diff --git a/earlyoom-1.4.tar.gz b/earlyoom-1.4.tar.gz
deleted file mode 100644
index 2bc618f..0000000
--- a/earlyoom-1.4.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:859d044fc5149fb446e4f3cf3278a524c5f74084026152356de6b7c1270b47ce
-size 48895
diff --git a/earlyoom-1.6.tar.gz b/earlyoom-1.6.tar.gz
new file mode 100644
index 0000000..a564cdf
--- /dev/null
+++ b/earlyoom-1.6.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b81804fc4470f996014d52252a87a1cf3b43d3d8754140035b10dcee349302b8
+size 47705
diff --git a/earlyoom.changes b/earlyoom.changes
index c7401b4..b9fa2f9 100644
--- a/earlyoom.changes
+++ b/earlyoom.changes
@@ -1,3 +1,28 @@
+-------------------------------------------------------------------
+Wed Jun 10 08:18:22 UTC 2020 - Dan Čermák <dcermak@suse.com>
+
+- New upstream release 1.6
+
+  * 1.6, 2020-04-11
+    * Replace old `notify-send` GUI notification logic with `dbus-send` /
+      [systembus-notify](https://github.com/rfjakob/systembus-notify)
+      ([#183](https://github.com/rfjakob/earlyoom/issues/183))
+      * `-n`/`-N` now enables the new logic
+      * You need to have
+        [systembus-notify](https://github.com/rfjakob/systembus-notify) running
+        in your GUI session for notifications for work
+    * Handle `/proc` mounted with
+      [hidepid](https://github.com/rfjakob/earlyoom/wiki/proc-hidepid)
+      gracefully ([issue #184](https://github.com/rfjakob/earlyoom/issues/184))
+
+  * v1.5, 2020-03-22
+    * `-p`: set oom_score_adj to `-100` instead of `-1000`
+      ([#170](https://github.com/rfjakob/earlyoom/issues/170))
+    * Allow using **both** `-M` and `-m`, and `-S` and `-s`. The lower value
+      (converted to percentages) will be used.
+    * Set memory report interval in `earlyoom.default` to 1 hour instead of 1
+      minute ([#177](https://github.com/rfjakob/earlyoom/issues/177))
+
 -------------------------------------------------------------------
 Thu Mar 19 08:50:17 UTC 2020 - Fabian Vogt <fvogt@suse.com>
 
diff --git a/earlyoom.spec b/earlyoom.spec
index d54d197..66c6926 100644
--- a/earlyoom.spec
+++ b/earlyoom.spec
@@ -20,14 +20,14 @@
 %global _fillupdir %{_localstatedir}/adm/fillup-templates
 %endif
 Name:           earlyoom
-Version:        1.4
+Version:        1.6
 Release:        0
 Summary:        Early OOM Daemon for Linux
 License:        MIT
 Group:          System/Daemons
-URL:            https://github.com/rfjakob/earlyoom
-Source0:        https://github.com/rfjakob/earlyoom/archive/v%{version}.tar.gz#/%{name}-%{version}.tar.gz
-Source11:       earlyoom.sysconfig
+URL:            https://github.com/rfjakob/%{name}
+Source0:        %{URL}/archive/v%{version}.tar.gz#/%{name}-%{version}.tar.gz
+Source11:       %{name}.sysconfig
 # pandoc only for `pandoc MANPAGE.md -s -t man > earlyoom.1`
 BuildRequires:  pandoc
 BuildRequires:  pkgconfig
@@ -41,7 +41,7 @@ earlyoom checks the amount of available memory and free swap, and if both are
 below critical level, it will kill the largest process (highest oom_score).
 
 %prep
-%setup -q
+%autosetup
 
 # Fix defaults file location
 sed -i 's|/default/|/sysconfig/|' earlyoom.service.in
@@ -50,8 +50,9 @@ sed -i 's|/default/|/sysconfig/|' earlyoom.service.in
 sed -ri '/LDFLAGS/ s|$| -lrt|' Makefile
 
 %build
-CFLAGS='%{optflags} -DVERSION=\"%{version}\" -std=gnu99'
-%make_build CFLAGS="$CFLAGS" PREFIX=%{_prefix}
+CFLAGS='%{?build_cflags}%{!?build_cflags:%optflags} -DVERSION=\"%{version}\" -std=gnu99'
+CPPFLAGS='%{?build_cxxflags}%{!?build_cxxflags:%optflags}'
+%make_build CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" PREFIX=%{_prefix}
 
 %install
 %make_install PREFIX=%{_prefix} SYSTEMDUNITDIR=%{_unitdir}