## [x.x.x] - xxxx-xx-xx
## Changed
-- ...
+- Skip challenges for already validated domains
+- Removed need for some special commands (BusyBox compatibility)
+
+## Added
+- Added private-key rollover functionality
+- Added `--lock-suffix` option for allowing parallel execution
+- Added `invalid_challenge` hook
+- Added `request_failure` hook
## [0.3.1] - 2016-09-13
## Changed