diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0685f5e3..9e3817e7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,17 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [6.7.49] - 2026-09-10
+
+### Changed
+
+- Release single instance lock on aboutToQuit
+
+### Fixed
+
+- Install DLL to bin directory on Windows
+- Use QImage::flipped() for Qt6 compatibility
+
 ## [6.7.48] - 2026-08-18
 
 ### Changed
diff --git a/VERSION b/VERSION
index f421cb94..c9952ecc 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-6.7.48
+6.7.49
diff --git a/archlinux/PKGBUILD b/archlinux/PKGBUILD
index 68a58655..1189cabe 100644
--- a/archlinux/PKGBUILD
+++ b/archlinux/PKGBUILD
@@ -1,6 +1,6 @@
 # Maintainer: justforlxz <justforlxz@gmail.com>
 pkgname=dtkgui-git
-pkgver=6.7.48
+pkgver=6.7.49
 pkgrel=1
 sourcename=dtkgui
 sourcetars=("$sourcename"_"$pkgver".tar.xz)
diff --git a/debian/changelog b/debian/changelog
index 1b4a2677..81fbbaef 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+dtkgui (6.7.49) unstable; urgency=medium
+
+  * Release 6.7.49
+
+ -- yeshanshan <yeshanshan@uniontech.com>  Thu, 10 Sep 2026 20:36:23 +0800
+
 dtkgui (6.7.48) unstable; urgency=medium
 
   * Release 6.7.48
diff --git a/rpm/dtkgui.spec b/rpm/dtkgui.spec
index 6a58d4df..8d9912d1 100644
--- a/rpm/dtkgui.spec
+++ b/rpm/dtkgui.spec
@@ -1,5 +1,5 @@
 Name:           dtkgui
-Version:        6.7.48
+Version:        6.7.49
 Release:        1%{?dist}
 Summary:        Deepin dtkgui
 License:        LGPLv3+