5.5.0

• Prefer ip address over hostname when available (#3593).
• Add changelog for notebook 5.5 (#3590).
• Fix for reload button no longer works issue (#3589).
• "require" pyzmq>=17 (#3586).
• Documentation updates and organisation (#3584).
• Add section in docs about privacy (#3571).
• Chore: upgrade moment.js to recent version (#3562).
• Allow defining keyboard shortcuts for missing actions (#3561).
• Add a output_updated.outputarea event (#3560).
• [wip] [3335] convert js tests to selenium (#3554).
• Basic version reporting for extensions (#3541).
• Adding file size to views (#3539).
• Typos (#3528).
• Jquery attribute selector value must be surrounded by quotes (#3527).
• Add tips (#3525).
• Update docs with confd implementation details (#3520).
• Displays warning message if cookies not enabled (#3511).
• Convert dualmode_insertcell.js (#3508).
• Fixes to improve web accessibility (#3507).
• Prevent default on pageup/pagedown when completer is active (#3500).
• Prevent default event handling on new terminal (#3497).
• Solved waiting asterisk (#3494).
• Only check links when build is trigger by travis cron job (#3493).
• Configmanager should not write out default values found in the .d directory (#3485).
• Disable cache when downloading file (#3484).
• Add notebookapp.terminals_enabled config option (#3478).
• Convert native for loop to array foreach() (#3477).
• Convert undelete cell tests to selenium (#3475).
• Convert jstests to selenium: deletecell.js (#3465).
• Undo patches in teardown before attempting to delete files (#3459).
• Selenium utils + markdown rendering tests (#3458).
• Fix html tag (#3439).
• Trying to fix appveyor build errors (#3430).
• Update jquery to version 2.2 (#3428).
• Fix leak of iopub object in activity monitoring (#3424).
• Update selenium tests (#3412).
• Fix going back to root directory with history in notebook list (#3411).
• Javascript lint in notebooklist.js (#3409).
• Add settings['activity_sources'] (#3401).
• Add missing digestmod arg to hmac (#3399).
• Get tests running with tornado 5 (#3398).
• Adding description for 'trusted' widgets (#3386).
• Log oserrors failing to create less-critical files during startup (#3384).
• Don't clear login cookie on requests without cookie (#3380).
• Use powershell on windows (#3379).
• Add explanation on how to change the type of a cell to markdown. (#3377).
• Fix:when upload large file,we cant stop (#3373).
• Use latest codemirror (#3372).
• Api spec improvements, api handler improvements (#3368).
• Fix error in i18n/readme.md (#3367).
• Do not execute special notebooks with nbsphinx (#3360).
• Display hostname when running remotely (#3356).
• Set notebook to dirty state after change to kernel metadata (#3350).
• Add more information for where jupyter_notebook_config.py is located (#3346).
• Use csp header to treat served files as belonging to a separate origin (#3341).
• Fixed color contrast issue in tree.less (#3336).
• Don't install gettext into builtins (#3330).
• Fix a missing import of _ (#3326).
• Add any extra installed nbconvert exporters to the "download as" menu (#3323).
• Testing with selenium & sauce labs (#3321).
• Add missing import _ (#3316).
• #1097 add close and halt to shortcut menu (#3314).
• Write notebook.json file atomically (#3305).
• Don't trash files on different device to home dir on linux (#3304).
• Some javascript syntax fixes (#3294).
• Remove broken link to github user (#3293).
• Minor fixes (#3288).
• Add slides exportation/download to the menu (#3287).
• Fix clicking with modifiers, page title updates (#3282).
• Make buffer time between last modified on disk and last modified on last save configurable (#3273).
• Fix output prompt when execution_count missing. (#3236).
• Unpin ipykernel version on travis (#3223).
• Upgrade xterm.js to 3.1.0 (#3189).
• Add shutdown button option (#3004).
• Editor - prompt warning when overwriting a file that is modified on disk (#2783).

See the 5.5 milestone on GitHub for a complete list of issues and pull requests involved in this release.