Release Notes for ActivityPub Application 1.4

Last modified by Manuel Leduc on 2020/12/01

This is the release notes for ActivityPub Application 1.4.

This release brings two new features to ActivityPub: mentioning users and liking entities. In addition, this release fixes some issues found during the development.

New and Noteworthy (since ActivityPub Application 1.3)

Full list of issues fixed and Dashboard for 1.4.

For Users

ActivityPub Mentions

It is now possible to send and receive mentions through the Fediverse using ActivityPub.

Sending a mention to an ActivityPub actors is done by using the existing mentions mechanism of XWiki.

Currently, mentioning an ActivityPub user cannot be done with the WYSIWYG editor. The type parameter of the mention macro must be completed manually using the xwiki editor.

To be notified of mentions from the Fediverse, the "Receive mentions notifications." notification option of the ActivityPub category must be activated in the notifications settings.

Like Elements

It is now possible to perform Likes on elements coming from the fediverse: you can like something by clicking on a heart icon directly on the ActivityPub notification.

All the elements liked can be then retrieved in the new dedicated view of the ActivityPub dashboard.


  • Improved notifications display: The presentation of the notification has been improved to be more readable when the sender has a long identifier, or the received content is large.

For Admins

For Developers

No changes!


The following translations have been updated: 

Known issues

Backward Compatibility and Migration Notes

General Notes

  • When upgrading make sure you compare and merge the following XWiki configuration files since some parameters may have been modified, removed or added:
    • xwiki.cfg
    • web.xml
    • hibernate.cfg.xml
  • Add in xwiki.cfg so that XWiki will attempt to automatically migrate your current database to any new schema. Make sure you backup your Database before doing anything.


The following people have contributed code and translations to this release (sorted alphabetically):

  • Manuel Leduc
  • Simon Urli

The development of ActivityPub 1.4 has been partly funded by NLnet fundation as part of the NGI Search & Discovery call.

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