(internal MR 3749) Improvement: Fix schematron runner on Mac. (internal MR 3759) New vendor extension: XR_META_detached_controllers (internal MR 2467) New vendor extension: XR_BD_spatial_sensing ...

For the mainline flavor, we test the libraries using OpenJDK 8, 11, and 17 on Linux, with some additional testing on newer JDKs and on Windows. Some features, especially in com.google.common.io, may ...