5.0.1 was just released to fix several security bugs. The Security team tried very hard to mitigate all of the vulnerabilities without any back-compat breaks, but unfortunately there were a few cases where that was not possible. Security patches are backported to the 3.7 branch, so these BC breaks also apply to versions 4.9.9, 4.8.8, … Continue reading Backwards Compatibility Breaks in 5.0.1