Breaking: #96517 - TMENU.collapse TypoScript removed 

See forge#96517

Description 

The collapse TypoScript property of TMENU is removed without substitution.

When set, active TMENU items previously linked to their parent page, which was primarily a use case for GMENU_LAYERS, which was removed in TYPO3 v6.0.

Impact 

Setting this TypoScript option has no effect anymore.

Affected Installations 

TYPO3 installations with TMENU definitions having this option set which is highly unlikely.

Migration 

Use a custom user function or the PSR-14 FilterMenuItemsEvent event to modify the menu items.