diff --git a/.gitignore b/.gitignore
index 6bc9086..e07c8c8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-SOURCES/vdo-b033725.tar.gz
+SOURCES/vdo-eff92d1.tar.gz
diff --git a/.vdo.metadata b/.vdo.metadata
index 3b52be9..3753ed2 100644
--- a/.vdo.metadata
+++ b/.vdo.metadata
@@ -1 +1 @@
-fda3b4a1a22c68d3223b9d398ac828317275ce4f  SOURCES/vdo-b033725.tar.gz
+af56f8789ccd3ac7ed4b8b19ed372e30742a64b5 SOURCES/vdo-eff92d1.tar.gz
diff --git a/SOURCES/bz1658224-fix_blkid_call.patch b/SOURCES/bz1658224-fix_blkid_call.patch
deleted file mode 100644
index 6501d9c..0000000
--- a/SOURCES/bz1658224-fix_blkid_call.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -Naur vdo-bebf98eac4903b7619e10b49dababad9f5cd8535.orig/vdo-manager/vdomgmnt/VDOService.py vdo-bebf98eac4903b7619e10b49dababad9f5cd8535/vdo-manager/vdomgmnt/VDOService.py
---- vdo-bebf98eac4903b7619e10b49dababad9f5cd8535.orig/vdo-manager/vdomgmnt/VDOService.py	2018-12-14 16:50:00.000000000 -0500
-+++ vdo-bebf98eac4903b7619e10b49dababad9f5cd8535/vdo-manager/vdomgmnt/VDOService.py	2018-12-14 18:04:17.051668198 -0500
-@@ -1395,7 +1395,7 @@
-     # volumes the above check won't trigger an error. So do a second
-     # check that catches that.
-     try:
--      runCommand(['blkid', '-p', self.device])
-+      runCommand(['blkid', '-p', '--no-part-details', self.device])
-     except CommandError as e:
-       if e.getExitCode() == 2:
-         return
diff --git a/SOURCES/fix_dmeventd_linking.patch b/SOURCES/fix_dmeventd_linking.patch
index 35a8e5e..ddc30cf 100644
--- a/SOURCES/fix_dmeventd_linking.patch
+++ b/SOURCES/fix_dmeventd_linking.patch
@@ -1,10 +1,10 @@
-diff -Naur vdo-3ec5c4fef536f8b4420581464e9053a76d61d05a.orig/utils/vdo/user/Makefile vdo-3ec5c4fef536f8b4420581464e9053a76d61d05a/utils/vdo/user/Makefile
---- vdo-3ec5c4fef536f8b4420581464e9053a76d61d05a.orig/utils/vdo/user/Makefile	2018-11-15 21:11:35.000000000 -0500
-+++ vdo-3ec5c4fef536f8b4420581464e9053a76d61d05a/utils/vdo/user/Makefile	2018-11-16 13:59:51.998828080 -0500
-@@ -144,7 +144,7 @@
- 	echo "Building $@ from $^"
+diff -Naur vdo-eff92d15b7e223bc0ba93fddf1486cf771e7bf17.orig/utils/vdo/user/Makefile vdo-eff92d15b7e223bc0ba93fddf1486cf771e7bf17/utils/vdo/user/Makefile
+--- vdo-eff92d15b7e223bc0ba93fddf1486cf771e7bf17.orig/utils/vdo/user/Makefile	2020-05-29 22:20:46.000000000 -0400
++++ vdo-eff92d15b7e223bc0ba93fddf1486cf771e7bf17/utils/vdo/user/Makefile	2020-06-02 19:07:57.986213915 -0400
+@@ -151,7 +151,7 @@
  	$(CC) $(LDFLAGS) $^ $(LDPRFLAGS) -o $@
  
+ vdoformat: LDPRFLAGS += "-lblkid"
 -vdodmeventd: LDPRFLAGS += "-ldevmapper-event"
 +vdodmeventd: LDPRFLAGS += -ldevmapper -ldevmapper-event
  
diff --git a/SPECS/vdo.spec b/SPECS/vdo.spec
index 8c5a124..c8e4d66 100644
--- a/SPECS/vdo.spec
+++ b/SPECS/vdo.spec
@@ -1,8 +1,8 @@
-%global commit           b03372526d8c0cb58766180dd8190128892fea3f
-%global gittag           6.2.2.117
+%global commit           eff92d15b7e223bc0ba93fddf1486cf771e7bf17
+%global gittag           6.2.3.91
 %global shortcommit      %(c=%{commit}; echo ${c:0:7})
 
-%define spec_release 13
+%define spec_release 14
 Summary: Management tools for Virtual Data Optimizer
 Name: vdo
 Version: %{gittag}
@@ -10,7 +10,6 @@ Release: %{spec_release}%{?dist}
 License: GPLv2
 Source0: https://github.com/dm-vdo/%{name}/archive/%{commit}/%{name}-%{shortcommit}.tar.gz
 Patch0:  fix_dmeventd_linking.patch
-Patch1:  bz1658224-fix_blkid_call.patch
 URL: http://github.com/dm-vdo/vdo
 Requires: lvm2 >= 2.03
 Requires: python3-PyYAML >= 3.10
@@ -23,6 +22,7 @@ ExcludeArch: ppc
 ExcludeArch: ppc64
 ExcludeArch: i686
 BuildRequires: gcc
+BuildRequires: libblkid-devel
 BuildRequires: libuuid-devel
 BuildRequires: device-mapper-devel
 BuildRequires: device-mapper-event-devel
@@ -47,7 +47,6 @@ This package provides the user-space management tools for VDO.
 %prep
 %setup -q -n %{name}-%{commit}
 %patch0 -p1
-%patch1 -p1
 
 %build
 make
@@ -77,12 +76,12 @@ done
 %files
 #defattr(-,root,root)
 %{_bindir}/vdo
+%{_bindir}/vdo-by-dev
 %{_bindir}/vdostats
 %{_bindir}/vdodmeventd
 %{_bindir}/vdodumpconfig
 %{_bindir}/vdoforcerebuild
 %{_bindir}/vdoformat
-%{_bindir}/vdoreadonly
 %{_bindir}/vdosetuuid
 %dir %{python3_sitelib}/%{name}
 %{python3_sitelib}/%{name}/__init__.py
@@ -182,10 +181,12 @@ done
 %{python3_sitelib}/%{name}/utils/__pycache__/__init__.cpython-36.opt-1.pyc
 %{python3_sitelib}/%{name}/utils/__pycache__/__init__.cpython-36.pyc
 %{_unitdir}/vdo.service
+%{_unitdir}/vdo-start-by-dev@.service
 %{_presetdir}/97-vdo.preset
 %dir %{_sysconfdir}/bash_completion.d
 %{_sysconfdir}/bash_completion.d/vdostats
 %{_sysconfdir}/bash_completion.d/vdo
+%{_sysconfdir}/udev/rules.d/69-vdo-start-by-dev.rules
 %dir %{_defaultdocdir}/%{name}
 %license %{_defaultdocdir}/%{name}/COPYING
 %dir %{_defaultdocdir}/%{name}/examples
@@ -208,7 +209,69 @@ done
 %{_mandir}/man8/vdoformat.8.gz
 %{_mandir}/man8/vdosetuuid.8.gz
 
+%package support
+Summary: Support tools for Virtual Data Optimizer
+License: GPLv2
+Requires: libuuid >= 2.23
+
+%description support
+Virtual Data Optimizer (VDO) is a device mapper target that delivers
+block-level deduplication, compression, and thin provisioning.
+
+This package provides the user-space support tools for VDO.
+
+%files support
+%{_bindir}/vdoaudit
+%{_bindir}/vdodebugmetadata
+%{_bindir}/vdodumpblockmap
+%{_bindir}/vdodumpmetadata
+%{_bindir}/vdolistmetadata
+%{_bindir}/vdoreadonly
+%{_bindir}/vdoregenerategeometry
+%{_mandir}/man8/vdoaudit.8.gz
+%{_mandir}/man8/vdodebugmetadata.8.gz
+%{_mandir}/man8/vdodumpblockmap.8.gz
+%{_mandir}/man8/vdodumpmetadata.8.gz
+%{_mandir}/man8/vdolistmetadata.8.gz
+%{_mandir}/man8/vdoreadonly.8.gz
+%{_mandir}/man8/vdoregenerategeometry.8.gz
+
 %changelog
+* Tue Jun 02 2020 - Andy Walsh <awalsh@redhat.com> - 6.2.3.91-14
+- Removed unused UDS bio statistics
+- Resolves: rhbz#1827762
+- Added a summary mode to vdoaudit and made this mode the default. Also
+  added histograms.
+- Resolves: rhbz#1687996
+- Modified vdostats to accept short (one character) options.
+- Resolves: rhbz#1787472
+- Modified vdo script to use lsblk to identify LVM created VDO volumes.
+- Resolves: rhbz#1825344
+- Modified vdo script to avoid unnecessary config file updates when
+  removing VDO volumes.
+- Resolves: rhbz#1804440
+- Fixed a cast which caused a Coverity complaint.
+- Resolves: rhbz#1827763
+- Fixed a cut&paste error in the vdosetuuid man page.
+- Resolves: rhbz#1643297
+- Fixed documentation of logical threads.
+- Resolves: rhbz#1827764
+- Began creation of a package of binaries for investigating VDO issues.
+- Resolves: rhbz#1643297
+- Updated VDO to use udev/systemd rules for startup.
+- Resolves: rhbz#1837759
+- Modified VDO volume creation to use libblkid instead of pvcreate to
+  determine whether the underlying storage is already in use. Moved
+  these checks from the vdo script into the vdoformat utility.
+- Resolves: rhbz#1771698
+- Modified the vdo status command to treat a running vdo volume is
+  authoratative over the config file.
+- Resolves: rhbz#1790983
+- Added a new utility, vdoregenerategeometry, which can be used to
+  recover a VDO whose initial blocks have been overwritten
+  accidentaly.
+- Resolves: rhbz#1773421
+
 * Tue Feb 11 2020 - Andy Walsh <awalsh@redhat.com> - 6.2.2.117-13
 - Improved man pages and help text for vdo script and vdo utilities.
 - Resolves: rhbz#1505748