Construct 3 r284.2

Notes

An issue with a possible crash using WebGL 1 in worker mode was discovered late in this release cycle. While most devices now support WebGL 2, we've opted to patch this issue before the next stable release to ensure content still works even on older devices. Out of an abundance of caution, we're releasing the update to verify it works correctly before the scheduled stable release next week.

In case you missed it, see also the r284 release notes.