diff --git a/README.md b/README.md
index 087880dd..28f9f06e 100644
--- a/README.md
+++ b/README.md
@@ -1156,6 +1156,12 @@ Example Usage:
 3.x Changelog
 -------------
 
+3.9.0 - 24 February 2021
+
+    * Bugfix: Try to make a log root of "log" more sensible (#540)
+    * Feature: Further adapt to OTP 24 (also remove pre OTP 21 code),
+               adopt Github Actions for tests
+
 3.8.2 - 4 February 2021
 
     * Bugfix: Make directory expansion return an absolute path (#535)
diff --git a/src/lager.app.src b/src/lager.app.src
index 69f1fd17..94c04f0e 100644
--- a/src/lager.app.src
+++ b/src/lager.app.src
@@ -3,7 +3,7 @@
 {application, lager,
  [
   {description, "Erlang logging framework"},
-  {vsn, "3.8.2"},
+  {vsn, "3.9.0"},
   {modules, []},
   {applications, [
                   kernel,