CHANGELOG.md in verdict-0.13.0 vs CHANGELOG.md in verdict-0.14.0

@@ -1,4 +1,7 @@
+## v0.14.0
+* Add optional experiment definition method `schedule_stop_new_assignment_timestamp` to support limiting experiment's assignment lifetime with another pre-determined time interval. It allows users to have an assignment cooldown period for stable analysis of the experiment results. Experiment's lifetime now becomes: start experiment -> stop new assignments -> end experiment. 
+
 ## v0.13.0
 
 * Add optional experiment definition methods `schedule_start_timestamp` and `schedule_end_timestamp` to support limiting experiment's lifetime in a pre-determined time interval.
 * Support eager loading from within a Rails app using Zeitwerk.
 * Add `CookieStorage` storage backend. This backend is a distributed store for Verdict and does not support experiment timestamps. It is designed to be used with Rails applications and requires that `.cookies` be set to the `CookieJar` instance before use.