Wayfinder
Tested version: 2.3.3-pl
On MODX 3 version: git install 3.0.0-alpha3
Basic usage
Tried some variations of different parameters as described in the docs, all work as expected.
Error log
When using the snippet on frontend some errors get logged:
modChunk is deprecated since version 3.0. Replace references to class modChunk with MODX\Revolution\modChunk to take advantage of PSR-4 autoloading.
modResource is deprecated since version 3.0. Replace references to class modResource with MODX\Revolution\modResource to take advantage of PSR-4 autoloading.
Both are triggered from the main wayfinder class, and more specifically from the newObject / getObject method calls.
Information from developer
Last version is released in 2011, so no mention of MODX3 compatibility.
Verdict
Largely compatible, but needs a bit of work to fix the deprecations.