Following hooks, related to link generation with TYPO3's Frontend
Link building technique typoLink, have been removed in favor of
the new PSR-14 events \TYPO3\CMS\Frontend\Event\AfterLinkIsGeneratedEvent:
Especially the latter functionality was not available
for all link types (only mail, file + external links).
At the same time, some external links and mail links were not
using typoLink, because internally the method $cObj->http_makelinks()
had been used.
This architectural design flaw had been solved by introducing
a unified Link Generation API ("LinkFactory").
Using these hooks in extensions has no effect anymore in TYPO3 v12+.
TYPO3 installations with custom extensions using these hooks for
modifying links. The extension scanner in the Upgrade module / Install
tool will show affected occurrences.
In order to make TYPO3 extensions compatible with TYPO3 v11 and
TYPO3 v12 simultaneously, the new PSR-14 event AfterLinkIsGeneratedEvent
should be added in addition to the existing hooks.
The new PSR-14 event
contains all information about the link result and the configuration itself.