Since this is a prerelease, you need to use pip's --pre switch to install it, ie pip install --pre indico (same for indico-plugins)

🏆 Major Features

Add support for personal tokens. These tokens act like OAuth tokens, but are associated with a specific user and generated manually without the need of doing the OAuth flow. They can be used like API keys but with better granularity using the same scopes OAuth applications have, and a single user can have multiple tokens using various scopes. By default any user can create such tokens, but admins can restrict their creation. (#1934, #4976)

🎉 Improvements

Add abstract content to the abstract list customization options (#4968)
Add CLI option to create a series (#4969)
Users cannot submit multiple anonymous surveys anymore by logging out and in again (#4693, #4970)
Improve reviewing state display for paper reviewers (#4979, #4984)
Make it clearer if the contributions/timetable of a conference are still in draft mode (#4977, #4986)
Add "send to speakers" option in event reminders (#4958, #4966, thanks @Naveenaidu)
Allow displaying all events descending from a category (#4982, #4983, thanks @OmeGak and @openprojects).
Add an option to allow non-judge conveners to update an abstract track (#4989)

Fix errors when importing events containing abstracts or event roles from a YAML dump (#4995)
Fix sorting abstract notification rules (#4998)
No longer silently fall back to the first event contact email address when sending registration emails where no explicit sender address has been configured (#4992, #4996, thanks @vasantvohra)
Do not check for event access when using a registration link with a registration token (#4991, #4997, thanks @vasantvohra)