CHANGES.

CHANGES.md

 # CHANGES
 
+## 2022/04/07
+
+* Fix a serious bug in `Enum.sample`, which used OCaml's random number
+  generator in such a way that it would always produce the same number. The
+  fix modifies the signature of several internal modules, such as
+  `Feat.RandomBigInt`. The public API of the libraries `feat` and `feat-num`
+  is unaffected. (Reported by Guyslain Naves.)
+
 ## 2022/01/01
 
 * Improved documentation.