diff --git a/contrib/debian/rules b/contrib/debian/rules
--- a/contrib/debian/rules
+++ b/contrib/debian/rules
@@ -1,6 +1,11 @@
 #!/usr/bin/make -f
 # -*- mode: makefile; coding: utf-8 -*-
 
+# Ubuntu Jammy enables LTO by default. This is great but this produces a bad
+# bitcoin-qt binary on amd64 (Qt5Core segfaults at startup) for some reason, so
+# we force disable it.
+export DEB_BUILD_MAINT_OPTIONS = optimize=-lto
+
 %:
 	dh $@ --buildsystem=cmake+ninja --builddirectory=_build
 
diff --git a/contrib/gitian-signing/keys.txt b/contrib/gitian-signing/keys.txt
--- a/contrib/gitian-signing/keys.txt
+++ b/contrib/gitian-signing/keys.txt
@@ -2,3 +2,4 @@
 3BB16D00D9A6D281591BDC76E4486356E7A81D2C jasonbcox@bitcoinabc.org
 B93D6215ED031A3384F5D3209C0D84E61FD02C16 fabien@bitcoinabc.org
 923C3E0FF2CDE340C7618B491EF82E337380E461 marco@bitcoinabc.org
+F7D2C66D608F03E15B5E1EA6CAF74C33DBE2797F fabcien@gmail.com
diff --git a/contrib/release/debian-packages.sh b/contrib/release/debian-packages.sh
--- a/contrib/release/debian-packages.sh
+++ b/contrib/release/debian-packages.sh
@@ -9,6 +9,8 @@
 DEFAULT_DISTROS+=("bionic")
 # Focal: Ubuntu 20.04 LTS
 DEFAULT_DISTROS+=("focal")
+# Jammy: Ubuntu 22.04 LTS
+DEFAULT_DISTROS+=("jammy")
 
 DEFAULT_PPA="bitcoin-abc"
 DPUT_CONFIG_FILE=~/".dput.cf"