Changes Report

Empty Line Placeholder

A placeholder text is now displayed on currently focused empty lines. By default it indicates the type of content block that holds the caret (e.g. paragraph, heading, list item, etc.), but it could also show tips on how to use the editor in that particular context. This is for instance used to advertise the Quick Actions shortcut (slash). Checkout the CKEditor Integration documentation for more information.

Improved contrast of the autosave text when disabled.

Fixed tabulator order for the quick search feature. Now only visible elements will get focus via keyboard.

PDF Export Size Limit

The default PDF export size limit has been increased from 100KB to 5MB and is now applied only when exporting multiple wiki pages. Checkout the PDF Export Application documentation for more information.

More robust security cache

The security cache has been made robust against the disposal of structurally important entries by storing them also outside the cache as long as they're still needed by entries in the cache to avoid cascading disposal of large parts of the cache. If you've had problems with users seeing access denied sometimes, this might be the improvement you've been looking forward to. Also, if you've configured a very high size for the security cache to avoid these problems, it should be possible to reduce these limits now. The documentation provides some hints how to choose a reasonable security cache size. However, as with every change to code that is critical to performance and security, there is a risk for regressions even though we have extensive tests. In particular if you're maintaining a larger instance of XWiki, it is advised to monitor memory usage and performance after the upgrade to see if there are any irregularities. Also, please check that access restrictions are still working, in particular, if they involve nested groups. As always, please open a bug report or create a forum post if you're noticing anything unusual.

Improved Security Vulnerabilities scanner

On XWiki 15.5 the Security Vulnerabilities Application was limited to installed extensions. The scan now includes core extensions as well as dependencies provided by the environment (e.g., the servlet engine).

Environment vulnerabilities are listed in a separate tab.

Security Vulnerabilities name display

The display of the extension names on the extension security vulnerabilities is now improved to take into account the limited horizontal space of the administration.

Set email grouping strategy per scheduler

The email grouping strategy can be defined at different levels (per wiki, and per user) and is specific for a given scheduler, using a new dedicated XObject XWiki.Notifications.Code.NotificationEmailGroupingStrategyPreferenceClass.

So an admin can add one or severals xobjects in XWiki.XWikiPreferences for defining the different strategies for each scheduler, at wiki level: the xobject needs to contain the name of the strategy to use, and the name of scheduler (hourly, daily, weekly or live).
This value can be overridden by a user if they perform adding the same type of xobject in their own user profile.

Improved contrast on the "Excluded page" None element, in the Look & Feel -> Navigation Panels administration subsection.

Improved contrast for the "Decline" button in invitations.

The Application panel has been improved for low width displays.

Added keyboard support for the rich select used to pick a page template at page creation.

Improved contrast on the App Within Minute application creation wizard for the active (green) and already finished steps (light grey).

Forced default image style

The default image style can now be forced, meaning that it will be used by default and a style must be selected.

Increasing contrast

The info button of the Flamingo Theme is now increased to conform to the minimum contrast defined in the Web Content Accessibility Guidelines. 

Groups can be filtered by their title in groups livetables

It is now possible to filter groups by their title in the groups livetables or the access rights livetables. This is particularly helpful in case a group has a “pretty name” that is more user-friendly than the name of the group document.

Table of content entries customization

It is possible to decorate the Table of Content entries by providing a component with the TocEntryExtension role.

Added accessibility test overview

Now, builds with the property xwiki.test.ui.wcag property activated will create overview reports of the accessibility results. These reports will generate whatever the results are, and will contain statistics about the tests in the test suite.

ClassLoader name

The ClassLoaders associated to namespace are now implementing ClassLoader#getName() so you don't need to cast it to NamespaceURLClassLoader to access the namespace anymore.

Velocity AST caching

VelocityEngine API now expose helpers to much easier to compile and cache the Velocity AST.