silverstripe-framework/docs/en/changelogs/3.1.2.md

3.1.2 (unreleased)

Upgrading

Treedropdownfield showsearch defaults to true

The showSearch option of TreedropdownField is now set to true by default. This is to provide a fallback ui for when children of a tree node fail to render (due to too many children). You may set search as false when initializing a TreedropdownField, or afterwards:

:::php
$treedropdownfield->setShowSearch(false);

If your data requires a specialized search function, you may specify it within:

:::php
$treedropdownfield->setSearchFunction();