--- a/CHANGELOG	Thu Sep 19 11:46:16 2019 +0700
+++ b/CHANGELOG	Fri Jul 19 16:26:48 2019 +0200
@@ -8,6 +8,7 @@
   * fold: check allowdivergence before folding obsolete changesets (issue5817)
   * obslog: correct spacing of patch output with word-diff=yes (issue6175)
   * stack: make sure to preserve dependencies, fixes certain complex cases
+  * prune: improve documentation for `--pair`
 
 
 9.1.0 -- 2019-07-29