Add copy and paste commands to terminal context menu #13535 (@krassowski)
Turn terminal links into anchors using xterm addon #13645 (@mgcth)
Allows to pause the execution during debug #13494 (@brichet)
Ask confirmation when closing a document #13489 (@fcollonval)
Add events service #13465 (@fcollonval)
Add notification queue and display using toast #12959 (@telamonian)
Add announcements #13444 (@fcollonval)
Add line history to Stdin cell outputs #13431 (@fcollonval)
Add user configuration for additional schemes for the sanitizer plugin #13419 (@fcollonval)
User service #12926 (@hbcarlos)

Enhancements made

Expose contentVisibility widget hiding mode #13860 (@fcollonval)
default locale will use OS default locale #13721 (@fcollonval)
Enable strict CSS containment for MainAreaWidget #13811 (@krassowski)
User defined default viewer take precedence for rendered factory #11541 (@fcollonval)
Remove not needed Completer.IRenderer.sanitizer #13700 (@fcollonval)
Contain the tabs within the tabbar (do not use translation transform) #13671 (@krassowski)
Sanitize notification message #13510 (@fcollonval)
Use more the contextual collaborative model attribute #13564 (@fcollonval)
Add lumino with support for plugin deactivation #13541 (@fcollonval)
Sets whether the model is collaborative or not when registering its factory #13526 (@hbcarlos)
RTC: Move user name to user panel #13517 (@martinRenou)
jupyter_server_ydoc>=0.6.0,<0.7.0 #13499 (@fcollonval)
Define file or activity icons color as static #13408 (@fcollonval)
Added collaborative_document_save_de… #13404 (@fcollonval)
Add a hover effect to plugin list entries #13384 (@krassowski)
Bump Lumino 1.x #13378 (@fcollonval)
Store original path as returned from contents API in the Contents.IModel #13216 (@krassowski)
Update document dirty logic for RTC #13364 (@davidbrochart)
Store document info in the state not in a separate context map out of the document interface. #13317 (@fcollonval)
Use file ID #13246 (@davidbrochart)
Relax doc provider API #13214 (@fcollonval)
Avoids restoring widget in dock panel when first loading in 'single-document' mode #13314 (@brichet)
Fix illegible white on yellow text of stacktrace in dark theme #13249 (@NikolayXHD)
Use settings icons for 6 plugins #13298 (@krassowski)
Do not run galata in .ipynb_checkpoints #13297 (@krassowski)
Allow empty notebook #13296 (@martinRenou)
Optimize text mimerenderer: ansi vs autolink #13202 (@vidartf)
Remove Yjs locking mechanism #13222 (@davidbrochart)

Bugs fixed

Define colour and background for filebrowser edit field #13895 (@krassowski)
Reset execution indicator state when kernel restarts #13832 (@krassowski)
Restore blueprint focus overrides on 3.x branch #13879 (@krassowski)
Restore partial border effect for menu #13878 (@krassowski)
Pin jupyter_ydoc #13863 (@fcollonval)
Fix preferred_dir for examples #13788 (@fcollonval)
Bump canvas to version with nodejs 18 binaries #13783 (@fcollonval)
Explain why cell model may be missing in cell toolbar #13763 (@krassowski)
Fix handling of settingEditorType #13761 (@jtpio)
Fix execution indicator in RTC mode #13693 (@trungleduc)
Force jupyter-server v1 to check against notebook v6 #13716 (@fcollonval)
Write the browser open files for test #13634 (@fcollonval)
Add the scaleFactor value from the embed options when creating the PNG representation for a Vega-based chart #13610 (@joaopalmeiro)
Does not prevent default behavior when shift-clicking #13616 (@jmk89)
Do not load CSS of disabled federated extensions #11962 (@jtpio)
use jupyter_config_dir instead of config_path[0] for workspaces, settings #13589 (@minrk)
Bump @lumino/application #13590 (@fcollonval)
Restores the appearance of the settingeditor's input focus #13554 (@brichet)
Fix a wrong argument when calling 'renderMimeVariable' #13531 (@brichet)
fix size of toc running indicator #13568 (@uenot)
Fixes backward-incompatible changes for 3.6 #13560 (@hbcarlos)
Make focus visible (mostly CSS) #13415 (@gabalafou)
Set corrections to icons and switch colors #13500 (@HaudinFlorence)
Default IDocumentProviderFactory.IOptions generic to ISharedDocument #13490 (@jtpio)
Use same key for saving user info in local store #13482 (@hbcarlos)
Set fallback values for icons colors. #13468 (@HaudinFlorence)
Backport #13458 on branch 3.6.x (Enable document model specific collaboration) #13480 (@fcollonval)
Share attachments #13450 (@hbcarlos)
Fix key name for nbformat minor version #13377 (@fcollonval)
Remove metadata entries #13371 (@hbcarlos)
Updates JSONEditor's source only when there is an active cell or an active notebook panel #13308 (@hbcarlos)
Avoids use of @deprecated to refer to a parameter #13309 (@JasonWeill)
Fix border-radius does not follow css variable #13289 (@vthinkxie)
Set isUntitled to false on document path changes #13268 (@fcollonval)
Remove some unused CSS styles and fix icon alignment in plugin list #13255 (@krassowski)
Fix notebook trust in RTC #13274 (@davidbrochart)
Don't dispose the notebook metadata editor on active cell change #13259 (@fcollonval)

Maintenance and upkeep improvements

Bump @lumino/widgets to 1.37.1 on 3.6 branch #13829 (@krassowski)
Clean examples #13812 (@fcollonval)
Added config to link ts source maps #13765 (@3coins)
Fix preferred_dir for examples #13788 (@fcollonval)
Bump canvas to version with nodejs 18 binaries #13783 (@fcollonval)
Drop the dependency on @jupyterlab/buildutils in @jupyterlab/builder #13741 (@jtpio)
Remove empty button in the notebook toolbar #13691 (@trungleduc)
Pin check release action without pyproject validation #13714 (@fcollonval)
Update copyright date to 2023 in the about dialog #13708 (@jtpio)
Fix links in CHANGELOG.md #13698 (@jtpio)
Write the browser open files for test #13634 (@fcollonval)
Bump sanitize-html to 2.7.3 #13509 (@fcollonval)
Depend on @jupyter/ydoc instead of @jupyter-notebook/ydoc #13506 (@jtpio)
Fix Python test dependencies #13508 (@fcollonval)
Require jupyter-server-ydoc >=0.5.1 #13479 (@fcollonval)
Require jupyter_server_ydoc >=0.4.0 #13437 (@hbcarlos)
Use more consistent naming for user service #13435 (@fcollonval)
Deprecate managing source extensions with jupyter labextension #13424 (@jtpio)
Bump jupyter_server_ydoc #13407 (@fcollonval)
tomllib is in stdlib in Python 3.11+ #13405 (@fcollonval)
Extract @jupyterlab/shared-models to @jupyter/ydoc #13398 (@fcollonval)
Integrity check does not clean style import when emptied #13367 (@fcollonval)
Fix the examples with jupyter-server v2 #13336 (@fcollonval)
Check a core path is actually a package #13346 (@fcollonval)
Removes empty requires list #13334 (@hbcarlos)
Fix Binder for jupyter-server v2 #13344 (@fcollonval)
Switch to releaser v2 #13322 (@blink1073)
Fix memory leaks #13229 (@fcollonval)
Update branch configuration #13220 (@fcollonval)

Documentation improvements

Force jupyter-server v1 to check against notebook v6 #13716 (@fcollonval)
Fix links in CHANGELOG.md #13698 (@jtpio)
Do not load CSS of disabled federated extensions #11962 (@jtpio)
Copy edit for privacy policy docs #13594 (@JasonWeill)
Bug fixes/revisions for the Lab extension tutorial #13593 (@ericsnekbytes)
Documentation RTC and user service (#13578) #13591 (@hbcarlos)
Forbid using RTC mode without Jupyter Server v2. #13472 (@fcollonval)
Remove broken URL #13445 (@fcollonval)
Move configuration to jupyter-server-ydoc #13425 (@fcollonval)
Update the tutorial to reflect the changes in the latest cookiecutter… #13417 (@frivas-at-navteca)
Fix Binder for jupyter-server v2 #13344 (@fcollonval)
Correct starting docs: working directory path sample code #13261 (@hugetim)
Backporting IUser/Collaboration PRs #13242 (@martinRenou)
Update example documentation: lab -> app #13223 (@davidbrochart)
Remove Yjs locking mechanism #13222 (@davidbrochart)
Update branch configuration #13220 (@fcollonval)
Update README.md #13257 (@liliyao2022)

API and Breaking Changes

Enable document model specific collaboration #13480 (@fcollonval)
Improve document dirty logic for RTC #13364 (@davidbrochart)
Store document info in the state not in a separate context map out of the document interface. #13317 (@fcollonval)
Remove Yjs locking mechanism #13222 (@davidbrochart)
Move configuration to jupyter-server-ydoc #13425 (@fcollonval)
Extract @jupyterlab/shared-models to @jupyter/ydoc #13398 (@fcollonval)