--- a/CHANGELOG	Sun Jan 06 00:27:54 2019 +0800
+++ b/CHANGELOG	Tue Jan 22 10:41:53 2019 -0500
@@ -1,6 +1,29 @@
 Changelog
 =========
 
+8.4.0 - in progress
+-------------------
+
+  * split: improve and update the user prompt (BC)
+  * split: make it possible to drop change during a split
+  * split: no longer accept revision with --rev (BC)
+  * split: accept file patterns
+  * split: support for non interactive splits
+  * evolve: avoid potential crash when stabilizing orphan merges
+  * evolve: pick right destination in split+prune cases issue5686 (4.9 only)
+  * evolve: prioritize --rev/--any/--all option over obsolete working directory
+  * fold: concatenate commit message in revision order
+  * push: have `--publish` overrule the `auto-publish` config
+  * next: evolve aspiring children by default (use --no-evolve to skip)
+  * next: pick lower part of a split as destination
+  * compat: drop compatibility with Mercurial 4.3
+  * compat: add compatibility with Mercurial 4.9
+  * topics: improve the message around topic changing
+  * stack: introduce a --children flag (see help for details)
+  * topic: make --age compatible with the usual other display for `hg topic`
+  * stack: support for '#stack[idx]' absolute indexing in revset (4.9+ only)
+  * topic: support for '#topic[idx]' relative indexing in revset (4.9+ only)
+
 8.3.3 -- 2017-12-24
 -------------------