diff --git a/MozillaThunderbird.changes b/MozillaThunderbird.changes
index 3e946a8..622b00c 100644
--- a/MozillaThunderbird.changes
+++ b/MozillaThunderbird.changes
@@ -1,3 +1,18 @@
+-------------------------------------------------------------------
+Fri Dec 20 21:14:53 UTC 2019 - Andreas Stieger <andreas.stieger@gmx.de>
+
+- Mozilla Thunderbird 68.3.1:
+  * In dark theme unread messages no longer shown in blue t
+    distinguish from tagged messages
+  * Account setup is now using client side DNS MX lookup instead of
+    relying on a server
+  * Searching LDAP address book crashed in some circumstances
+  * Message navigation with backward and forward buttons did not
+    work in some circumstances
+  * WebExtension toolbar icons were displayed too small
+  * Calendar: Tasks due today were not listed in bold
+  * Calendar: Last day of long-running events was not shown
+
 -------------------------------------------------------------------
 Thu Dec  5 10:29:18 UTC 2019 - Wolfgang Rosenauer <wr@rosenauer.org>
 
diff --git a/MozillaThunderbird.spec b/MozillaThunderbird.spec
index 1c1e633..2d45671 100644
--- a/MozillaThunderbird.spec
+++ b/MozillaThunderbird.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package MozillaThunderbird
 #
-# Copyright (c) 2019 SUSE LLC
+# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
 #               2006-2019 Wolfgang Rosenauer <wr@rosenauer.org>
 #
 # All modifications and additions to the file contributed by third parties
@@ -26,8 +26,8 @@
 # major 69
 # mainver %major.99
 %define major           68
-%define mainver         %major.3.0
-%define orig_version    68.3.0
+%define mainver         %major.3.1
+%define orig_version    68.3.1
 %define orig_suffix     %{nil}
 %define update_channel  release
 %define source_prefix   thunderbird-%{mainver}
diff --git a/l10n-68.3.0.tar.xz b/l10n-68.3.0.tar.xz
deleted file mode 100644
index 3215f44..0000000
--- a/l10n-68.3.0.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:4f76c38d29938dc1a4470b2e23ee2916d84afe0d0e83f02d78511c24c5da766e
-size 28477540
diff --git a/l10n-68.3.1.tar.xz b/l10n-68.3.1.tar.xz
new file mode 100644
index 0000000..3f41863
--- /dev/null
+++ b/l10n-68.3.1.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eeba733284720a5476ea8e63c59a6f9df3bdbfe3a80dc24612901228f50f4498
+size 28748344
diff --git a/tar_stamps b/tar_stamps
index 91d7f28..ee3198e 100644
--- a/tar_stamps
+++ b/tar_stamps
@@ -1,11 +1,11 @@
 PRODUCT="thunderbird"
 CHANNEL="esr68"
-VERSION="68.3.0"
+VERSION="68.3.1"
 VERSION_SUFFIX=""
-PREV_VERSION="68.2.1"
+PREV_VERSION="68.3.0"
 PREV_VERSION_SUFFIX=""
 #SKIP_LOCALES="" # Uncomment to skip l10n and compare-locales-generation
 
 RELEASE_REPO="https://hg.mozilla.org/releases/comm-esr68"
-RELEASE_TAG="228eab07a730c48763e1cd0ccff9491f66e4580e"
-RELEASE_TIMESTAMP="20191129091924"
+RELEASE_TAG="dfeab0e6d5a43c6bcb1575bbdc5c0d018b42df9b"
+RELEASE_TIMESTAMP="20191215232630"
diff --git a/thunderbird-68.3.0.source.tar.xz b/thunderbird-68.3.0.source.tar.xz
deleted file mode 100644
index 2b21131..0000000
--- a/thunderbird-68.3.0.source.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:f68cb53deb6c1840cc3f2b1e842bac8ebaf090e9cd89afb376ba0e1ba62820aa
-size 331088404
diff --git a/thunderbird-68.3.0.source.tar.xz.asc b/thunderbird-68.3.0.source.tar.xz.asc
deleted file mode 100644
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--- a/thunderbird-68.3.0.source.tar.xz.asc
+++ /dev/null
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--- /dev/null
+++ b/thunderbird-68.3.1.source.tar.xz
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