diff --git a/texstudio-3.1.2.tar.gz b/texstudio-3.1.2.tar.gz
deleted file mode 100644
index 40a718a..0000000
--- a/texstudio-3.1.2.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:7251f8e6f2b17395c428e9ff13bfc2c58e5f07ec09aae1036ab912dcf89f6fad
-size 83987451
diff --git a/texstudio-4.0.0.tar.gz b/texstudio-4.0.0.tar.gz
new file mode 100644
index 0000000..a2c82ec
--- /dev/null
+++ b/texstudio-4.0.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ab541160525be8442aedcdbe4acb33e07518d6362ab819a16bbcd558ff39731c
+size 88426776
diff --git a/texstudio.changes b/texstudio.changes
index 312c417..d16218b 100644
--- a/texstudio.changes
+++ b/texstudio.changes
@@ -1,3 +1,17 @@
+-------------------------------------------------------------------
+Tue Sep 28 07:36:11 UTC 2021 - Markus Ebner <info@ebner-markus.de>
+
+- Update to version 4.0.0
+  * adapt to Qt6/poppler-qt6
+  * OSX/win build provided with Qt6
+  * remodel structure handling in order to avoid (rare) crashes
+  * more and updated completion word lists thanks to mbertucci47
+  * handle text (e.g. \text{text}) in mathenv as text with spell checking
+  * performance improvement for large files with large number of labels and/or large number of includes
+  * fix that search options are persistant
+  * automatic structure scrolling can be turned off (#1742)
+  * some bug fixes
+
 -------------------------------------------------------------------
 Mon May 17 01:53:33 UTC 2021 - Fusion Future <qydwhotmail@gmail.com>
 
diff --git a/texstudio.spec b/texstudio.spec
index 18187ab..3bdc44d 100644
--- a/texstudio.spec
+++ b/texstudio.spec
@@ -17,7 +17,7 @@
 
 
 Name:           texstudio
-Version:        3.1.2
+Version:        4.0.0
 Release:        0
 Summary:        LaTeX Editor
 License:        Apache-2.0 AND GPL-2.0-only AND GPL-3.0-only AND MPL-1.1
@@ -31,6 +31,7 @@ BuildRequires:  pkgconfig(Qt5Concurrent)
 BuildRequires:  pkgconfig(Qt5Gui)
 BuildRequires:  pkgconfig(Qt5Network)
 BuildRequires:  pkgconfig(Qt5PrintSupport)
+BuildRequires:  pkgconfig(Qt5Qml)
 BuildRequires:  pkgconfig(Qt5Script)
 BuildRequires:  pkgconfig(Qt5Svg)
 BuildRequires:  pkgconfig(Qt5UiTools)