diff --git a/NEWS b/NEWS
index 204ae4a3b..1cbd800e1 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,4 @@
-New in spot 2.10.5.dev  (not yet released)
+New in spot 2.10.6.dev  (not yet released)
 
   Command-line tools:
 
@@ -82,10 +82,7 @@ New in spot 2.10.5.dev  (not yet released)
     averted in the parser by delaying the construction of such n-ary
     nodes until all children are known.
 
-  - make_twa_graph() will now preserve state number when copying a
-    kripke_graph object.  As a consequence, print_dot() and
-    print_hoa() will now use state numbers matching those of the
-    kripke_graph (issue #505).
+New in spot 2.10.6  (2022-05-18)
 
   Bugs fixed:
 
@@ -94,6 +91,14 @@ New in spot 2.10.5.dev  (not yet released)
   - Using -Ffile/N to read column N of a CSV file would not reset the
     /N specification for the next file.
 
+  - make_twa_graph() will now preserve state number when copying a
+    kripke_graph object.  As a consequence, print_dot() and
+    print_hoa() will now use state numbers matching those of the
+    kripke_graph (issue #505).
+
+  - Fix several compilation warning introduced by newer versions
+    of GCC and Clang.
+
 New in spot 2.10.5  (2022-05-03)
 
   Bugs fixed:
diff --git a/configure.ac b/configure.ac
index 212db0432..2ac9ff616 100644
--- a/configure.ac
+++ b/configure.ac
@@ -21,7 +21,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 AC_PREREQ([2.69])
-AC_INIT([spot], [2.10.5.dev], [spot@lrde.epita.fr])
+AC_INIT([spot], [2.10.6.dev], [spot@lrde.epita.fr])
 AC_CONFIG_AUX_DIR([tools])
 AC_CONFIG_MACRO_DIR([m4])
 AM_INIT_AUTOMAKE([1.11 gnu tar-ustar color-tests parallel-tests])
diff --git a/doc/org/setup.org b/doc/org/setup.org
index c1b7e9235..52aa02639 100644
--- a/doc/org/setup.org
+++ b/doc/org/setup.org
@@ -1,11 +1,11 @@
 #+OPTIONS: H:2 num:nil toc:t html-postamble:nil ^:nil
 #+EMAIL: spot@lrde.epita.fr
 #+HTML_LINK_HOME: index.html
-#+MACRO: SPOTVERSION 2.10.5
-#+MACRO: LASTRELEASE 2.10.5
-#+MACRO: LASTTARBALL [[http://www.lrde.epita.fr/dload/spot/spot-2.10.5.tar.gz][=spot-2.10.5.tar.gz=]]
-#+MACRO: LASTNEWS [[https://gitlab.lrde.epita.fr/spot/spot/blob/spot-2-10-5/NEWS][summary of the changes]]
-#+MACRO: LASTDATE 2022-05-03
+#+MACRO: SPOTVERSION 2.10.6
+#+MACRO: LASTRELEASE 2.10.6
+#+MACRO: LASTTARBALL [[http://www.lrde.epita.fr/dload/spot/spot-2.10.6.tar.gz][=spot-2.10.6.tar.gz=]]
+#+MACRO: LASTNEWS [[https://gitlab.lrde.epita.fr/spot/spot/blob/spot-2-10-6/NEWS][summary of the changes]]
+#+MACRO: LASTDATE 2022-05-18
 
 #+ATTR_HTML: :id spotlogo
 [[file:spot2.svg]]
diff --git a/tests/python/kripke.py b/tests/python/kripke.py
index b1669bb78..3670f592d 100644
--- a/tests/python/kripke.py
+++ b/tests/python/kripke.py
@@ -76,6 +76,24 @@ State: [!0&!1] 2 "s2"
 --END--"""
 tc.assertEqual(hoa, k.to_str('HOA'))
 
+k.set_state_names(["s0", "s1", "s2"])
+hoa = """HOA: v1
+States: 3
+Start: 1
+AP: 2 "p1" "p2"
+acc-name: all
+Acceptance: 0 t
+properties: state-labels explicit-labels state-acc
+--BODY--
+State: [0&1] 0 "s0"
+0
+State: [0&!1] 1 "s1"
+0 2
+State: [!0&!1] 2 "s2"
+2 0
+--END--"""
+tc.assertEqual(hoa, k.to_str('HOA'))
+
 res = []
 for e in k.out(s1):
     res.append((e.src, e.dst))