diff --git a/.gitignore b/.gitignore
index 82aa739..71b035a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@
 /dist-git-1.13.tar.gz
 /dist-git-1.14.tar.gz
 /dist-git-1.15.tar.gz
+/dist-git-1.16.tar.gz
diff --git a/dist-git.spec b/dist-git.spec
index 6ab9a14..47ff4af 100644
--- a/dist-git.spec
+++ b/dist-git.spec
@@ -3,7 +3,7 @@
 %global installdir /var/lib/dist-git
 
 Name:           dist-git
-Version:        1.15
+Version:        1.16
 Release:        2%{?dist}
 Summary:        Package source version control system
 
@@ -44,7 +44,7 @@ Requires:       moreutils
 %else
 Requires:       python3-requests
 Recommends:     python3-grokmirror
-Recommends:     python3-fedmsg
+Suggests:       python3-fedmsg
 Suggests:       fedora-messaging
 BuildRequires:  python3-nose
 BuildRequires:  python3-parameterized
@@ -161,6 +161,7 @@ ln -s %{_datadir}/dist-git/setup_git_package %{buildroot}%{_bindir}/setup_git_pa
 ln -s %{_datadir}/dist-git/mkbranch %{buildroot}%{_bindir}/mkbranch
 ln -s %{_datadir}/dist-git/mkbranch_branching %{buildroot}%{_bindir}/mkbranch_branching
 ln -s %{_datadir}/dist-git/remove_unused_sources %{buildroot}%{_bindir}/remove_unused_sources
+mv %{buildroot}%{_datadir}/dist-git/dist-git-gc %{buildroot}%{_bindir}/dist-git-gc
 
 # ------------------------------------------------------------------------------
 # SELinux
@@ -222,6 +223,8 @@ fi
 
 %{_unitdir}/dist-git@.service
 %{_unitdir}/dist-git.socket
+%{_unitdir}/dist-git-gc.service
+%{_unitdir}/dist-git-gc.timer
 
 # ------------------------------------------------------------------------------
 # /var/lib/ ...... dynamic persistent files
@@ -251,6 +254,18 @@ fi
 %{_bindir}/*
 
 %changelog
+=======
+* Mon Oct 5 2020 clime <clime@fedoraproject.com> - 1.16-2
+- use simpler dist-git-selinux require due to build-system problem
+
+* Mon Oct 5 2020 clime <clime@fedoraproject.com> - 1.16-1
+- fixed exceptions for fedora-messaging
+- fixed topic for fedora-messaging (to git.lookaside.new)
+- spec tweak not to require distgit-selinux in containers
+- only Suggests fedmsg
+- garbage collection (git gc) script and systemd timer
+  for its periodic run added
+
 * Fri Jun 12 2020 clime <clime@fedoraproject.com> - 1.15-2
 - disable tests as they are not executed properly for epel8 builds
 
diff --git a/sources b/sources
index 42b9f0c..d06935c 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (dist-git-1.15.tar.gz) = 005def569bf512fad536a7711980c00560662fef19a85c165495948353e91b2d7ac42a4a8994b5ae75baf1c39e609bc5693554408ca343e24b68df4f56a8fef0
+SHA512 (dist-git-1.16.tar.gz) = eabea892357ca9fbe63fef19e6439ff6f91c6b20f1c31a5dd567bf405b9024b06c2e199e5ff2594969958e92d413e4f400e0df462a9c865e955eb51915db599f