diff --git a/.gitignore b/.gitignore
index 4c7b863..e69de29 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +0,0 @@
-/okular-17.08.1.tar.xz
-/okular-17.08.2.tar.xz
-/okular-17.08.3.tar.xz
-/okular-17.12.0.tar.xz
-/okular-17.12.1.tar.xz
-/okular-17.12.2.tar.xz
-/okular-17.12.3.tar.xz
diff --git a/okular-kcrash.patch b/okular-kcrash.patch
new file mode 100644
index 0000000..9270345
--- /dev/null
+++ b/okular-kcrash.patch
@@ -0,0 +1,52 @@
+commit 3e25263d7709524e227207092533397ef65f2c82
+Author: Albert Astals Cid <aacid@kde.org>
+Date:   Sun Apr 8 11:50:18 2018 +0200
+
+    Use KCrash
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 2b38cac37..fd2d55ec2 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -53,6 +53,7 @@ find_package(KF5 ${KF5_REQUIRED_VERSION} REQUIRED COMPONENTS
+     Config
+     ConfigWidgets
+     CoreAddons
++    Crash
+     DocTools
+     IconThemes
+     JS
+diff --git a/shell/CMakeLists.txt b/shell/CMakeLists.txt
+index ec2f1bace..e85076dda 100644
+--- a/shell/CMakeLists.txt
++++ b/shell/CMakeLists.txt
+@@ -27,7 +27,7 @@ ecm_add_app_icon(okular_SRCS ICONS ${ICONS_SRCS})
+ 
+ add_executable(okular ${okular_SRCS})
+ 
+-target_link_libraries(okular KF5::Parts KF5::WindowSystem)
++target_link_libraries(okular KF5::Parts KF5::WindowSystem KF5::Crash)
+ 
+ if(NOT WIN32)
+ 	target_link_libraries(okular KF5::Activities)
+diff --git a/shell/main.cpp b/shell/main.cpp
+index 3f8dc4367..de8a5c24e 100644
+--- a/shell/main.cpp
++++ b/shell/main.cpp
+@@ -20,6 +20,7 @@
+ #include <kwindowsystem.h>
+ #include <QApplication>
+ #include <KAboutData>
++#include <KCrash>
+ #include <KMessageBox>
+ #include <QCommandLineParser>
+ #include <QCommandLineOption>
+@@ -39,6 +40,8 @@ int main(int argc, char** argv)
+     // set icon for shells which do not use desktop file metadata
+     QApplication::setWindowIcon(QIcon::fromTheme(QStringLiteral("okular")));
+ 
++    KCrash::initialize();
++
+     QCommandLineParser parser;
+     // The KDE4 version accepted flags such as -unique with a single dash -> preserve compatibility
+     parser.setSingleDashWordOptionMode(QCommandLineParser::ParseAsLongOptions);
diff --git a/okular.spec b/okular.spec
index 152c704..df0e1b8 100644
--- a/okular.spec
+++ b/okular.spec
@@ -14,8 +14,8 @@
 
 Name:    okular 
 Summary: A document viewer
-Version: 17.12.3
-Release: 2%{?dist}
+Version: 18.03.90
+Release: 1%{?dist}
 
 License: GPLv2
 URL:     https://www.kde.org/applications/graphics/okular/
@@ -29,6 +29,10 @@ URL:     https://www.kde.org/applications/graphics/okular/
 %endif
 Source0: http://download.kde.org/%{stable}/applications/%{version}/src/%{name}-%{version}.tar.xz
 
+## upstream patches
+# https://cgit.kde.org/okular.git/commit/?id=3e25263d7709524e227207092533397ef65f2c82
+Patch1: okular-kcrash.patch
+
 BuildRequires: desktop-file-utils
 BuildRequires: libappstream-glib
 
@@ -41,6 +45,7 @@ BuildRequires: cmake(KF5Completion)
 BuildRequires: cmake(KF5Config)
 BuildRequires: cmake(KF5ConfigWidgets)
 BuildRequires: cmake(KF5CoreAddons)
+BuildRequires: cmake(KF5Crash)
 BuildRequires: cmake(KF5DBusAddons)
 BuildRequires: cmake(KF5DocTools)
 BuildRequires: cmake(KF5IconThemes)
@@ -71,7 +76,7 @@ BuildRequires: cmake(Qca-qt5)
 
 ## generater/plugin deps
 BuildRequires: cmake(KF5KExiv2)
-BuildRequires: kdegraphics-mobipocket-devel >= %{majmin_ver}
+BuildRequires: kdegraphics-mobipocket-devel
 %if 0%{?chm}
 BuildRequires: chmlib-devel
 BuildRequires: pkgconfig(libzip)
@@ -83,6 +88,7 @@ BuildRequires: libjpeg-devel
 BuildRequires: libtiff-devel
 BuildRequires: pkgconfig(ddjvuapi) 
 BuildRequires: pkgconfig(freetype2)
+BuildRequires: pkgconfig(libmarkdown)
 BuildRequires: pkgconfig(libspectre)
 BuildRequires: pkgconfig(poppler-qt5)
 BuildRequires: pkgconfig(qca2)
@@ -152,7 +158,7 @@ pushd %{_target_platform}
 %{cmake_kf5} ..
 popd
 
-make %{?_smp_mflags} -C %{_target_platform}
+%make_build -C %{_target_platform}
 
 
 %install
@@ -204,11 +210,10 @@ desktop-file-validate %{buildroot}%{_kf5_datadir}/applications/org.kde.mobile.ok
 %{_libdir}/libOkular5Core.so
 %{_libdir}/cmake/Okular5/
 
-%post libs -p /sbin/ldconfig
-%postun libs -p /sbin/ldconfig
+%ldconfig_scriptlets libs
 
 %files libs
-%{_libdir}/libOkular5Core.so.8*
+%{_libdir}/libOkular5Core.so.9*
 
 %files part -f okular-part.lang
 %{_qt5_plugindir}/kio_msits.so
@@ -225,6 +230,10 @@ desktop-file-validate %{buildroot}%{_kf5_datadir}/applications/org.kde.mobile.ok
 
 
 %changelog
+* Sun Apr 08 2018 Rex Dieter <rdieter@fedoraproject.org> - 18.03.90-1
+- 18.03.90, support kcrash
+- enable discount/libmarkdown support
+
 * Fri Mar 23 2018 Marek Kasik <mkasik@redhat.com> - 17.12.3-2
 - Rebuild for poppler-0.63.0
 
diff --git a/sources b/sources
index 3ee711f..e69de29 100644
--- a/sources
+++ b/sources
@@ -1 +0,0 @@
-SHA512 (okular-17.12.3.tar.xz) = 803e69a918a385798905eeda15afa817ff145406947abc793c62c26879ed9b98ca601adedeb5133972be50e679cc31cc2ad8ccc97c084c64a3cad791a778d361