diff --git a/ChangeLog b/ChangeLog
index 3d7e73be..36c15891 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -32,6 +32,7 @@ ver. 0.10.6-dev (20??/??/??) - development edition
   IPv6-capable now.
 
 ### Fixes
+* python 3.9 compatibility (and Travis CI support)
 * restoring a large number (500+ depending on files ulimit) of current bans when using PyPy fixed
 * manual ban is written to database, so can be restored by restart (gh-2647)
 * `filter.d/common.conf`: avoid substitute of default values in related `lt_*` section, `__prefix_line`