Prepare for release

CHANGELOG.md

@@ -6,13 +6,17 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## Releases
 
+### v3.9.x - [Unreleased]
+
 ---
 
-### v3.9.6 - [Unreleased]
+### v3.9.5.4 - 2019-07-13
 
 #### Added
 
 - New Nginx package on Ubuntu with TLS v1.3 support (OpenSSL 1.1.1c)
+- Netdata upgrade with `wo stack upgrade --netdata`
+- Netdata stack remove/purge
 
 #### Changed
 
@@ -23,8 +27,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 - phpRedisAdmin installation
 - Duplicated locations /robots.txt after upgrade to v3.9.5.3
-- Site update with flag "--le=off"
+- Let's Encrypt stack "wo site update --letsencrypt/--letsencrypt=off"
 - pt-query-advisor dead link
+- Netdata persistant configuration
 
 ### v3.9.5.3 - 2019-06-18