Dancer2 2.2.0 released; security updates PLEASE READ

We have just released Dancer2 2.2.0. It is a maintenance release containing a number of bug fixes, several important security updates, and one breaking change (see below). First and foremost, please read the following security announcements; if you are running affected versions of Dancer2, you should plan to update immediately: GHSA-6xw8-v24c-m783 (Severity: High; Versions affected: GHSA-v527-r4px-7vx7 (Severity: Moderate; Versions affected: >= 2.0.0, A recap of all changes follows.