diff --git a/.gitignore b/.gitignore
index 3bfcaed..d139924 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,9 +3,9 @@ SOURCES/Python-3.6.8.tar.xz
 SOURCES/cbindgen-vendor.tar.xz
 SOURCES/gtk3-private-3.22.26-1.el6.src.rpm
 SOURCES/libffi-3.0.13-18.el7_3.src.rpm
-SOURCES/lightning-langpacks-68.10.0.tar.xz
+SOURCES/lightning-langpacks-68.11.0.tar.xz
 SOURCES/nodejs-8.11.4-1.3.fc27.src.rpm
 SOURCES/openssl-1.0.2k-19.6.bundle.el7_7.src.rpm
-SOURCES/thunderbird-68.10.0.source.tar.xz
-SOURCES/thunderbird-langpacks-68.10.0-20200708.tar.xz
+SOURCES/thunderbird-68.11.0.source.tar.xz
+SOURCES/thunderbird-langpacks-68.11.0-20200804.tar.xz
 SOURCES/yasm-1.2.0-3.el5.src.rpm
diff --git a/.thunderbird.metadata b/.thunderbird.metadata
index 0137d4d..fa1d651 100644
--- a/.thunderbird.metadata
+++ b/.thunderbird.metadata
@@ -3,9 +3,9 @@ ee55acedef049268307633cbc9c7ff0610d1244f SOURCES/Python-3.6.8.tar.xz
 e86c38c48960b95353503b78e1de9ddca1ed34d7 SOURCES/cbindgen-vendor.tar.xz
 0de63f863b158454b9429234b52ed28a397ec45c SOURCES/gtk3-private-3.22.26-1.el6.src.rpm
 e188ab1a444697bc649e223c28389d82ca94c472 SOURCES/libffi-3.0.13-18.el7_3.src.rpm
-f01d771167cc9fc830a5f30c45a62e0d475e0eee SOURCES/lightning-langpacks-68.10.0.tar.xz
+8476c6e7c27eba1836581ad86fc504e4853f077b SOURCES/lightning-langpacks-68.11.0.tar.xz
 4f8d3bf2483d95261ff90742ecec82d6a899eca3 SOURCES/nodejs-8.11.4-1.3.fc27.src.rpm
 a379070abf5000cde61411c97af7e733b267a4d3 SOURCES/openssl-1.0.2k-19.6.bundle.el7_7.src.rpm
-a71d9bbd9d587e521b5a7b0ff4b4d13c79bdb4cf SOURCES/thunderbird-68.10.0.source.tar.xz
-af927b9b4b65c093f62a81b8c42ac8af29650c34 SOURCES/thunderbird-langpacks-68.10.0-20200708.tar.xz
+7b5764677819ca27af51b5e9b4be0d8180a8bfed SOURCES/thunderbird-68.11.0.source.tar.xz
+627fbe742a97fcfa7b4b08c8e9688b95a043bcba SOURCES/thunderbird-langpacks-68.11.0-20200804.tar.xz
 77fd30f7ebc12a629a31c1e252cec06af55a71fe SOURCES/yasm-1.2.0-3.el5.src.rpm
diff --git a/README.debrand b/README.debrand
deleted file mode 100644
index 01c46d2..0000000
--- a/README.debrand
+++ /dev/null
@@ -1,2 +0,0 @@
-Warning: This package was configured for automatic debranding, but the changes
-failed to apply.
diff --git a/SOURCES/Bug-1238661---fix-mozillaSignalTrampoline-to-work-.patch b/SOURCES/Bug-1238661---fix-mozillaSignalTrampoline-to-work-.patch
deleted file mode 100644
index 6dfe2ad..0000000
--- a/SOURCES/Bug-1238661---fix-mozillaSignalTrampoline-to-work-.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -up firefox-60.0/mfbt/LinuxSignal.h.mozilla-1238661 firefox-60.0/mfbt/LinuxSignal.h
---- firefox-60.0/mfbt/LinuxSignal.h.mozilla-1238661	2018-04-27 08:55:38.848241768 +0200
-+++ firefox-60.0/mfbt/LinuxSignal.h	2018-04-27 09:06:47.946769859 +0200
-@@ -22,7 +22,7 @@ __attribute__((naked)) void SignalTrampo
-                                              void* aContext) {
-   asm volatile("nop; nop; nop; nop" : : : "memory");
- 
--  asm volatile("b %0" : : "X"(H) : "memory");
-+  asm volatile("bx %0" : : "r"(H), "l"(aSignal), "l"(aInfo), "l"(aContext) : "memory");
- }
- 
- #  define MOZ_SIGNAL_TRAMPOLINE(h) (mozilla::SignalTrampoline<h>)
diff --git a/SOURCES/Bug-1526653---fix_user_vfp_armv7.patch b/SOURCES/Bug-1526653---fix_user_vfp_armv7.patch
deleted file mode 100644
index 3f84f95..0000000
--- a/SOURCES/Bug-1526653---fix_user_vfp_armv7.patch
+++ /dev/null
@@ -1,35 +0,0 @@
-From fd6847c9416f9eebde636e21d794d25d1be8791d Mon Sep 17 00:00:00 2001
-From: Mike Hommey <mh@glandium.org>
-Date: Sat, 1 Jun 2019 09:06:01 +0900
-Subject: [PATCH] Bug 1526653 - Include struct definitions for user_vfp and
- user_vfp_exc.
-
----
- js/src/wasm/WasmSignalHandlers.cpp | 11 ++++++++++-
- 1 file changed, 10 insertions(+), 1 deletion(-)
-
-diff --git a/js/src/wasm/WasmSignalHandlers.cpp b/js/src/wasm/WasmSignalHandlers.cpp
-index 636537f8478..383c380f04c 100644
---- a/js/src/wasm/WasmSignalHandlers.cpp
-+++ b/js/src/wasm/WasmSignalHandlers.cpp
-@@ -248,7 +248,16 @@ using mozilla::DebugOnly;
- #endif
- 
- #ifdef WASM_EMULATE_ARM_UNALIGNED_FP_ACCESS
--#  include <sys/user.h>
-+struct user_vfp {
-+  unsigned long long fpregs[32];
-+  unsigned long fpscr;
-+};
-+
-+struct user_vfp_exc {
-+  unsigned long fpexc;
-+  unsigned long fpinst;
-+  unsigned long fpinst2;
-+};
- #endif
- 
- #if defined(ANDROID)
--- 
-2.20.1
-
diff --git a/SOURCES/no-rust-lto.patch b/SOURCES/no-rust-lto.patch
index 7d8ae5d..227bb9c 100644
--- a/SOURCES/no-rust-lto.patch
+++ b/SOURCES/no-rust-lto.patch
@@ -1,12 +1,14 @@
-diff -up firefox-68.0/config/makefiles/rust.mk.old firefox-68.0/config/makefiles/rust.mk
---- firefox-68.0/config/makefiles/rust.mk.old	2019-06-05 10:33:34.290128660 +0200
-+++ firefox-68.0/config/makefiles/rust.mk	2019-06-05 10:33:59.835052814 +0200
-@@ -47,7 +47,7 @@ cargo_rustc_flags = $(CARGO_RUSTCFLAGS)
- ifndef DEVELOPER_OPTIONS
- ifndef MOZ_DEBUG_RUST
- # Enable link-time optimization for release builds.
+diff -up thunderbird-68.11.0/config/makefiles/rust.mk.no-rust-lto thunderbird-68.11.0/config/makefiles/rust.mk
+--- thunderbird-68.11.0/config/makefiles/rust.mk.no-rust-lto	2020-08-04 12:01:08.172071480 +0200
++++ thunderbird-68.11.0/config/makefiles/rust.mk	2020-08-04 12:26:25.927808414 +0200
+@@ -50,8 +50,8 @@ ifndef MOZ_DEBUG_RUST
+ # Pass -Clto for older versions of rust, and CARGO_PROFILE_RELEASE_LTO=true
+ # for newer ones that support it. Combining the latter with -Clto works, so
+ # set both everywhere.
 -cargo_rustc_flags += -C lto
+-export CARGO_PROFILE_RELEASE_LTO=true
 +#cargo_rustc_flags += -C lto
++#export CARGO_PROFILE_RELEASE_LTO=true
  endif
  endif
  
diff --git a/SOURCES/thunderbird-centos-default-prefs.js.el6 b/SOURCES/thunderbird-centos-default-prefs.js.el6
deleted file mode 100644
index 75de82e..0000000
--- a/SOURCES/thunderbird-centos-default-prefs.js.el6
+++ /dev/null
@@ -1,30 +0,0 @@
-pref("app.update.enabled", false);
-pref("app.update.autoInstallEnabled", false);
-# Allow users to set custom colors
-# pref("browser.display.use_system_colors",   true);
-pref("general.useragent.vendor", "CentOS");
-pref("general.useragent.vendorSub", "THUNDERBIRD_RPM_VR");
-pref("intl.locale.matchOS", true);
-pref("mail.shell.checkDefaultClient", false);
-pref("toolkit.networkmanager.disable", false);
-pref("offline.autoDetect", true);
-
-# Disable global indexing by default
-pref("mailnews.database.global.indexer.enabled", false);
-
-# Do not switch to Smart Folders after upgrade to 3.0b4
-pref("mail.folder.views.version", "1");
-pref("extensions.shownSelectionUI", true);
-pref("extensions.autoDisableScope", 0);
-
-# For rhbz#1024232
-pref("ui.SpellCheckerUnderlineStyle",       1);
-
-/* Workaround for rhbz#1134876 */
-pref("javascript.options.baselinejit",      false);
-/* Workaround for rhbz#1110291 */
-pref("network.negotiate-auth.allow-insecure-ntlm-v1", true);
-/* Workaround for mozbz#1063315 */
-pref("security.use_mozillapkix_verification", false);
-/* Use OS settings for UI language */
-pref("intl.locale.requested", "");
diff --git a/SOURCES/thunderbird-centos-default-prefs.js.el7 b/SOURCES/thunderbird-centos-default-prefs.js.el7
deleted file mode 100644
index 75de82e..0000000
--- a/SOURCES/thunderbird-centos-default-prefs.js.el7
+++ /dev/null
@@ -1,30 +0,0 @@
-pref("app.update.enabled", false);
-pref("app.update.autoInstallEnabled", false);
-# Allow users to set custom colors
-# pref("browser.display.use_system_colors",   true);
-pref("general.useragent.vendor", "CentOS");
-pref("general.useragent.vendorSub", "THUNDERBIRD_RPM_VR");
-pref("intl.locale.matchOS", true);
-pref("mail.shell.checkDefaultClient", false);
-pref("toolkit.networkmanager.disable", false);
-pref("offline.autoDetect", true);
-
-# Disable global indexing by default
-pref("mailnews.database.global.indexer.enabled", false);
-
-# Do not switch to Smart Folders after upgrade to 3.0b4
-pref("mail.folder.views.version", "1");
-pref("extensions.shownSelectionUI", true);
-pref("extensions.autoDisableScope", 0);
-
-# For rhbz#1024232
-pref("ui.SpellCheckerUnderlineStyle",       1);
-
-/* Workaround for rhbz#1134876 */
-pref("javascript.options.baselinejit",      false);
-/* Workaround for rhbz#1110291 */
-pref("network.negotiate-auth.allow-insecure-ntlm-v1", true);
-/* Workaround for mozbz#1063315 */
-pref("security.use_mozillapkix_verification", false);
-/* Use OS settings for UI language */
-pref("intl.locale.requested", "");
diff --git a/SOURCES/thunderbird-redhat-default-prefs.js.rhel6 b/SOURCES/thunderbird-redhat-default-prefs.js.rhel6
new file mode 100644
index 0000000..c412cb5
--- /dev/null
+++ b/SOURCES/thunderbird-redhat-default-prefs.js.rhel6
@@ -0,0 +1,30 @@
+pref("app.update.enabled", false);
+pref("app.update.autoInstallEnabled", false);
+# Allow users to set custom colors
+# pref("browser.display.use_system_colors",   true);
+pref("general.useragent.vendor", "Red Hat");
+pref("general.useragent.vendorSub", "THUNDERBIRD_RPM_VR");
+pref("intl.locale.matchOS", true);
+pref("mail.shell.checkDefaultClient", false);
+pref("toolkit.networkmanager.disable", false);
+pref("offline.autoDetect", true);
+
+# Disable global indexing by default
+pref("mailnews.database.global.indexer.enabled", false);
+
+# Do not switch to Smart Folders after upgrade to 3.0b4
+pref("mail.folder.views.version", "1");
+pref("extensions.shownSelectionUI", true);
+pref("extensions.autoDisableScope", 0);
+
+# For rhbz#1024232
+pref("ui.SpellCheckerUnderlineStyle",       1);
+
+/* Workaround for rhbz#1134876 */
+pref("javascript.options.baselinejit",      false);
+/* Workaround for rhbz#1110291 */
+pref("network.negotiate-auth.allow-insecure-ntlm-v1", true);
+/* Workaround for mozbz#1063315 */
+pref("security.use_mozillapkix_verification", false);
+/* Use OS settings for UI language */
+pref("intl.locale.requested", "");
diff --git a/SOURCES/thunderbird-redhat-default-prefs.js.rhel7 b/SOURCES/thunderbird-redhat-default-prefs.js.rhel7
new file mode 100644
index 0000000..c412cb5
--- /dev/null
+++ b/SOURCES/thunderbird-redhat-default-prefs.js.rhel7
@@ -0,0 +1,30 @@
+pref("app.update.enabled", false);
+pref("app.update.autoInstallEnabled", false);
+# Allow users to set custom colors
+# pref("browser.display.use_system_colors",   true);
+pref("general.useragent.vendor", "Red Hat");
+pref("general.useragent.vendorSub", "THUNDERBIRD_RPM_VR");
+pref("intl.locale.matchOS", true);
+pref("mail.shell.checkDefaultClient", false);
+pref("toolkit.networkmanager.disable", false);
+pref("offline.autoDetect", true);
+
+# Disable global indexing by default
+pref("mailnews.database.global.indexer.enabled", false);
+
+# Do not switch to Smart Folders after upgrade to 3.0b4
+pref("mail.folder.views.version", "1");
+pref("extensions.shownSelectionUI", true);
+pref("extensions.autoDisableScope", 0);
+
+# For rhbz#1024232
+pref("ui.SpellCheckerUnderlineStyle",       1);
+
+/* Workaround for rhbz#1134876 */
+pref("javascript.options.baselinejit",      false);
+/* Workaround for rhbz#1110291 */
+pref("network.negotiate-auth.allow-insecure-ntlm-v1", true);
+/* Workaround for mozbz#1063315 */
+pref("security.use_mozillapkix_verification", false);
+/* Use OS settings for UI language */
+pref("intl.locale.requested", "");
diff --git a/SPECS/thunderbird.spec b/SPECS/thunderbird.spec
index 9d5680c..c104e7a 100644
--- a/SPECS/thunderbird.spec
+++ b/SPECS/thunderbird.spec
@@ -1,9 +1,3 @@
-%ifarch %{arm}
-%if 0%{?rhel} == 8
-%undefine _debugsource_packages
-%endif
-%endif
-
 %global debug_build             0
 # Set for local builds only
 %global disable_toolsets        0
@@ -129,7 +123,7 @@
 
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
-Version:        68.10.0
+Version:        68.11.0
 Release:        1%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
@@ -145,7 +139,7 @@ ExclusiveArch:  i686 x86_64 ppc64 s390x
 # From ftp://archive.mozilla.org/pub/thunderbird/releases/%{version}%{?ext_version}/source
 Source0:        https://archive.mozilla.org/pub/thunderbird/releases/%{version}%{?pre_version}/source/thunderbird-%{version}%{?pre_version}.source.tar.xz
 %if %{build_langpacks}
-Source1:        thunderbird-langpacks-%{version}%{?ext_version}-20200708.tar.xz
+Source1:        thunderbird-langpacks-%{version}%{?ext_version}-20200804.tar.xz
 # Locales for lightning
 Source2:        lightning-langpacks-%{version}.tar.xz
 %endif
@@ -172,8 +166,8 @@ Source301:      yasm-1.2.0-3.el5.src.rpm
 Source303:      libffi-3.0.13-18.el7_3.src.rpm
 Source304:      nodejs-8.11.4-1.3.fc27.src.rpm
 Source305:      openssl-1.0.2k-19.6.bundle.el7_7.src.rpm
-Source601:      thunderbird-centos-default-prefs.js.el6
-Source701:      thunderbird-centos-default-prefs.js.el7
+Source601:      thunderbird-redhat-default-prefs.js.rhel6
+Source701:      thunderbird-redhat-default-prefs.js.rhel7
 
 ## Firefox patches
 
@@ -214,9 +208,6 @@ Patch402:        mozilla-1196777.patch
 ## Thunderbird patches
 
 Patch501:        python-encode.patch
-
-Patch10000:      Bug-1238661---fix-mozillaSignalTrampoline-to-work-.patch
-Patch10001:      Bug-1526653---fix_user_vfp_armv7.patch
 # ---------------------------------------------------
 
 BuildRequires:  autoconf213
@@ -438,11 +429,6 @@ Mozilla Thunderbird is a standalone mail and newsgroup client.
 %patch501 -p1 -b .python-encode
 %patch1001 -p1 -b .ppc64le-inline
 
-%ifarch %{arm}
-%patch10000 -p1 -b .mozilla-1238661
-%patch10001 -p1 -b .mozilla-1526653
-%endif
-
 %{__rm} -f .mozconfig
 %{__cp} %{SOURCE10} .mozconfig
 function add_to_mozconfig() {
@@ -491,12 +477,8 @@ function add_to_mozconfig() {
 %endif
 %ifarch armv7hl
 # ARMv7 need that (rhbz#1426850)
-%if 0%{?rhel} == 8
-%global optimize_flags "-g0 -O2 -fno-schedule-insns -fno-lto"
-%else
 %global optimize_flags "-g -O2 -fno-schedule-insns"
 %endif
-%endif
 %ifarch ppc64le aarch64
 %global optimize_flags "-g -O2"
 %endif
@@ -806,21 +788,11 @@ MOZ_OPT_FLAGS=$(echo "$MOZ_OPT_FLAGS" | %{__sed} -e 's/-g/-g1/')
 # (OOM when linking, rhbz#1238225)
 export MOZ_DEBUG_FLAGS=" "
 %endif
-%ifarch %{arm}
-%if 0%{?rhel} == 8
-MOZ_OPT_FLAGS=$(echo "$MOZ_OPT_FLAGS" | %{__sed} -e 's/-g/-g0/')
-export MOZ_DEBUG_FLAGS=" "
-%endif
-%endif
-%ifarch s390 %{arm} ppc aarch64 i686
+%ifarch s390 %{arm} ppc aarch64 i686 x86_64
 MOZ_LINK_FLAGS="-Wl,--no-keep-memory -Wl,--reduce-memory-overheads"
 %endif
 %ifarch %{arm}
 export RUSTFLAGS="-Cdebuginfo=0"
-%if 0%{?rhel} == 8
-MOZ_LINK_FLAGS="-Wl,--no-keep-memory"
-echo "ac_add_options --enable-linker=gold" >> .mozconfig
-%endif
 %endif
 %ifarch s390
 MOZ_OPT_FLAGS=$(echo "$MOZ_OPT_FLAGS" | %{__sed} -e 's/-g/-g1/')
@@ -855,7 +827,7 @@ MOZ_SMP_FLAGS=-j1
      RPM_BUILD_NCPUS="`/usr/bin/getconf _NPROCESSORS_ONLN`"
 [ "$RPM_BUILD_NCPUS" -ge 2 ] && MOZ_SMP_FLAGS=-j2
 [ "$RPM_BUILD_NCPUS" -ge 4 ] && MOZ_SMP_FLAGS=-j4
-[ "$RPM_BUILD_NCPUS" -ge 8 ] && MOZ_SMP_FLAGS=-j8
+[ "$RPM_BUILD_NCPUS" -ge 8 ] && MOZ_SMP_FLAGS=-j4
 %endif
 %endif
 
@@ -1137,8 +1109,8 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
-* Tue Jul 21 2020 CentOS Sources <bugs@centos.org> - 68.10.0-1.el8.centos
-- Apply debranding changes
+* Tue Aug 04 2020 Jan Horak <jhorak@redhat.com> - 68.11.0-1
+- Update to 68.11.0 build1
 
 * Wed Jul 08 2020 Jan Horak <jhorak@redhat.com> - 68.10.0-1
 - Update to 68.10.0 build1