diff --git a/relnotes/next b/relnotes/next
--- a/relnotes/next
+++ b/relnotes/next
@@ -54,3 +54,17 @@
 
  * `util.dirs()` and `util.finddirs()` now include an entry for the
    root directory (empty string).
+
+ * New API to manage unfinished operations: Earlier there were distinct APIs
+   which dealt with unfinished states and separate lists maintaining them.
+   eg:`cmdutil.afterresolvestates`, `cmdutil.unfinishedstates` and
+   `cmdutil.STATES`. Now these have been unified to a single
+   API which handles the various states and their utilities.This API
+   has been added to `state.py` and is form of class called `_statecheck`.
+   To register a new state for an operation you need to add a `_statecheck`
+   object with necessary information to `_unfinishedstates` list.
+   The method of registration of a `_statecheck` object into `_unfinishedstates`
+   is not direct but through `addunfinished()`. The data needed for various
+   operations to be registered under `_unfinishedstates` list is stated in
+   `_statecheck` class.
+