Add contents to CHANGELOG.md for next version

CHANGELOG.md

@@ -2,6 +2,28 @@
 
 Certbot adheres to [Semantic Versioning](http://semver.org/).
 
+## 0.30.0 - master
+
+### Added
+
+*
+
+### Changed
+
+*
+
+### Fixed
+
+*
+
+Despite us having broken lockstep, we are continuing to release new versions of
+all Certbot components during releases for the time being, however, the only
+package with changes other than its version number was:
+
+*
+
+More details about these changes can be found on our GitHub repo.
+
 ## 0.29.1 - 2018-12-05
 
 ### Added