover from failure to render mimetype

Maintenance and upkeep improvements

- Fix crypto handling
- Fix `jupyter_client` warning

Documentation improvements

- Fix nbsphinx settings
- Fully revert the pinning of `nbsphinx` to 0.8.6
- Pin `nbsphinx` to 0.8.6, clean up orphaned resources
- Fix typo in docstring

6.4.4

Documentation improvements

- Update Manual Release Instructions

Other merged PRs

- Use default JupyterLab CSS sanitizer options for Markdown
- Fix syntax highlight

6.4.3

Bugs fixed

- Add @babel/core dependency
- Switch webpack to production mode

Maintenance and upkeep improvements

- Clean up link checking

6.4.2

Bugs fixed

- Add missing file to manifest
- Fix issue 3218
- Fix version of jupyter-packaging in pyproject.toml
- "#element".tooltip is not a function on home page fixed.

Maintenance and upkeep improvements

- Enhancements to the desktop entry
- Add missing spaces to help messages in config file

6.4.0

Bugs fixed

- Fix Handling of Encoded Paths in Save As Dialog
- Fix: split_cell doesn't always split cell
- Correct 'Content-Type' headers
- Fix skipped tests & remove deprecation warnings
- [Gateway] Track only this server's kernels
- Bind the HTTPServer in start

Maintenance and upkeep improvements

- Revert "do not apply asyncio patch for tornado >=6.1"
- Use Jupyter Releaser
- Add Workflow Permissions for Lock Bot
- Fixes related to the recent changes in the documentation
- Add maths checks in CSS reference test
- Add Issue Lock and Answered Bots

Documentation improvements

- Spelling correction
- Minor typographical and comment changes
- Fixes related to the recent changes in the documentation
- Fix readthedocs environment

6.3.0

Merged PRs

* Add square logo and desktop entry files
* Modernize Changelog
* Add missing "import inspect"
* Add Codecov badge to README
* Remove configuration for nosetests from setup.cfg
* Update security.rst
*  Docs-Translations: Updated Hindi and Chinese Readme.md
* Allow /metrics by default if auth is off
* Skip terminal tests on Windows 3.9+ (temporary)
* Update GatewayKernelManager to derive from AsyncMappingKernelManager
* Drop use of deprecated pyzmq.ioloop
* Drop support for Python 3.5
* Allow jupyter_server-based contents managers in notebook
* Russian translation fixes
* Increase culling test idle timeout
* Re-enable support for answer_yes flag
* Replace Travis and Appveyor with Github Actions
* DOC: Server extension, extra docs on configuration/authentication.

6.2.0

Merged PRs

- Increase minimum tornado version
- Adjust skip decorators to avoid remaining dependency on nose
- Ensure that cell ids persist after save
- Add reconnection to Gateway (form nb2kg)
- Fix some typos
- Handle TrashPermissionError, now that it exist

6.1.6

Merged PRs

-  do not require nose for testing
- [docs] Update Chinese and Hindi readme.md
- Add support for creating terminals via GET
- Made doc translations in Hindi and Chinese

6.1.5 is a security release, fixing one vulnerability:

- Fix open redirect vulnerability GHSA-c7vm-f5p4-8fqh (CVE to be assigned)

6.1.4

- Fix broken links to jupyter documentation
- Add additional entries to troubleshooting section
- Revert change in page alignment
- Bug fix: remove double encoding in download files
- Fix typo for Check in zh_CN
- Require a file name in the "Save As" dialog

6.1.3

- Title new buttons with label if action undefined

6.1.2

- Fix russian message format for delete/duplicate actions
- Remove unnecessary import of bind_unix_socket
- Tooltip style scope fix

6.1.1

- Prevent inclusion of requests_unixsocket on Windows

6.1.0

Please note that this repository is currently maintained by a skeleton
crew of maintainers from the Jupyter community. For our approach moving
forward, please see this
[notice](https://github.com/jupyter/notebook#notice) from the README.
Thank you.

Here is an enumeration of changes made since the last release and
included in 6.1.0.

- Remove deprecated encoding parameter for Python 3.9 compatibility.
- Add support for async kernel management
- Fix typo in password_required help message
- Gateway only: Ensure launch and request timeouts are in sync
- Update Markdown Cells example to HTML5 video tag
- Integrated LoginWidget into edit to enable users to logout from the t...
- Update message about minimum Tornado version
- Logged notebook type
- Added nl language
- Add UNIX socket support to notebook server.
- Update CodeMirror dependency
- Tree added download multiple files
- Toolbar buttons tooltip: show help instead of label
- Remove unnecessary import of requests_unixsocket
- Add ability to cull terminals and track last activity
- Code refactoring notebook.js
- Install terminado for docs build
- Convert notifications JS test to selenium
- Add cell attachments to markdown example
- Add Japanese document
- Migrate Move multiselection test to selenium
- Use `cmdtrl-enter` to run a cell
- Fix broken "Raw cell MIME type" dialog
- Make a notebook writable after successful save-as
- Add actual watch script
- Added `--autoreload` flag to `NotebookApp`
- Enable check_origin on gateway websocket communication
- Restore detection of missing terminado package
- Culling: ensure `last_activity` attr exists before use
- Added functionality to allow filter kernels by Jupyter Enterprise Gat...
- 'Play' icon for run-cell toolbar button
- Bump minimum version of jQuery to 3.5.0
- Remove old JS markdown tests, add a new one in selenium
- Add support for more RTL languages
- Make markdown cells stay RTL in edit mode
- Unforce RTL output display
- Fixed multicursor backspacing
- Implemented Split Cell for multicursor
- Alignment issue \[FIXED\]
- MathJax: Support for `\gdef`
- Another (Minor) Duplicate Code Reduction
- Update readme regarding maintenance
- Document contents chunks
- Backspace deletes empty line
- The dropdown submenu at notebook page is not keyboard accessible
- Tooltips visible through keyboard navigation for specified buttons
- Fix for recursive symlink
- Fix for the terminal shutdown issue
- Add japanese translation files
- Workaround for socket permission errors on Cygwin
- Implement optional markdown header and footer files
- Remove double link when using `custom_display_url`
- Respect `cell.is_editable` during find-and-replace
- Fix exception causes all over the codebase
- Improve login shell heuristics
- Added support for `JUPYTER_TOKEN_FILE`
- Kill notebook itself when server cull idle kernel
- Implement password hashing with bcrypt
- Fix broken links
- Russian internationalization support
- Add a metadata tag to override notebook direction (ltr/rtl)
- Paste two images from clipboard in markdown cell
- Add keyboard shortcuts to menu dropdowns
- Update codemirror to `5.56.0+components1`