diff --git a/.gitignore b/.gitignore
index 5ebb2c3..2cbe1a6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,5 @@
 /libvarlink-17.tar.gz
 /libvarlink-18.tar.gz
 /libvarlink-19.tar.gz
+/libvarlink-20.tar.gz
+/libvarlink-21.tar.gz
diff --git a/.packit.yaml b/.packit.yaml
new file mode 100644
index 0000000..1f745f6
--- /dev/null
+++ b/.packit.yaml
@@ -0,0 +1,14 @@
+# See the documentation for more information:
+# https://packit.dev/docs/configuration/
+
+specfile_path: libvarlink.spec
+
+# add or remove files that should be synced
+synced_files:
+    - libvarlink.spec
+    - .packit.yaml
+
+# name in upstream package repository/registry (e.g. in PyPI)
+upstream_package_name: libvarlink
+# downstream (Fedora) RPM package name
+downstream_package_name: libvarlink
diff --git a/README.packit b/README.packit
new file mode 100644
index 0000000..9dda7d1
--- /dev/null
+++ b/README.packit
@@ -0,0 +1,3 @@
+This repository is maintained by packit.
+https://packit.dev/
+The file was generated using packit 0.25.1.dev32+gfbebe78.
diff --git a/libvarlink.spec b/libvarlink.spec
index ab5e1d6..40f8b19 100644
--- a/libvarlink.spec
+++ b/libvarlink.spec
@@ -1,17 +1,15 @@
 %global _hardened_build 1
 
 Name:           libvarlink
-Version:        19
-Release:        5%{?dist}
+Version:        21
+Release:        1%{?dist}
 Summary:        Varlink C Library
-License:        ASL 2.0
+License:        ASL 2.0 and BSD-3-Clause
 URL:            https://github.com/varlink/%{name}
 Source0:        https://github.com/varlink/%{name}/archive/%{version}/%{name}-%{version}.tar.gz
 BuildRequires:  meson
 BuildRequires:  gcc
-
-# Upstream patch for https://github.com/varlink/libvarlink/issues/22
-Patch0001: 0001-Drop-tags-and-ctags-targets.patch
+BuildRequires:  glibc-langpack-de
 
 %description
 Varlink C Library
@@ -34,11 +32,6 @@ The %{name}-util package contains varlink command line tools.
 %autosetup
 
 %build
-# The testsuite in this packages uses readelf which does not understand LTO
-# .o files
-# Disable LTO
-%define _lto_cflags %{nil}
-
 %meson
 %meson_build
 
@@ -66,6 +59,20 @@ export LC_CTYPE=C.utf8
 %{_libdir}/pkgconfig/libvarlink.pc
 
 %changelog
+* Di Feb 23 2021 Harald Hoyer <harald@redhat.com> - 21-1
+- ci: add .packit.yaml (Harald Hoyer)
+- version 21 (Harald Hoyer)
+- fix: use strtod_l (Harald Hoyer)
+- fix: return VARLINK_ERROR_PANIC on float Inf or NaN (Harald Hoyer)
+- tests: add test with de_DE.UTF-8 locale (Harald Hoyer)
+- ci: install de_DE.UTF-8 locale (Harald Hoyer)
+- fix: correct the float number parsing for some locales (Harald Hoyer)
+- tests: print error log on `make check` (Harald Hoyer)
+- docs: update README.md (Harald Hoyer)
+
+* Thu Feb 18 2021 Harald Hoyer <harald@redhat.com> - 20-1
+- libvarlink 20
+
 * Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 19-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
 
diff --git a/sources b/sources
index 0b39117..fb15a23 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (libvarlink-19.tar.gz) = 395aaf08e5166daf31c1d3cd05ed7ad2982e817a022f2e6bf6512664f45107ed98c56d851ac098778f9018807ca98fd2903c1ee5aac387691d64610e46ea435b
+SHA512 (libvarlink-21.tar.gz) = 863f5ab0ae86fac4a4444fda8c084b55a2e51de382638ca1e859c82275892b1f726a429e28441df4271d3bb523b138f99ecebcc9adc513bc935333c6bb6096a7
diff --git a/tests/sanity/runtest.sh b/tests/sanity/runtest.sh
index c2442d4..5e7e67d 100755
--- a/tests/sanity/runtest.sh
+++ b/tests/sanity/runtest.sh
@@ -7,17 +7,17 @@ PACKAGE="libvarlink"
 rlJournalStart
     rlPhaseStartSetup
         rlAssertRpm $PACKAGE
-        rlRun "git clone https://github.com/varlink/libvarlink; cd libvarlink; meson build;make"
+        rlRun "mkdir -p $HOME/.cargo/bin; cargo install --git https://github.com/varlink/rust varlink-certification"
     rlPhaseEnd
 
     rlPhaseStartTest
-        rlLog "Starting tests ..."
-        rlRun "cd build; ninja test"
+        rlLog "Starting test ..."
+        rlRun "varlink --bridge \"varlink --bridge \\\"varlink -A '~/.cargo/bin/varlink-certification --varlink=\\\\\\\$VARLINK_ADDRESS' bridge\\\" bridge\" info | fgrep -q org.varlink.certification"
     rlPhaseEnd
 
     rlPhaseStartCleanup
        rlLog "libvarlink tests done"
-       rlRun "rm -rf libvarlink"
+       rlRun "rm -rf  $HOME/.cargo"
     rlPhaseEnd
 rlJournalPrintText
 rlJournalEnd
diff --git a/tests/tests.yml b/tests/tests.yml
index d8cdb3d..1147164 100644
--- a/tests/tests.yml
+++ b/tests/tests.yml
@@ -10,3 +10,5 @@
         - meson
         - ninja-build
         - gcc
+        - git
+        - cargo