diff --git a/doc/news.rst b/doc/news.rst
index a6f262e..bcf06e7 100644
--- a/doc/news.rst
+++ b/doc/news.rst
@@ -4,8 +4,15 @@ rarfile history
 
 .. py:currentmodule:: rarfile
 
-Unreleased
-----------
+Version 4.0 (2020-07-31)
+------------------------
+
+Main goals are:
+
+* Increased ``zipfile``-compatibility, thus also achieving smaller
+  difference between RAR3 and RAR5 archives.
+* Removing dependency on ``unrar`` for extract, thus making maintenance
+  of alternative backends more manageable.
 
 Breaking changes:
 
diff --git a/rarfile.py b/rarfile.py
index d844b3f..58a59ab 100644
--- a/rarfile.py
+++ b/rarfile.py
@@ -90,7 +90,7 @@ def __init__(self, key, iv):
             self.decrypt = ciph.decryptor().update
 
 
-__version__ = "4.0a1"
+__version__ = "4.0"
 
 # export only interesting items
 __all__ = ["is_rarfile", "is_rarfile_sfx", "RarInfo", "RarFile", "RarExtFile"]