For the free version changelog please see our wp.org repo page changelog.
PRO changelog is below.

v5.15 - 2019-11-26
  • Added Delete MU Plugins & Drop-ins Tool
  • Added delete snapshots button
  • Added White-label option for Agency Licenses
  • Tweaks and bug fixes
v5.13 - 2019-11-23
  • Tweaks and Bug Fixes
v5.12 - 2019-11-19
  • CSS Bug Fix
v5.11 - 2019-11-18
  • First official pro release
v5.01 - 2019-11-17
  • Test beta update
v5.00 - 2019-11-17
  • First public beta release