diff --git a/kde-misc/kdiff3/kdiff3-1.8.5.recipe b/kde-misc/kdiff3/kdiff3-1.9.3.recipe
similarity index 93%
rename from kde-misc/kdiff3/kdiff3-1.8.5.recipe
rename to kde-misc/kdiff3/kdiff3-1.9.3.recipe
index f6ddfeeb5..f12c321cf 100644
--- a/kde-misc/kdiff3/kdiff3-1.8.5.recipe
+++ b/kde-misc/kdiff3/kdiff3-1.9.3.recipe
@@ -13,14 +13,13 @@ DESCRIPTION="KDiff3 is a diff and merge program that:
 * Automatic merging of version control history ($Log$),
 * and has an intuitive graphical user interface."
 HOMEPAGE="https://github.com/KDE/kdiff3/"
-COPYRIGHT="
-	2016-2020 Michael Reeves
+COPYRIGHT="2016-2020 Michael Reeves
 	2002-2014 Joachim Eibl
 	"
 LICENSE="GNU GPL v2"
 REVISION="1"
 SOURCE_URI="https://download.kde.org/stable/kdiff3/kdiff3-$portVersion.tar.xz"
-CHECKSUM_SHA256="bc92f7d04eb123f9c56dbe3047af67bf715240fa99487ac1d1ccf2a45e0854c1"
+CHECKSUM_SHA256="317bf5c7e27cba81bce7e1a7a579105443133b633cbb71bc1f169e86a235af9c"
 SOURCE_DIR="kdiff3-$portVersion"
 ADDITIONAL_FILES="kdiff3.rdef.in"
 
@@ -41,6 +40,7 @@ PROVIDES="
 	"
 REQUIRES="
 	haiku$secondaryArchSuffix
+	lib:libboost_system$secondaryArchSuffix 
 	lib:libKF5Auth$secondaryArchSuffix
 	lib:libKF5Bookmarks$secondaryArchSuffix
 	lib:libKF5Codecs$secondaryArchSuffix
@@ -71,7 +71,8 @@ REQUIRES="
 
 BUILD_REQUIRES="
 	haiku${secondaryArchSuffix}_devel
-	extra_cmake_modules$secondaryArchSuffix >= 5.77
+	extra_cmake_modules$secondaryArchSuffix >= 5.86
+	devel:libboost_system$secondaryArchSuffix >= 1.69.0
 	devel:libKF5Auth$secondaryArchSuffix
 	devel:libKF5Bookmarks$secondaryArchSuffix
 	devel:libKF5Codecs$secondaryArchSuffix
@@ -110,10 +111,12 @@ BUILD()
 {
 	sed -e '/add_subdirectory(doc)/ s/^#*/#/' -i CMakeLists.txt
 	sed -e '/kdoctools_install(po)/ s/^#*/#/' -i CMakeLists.txt
-	sed -e '/DocTools/ s/^#*/#/' -i CMakeLists.txt
+
 	mkdir -p build
 	cd build
+
 	cmake .. \
+		-DCMAKE_BUILD_TYPE=Release \
 		-DCMAKE_INSTALL_PREFIX=$prefix \
 		-DCMAKE_INSTALL_BINDIR=$commandBinDir \
 		-DSHARE_INSTALL_PREFIX=$dataDir \