diff --git a/appveyor.yml b/appveyor.yml
index ef453af..b7c1fcb 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-version: 0.6.3.{build}
+version: 0.6.4.{build}
 image: Visual Studio 2022
 environment:
   CC: cl.exe
diff --git a/qtbuild_6.2.4/qt-jpegxl-image-plugin_alternative_appveyor.pro b/qtbuild_6.2.4/qt-jpegxl-image-plugin_alternative_appveyor.pro
index c1353af..f680586 100644
--- a/qtbuild_6.2.4/qt-jpegxl-image-plugin_alternative_appveyor.pro
+++ b/qtbuild_6.2.4/qt-jpegxl-image-plugin_alternative_appveyor.pro
@@ -17,7 +17,7 @@ TEMPLATE = lib
 CONFIG += release skip_target_version_ext c++14 warn_on plugin
 CONFIG -= separate_debug_info debug debug_and_release force_debug_info
 
-win32:VERSION = 0.6.3
+win32:VERSION = 0.6.4
 QMAKE_TARGET_COMPANY = "Daniel Novomesky"
 QMAKE_TARGET_PRODUCT = "qt-jpegxl-image-plugin"
 QMAKE_TARGET_DESCRIPTION = "Qt plug-in to allow Qt and KDE based applications to read/write JPEG XL images."
diff --git a/qtbuild_6.5.3/qt-jpegxl-image-plugin_alternative_appveyor.pro b/qtbuild_6.5.3/qt-jpegxl-image-plugin_alternative_appveyor.pro
index 00216ad..6df0bb1 100644
--- a/qtbuild_6.5.3/qt-jpegxl-image-plugin_alternative_appveyor.pro
+++ b/qtbuild_6.5.3/qt-jpegxl-image-plugin_alternative_appveyor.pro
@@ -17,7 +17,7 @@ TEMPLATE = lib
 CONFIG += release skip_target_version_ext c++14 warn_on plugin
 CONFIG -= separate_debug_info debug debug_and_release force_debug_info
 
-win32:VERSION = 0.6.3
+win32:VERSION = 0.6.4
 QMAKE_TARGET_COMPANY = "Daniel Novomesky"
 QMAKE_TARGET_PRODUCT = "qt-jpegxl-image-plugin"
 QMAKE_TARGET_DESCRIPTION = "Qt plug-in to allow Qt and KDE based applications to read/write JPEG XL images."
diff --git a/qtbuild_6.7.2/qt-jpegxl-image-plugin_alternative_appveyor.pro b/qtbuild_6.7.2/qt-jpegxl-image-plugin_alternative_appveyor.pro
index eede031..f6da02f 100644
--- a/qtbuild_6.7.2/qt-jpegxl-image-plugin_alternative_appveyor.pro
+++ b/qtbuild_6.7.2/qt-jpegxl-image-plugin_alternative_appveyor.pro
@@ -14,10 +14,10 @@ LIBS_PRIVATE += ../libjxl/build/lib/jxl.lib ../libjxl/build/lib/jxl_cms.lib ../l
 
 TEMPLATE = lib
 
-CONFIG += release skip_target_version_ext c++14 warn_on plugin
+CONFIG += release skip_target_version_ext c++17 warn_on plugin
 CONFIG -= separate_debug_info debug debug_and_release force_debug_info
 
-win32:VERSION = 0.6.3
+win32:VERSION = 0.6.4
 QMAKE_TARGET_COMPANY = "Daniel Novomesky"
 QMAKE_TARGET_PRODUCT = "qt-jpegxl-image-plugin"
 QMAKE_TARGET_DESCRIPTION = "Qt plug-in to allow Qt and KDE based applications to read/write JPEG XL images."