diff --git a/docs/devel/changelog.md b/docs/devel/changelog.md
index 5714891e9..6b88fa738 100644
--- a/docs/devel/changelog.md
+++ b/docs/devel/changelog.md
@@ -4,6 +4,18 @@
 # Changelog
 
 
+## 4.0.0 (2023-02-28)
+
+- Updated PDFium from `5579` to `5619` (autorelease).
+- Full support model rewrite. Many existing features changed and new helpers added. Numerous bugs fixed on the way.
+  Read the updated documentation to migrate your code.
+- The raw API is now isolated in a separate namespace (`pypdfium2.raw`).
+  Moreover, the raw API bindings do not implicitly encode strings anymore (pypdfium2 is now built with a patched version of ctypesgen by default).
+- Helper objects now automatically resolve to the underlying raw object if used as ctypes function parameter.
+- Improved command-line interface.
+- Improved documentation.
+
+
 ## 4.0.0b2 (2023-02-23)
 
 - No PDFium update (autorelease).
diff --git a/docs/devel/changelog_staging.md b/docs/devel/changelog_staging.md
index f4144aa3d..d15b83b2a 100644
--- a/docs/devel/changelog_staging.md
+++ b/docs/devel/changelog_staging.md
@@ -4,11 +4,3 @@
 <!-- List character: dash (-) -->
 
 # Changelog for next release
-
-- Full support model rewrite. Many existing features changed and new helpers added. Numerous bugs fixed on the way.
-  Read the updated documentation to migrate your code.
-- The raw API is now isolated in a separate namespace (`pypdfium2.raw`).
-  Moreover, the raw API bindings do not implicitly encode strings anymore (pypdfium2 is now built with a patched version of ctypesgen by default).
-- Helper objects now automatically resolve to the underlying raw object if used as ctypes function parameter.
-- Improved command-line interface.
-- Improved documentation.
diff --git a/src/pypdfium2/version.py b/src/pypdfium2/version.py
index 3b65fdf00..2e2452bed 100644
--- a/src/pypdfium2/version.py
+++ b/src/pypdfium2/version.py
@@ -6,7 +6,7 @@
 V_MAJOR = 4
 V_MINOR = 0
 V_PATCH = 0
-V_BETA = 2
+V_BETA = None
 
 #: pypdfium2 version string
 V_PYPDFIUM2 = f"{V_MAJOR}.{V_MINOR}.{V_PATCH}"
@@ -14,7 +14,7 @@
     V_PYPDFIUM2 += f"b{V_BETA}"
 
 #: PDFium library version string (git tag or commit hash)
-V_LIBPDFIUM = "5579"
+V_LIBPDFIUM = "5619"
 
 #: String describing the included PDFium binary's origin (pdfium-binaries, sourcebuild)
 V_BUILDNAME = "pdfium-binaries"