Full list of new features and changes available on New & Noteworthy page
We introduced real IReconciler and IReconcilingStrategy for our PHP Edtor. Unfortunately due limitation of SSE we inject reconciler via Java Reflections.
There are no security issues.
Nothing is end of lifed in this release.
We lost commercial support in last releases, but still have 8 active commiters with vary amounts of activity as all of them are only part time working on PDT directly.