diff --git a/Makefile.lite b/Makefile.lite
index 078298b..ccda5d1 100644
--- a/Makefile.lite
+++ b/Makefile.lite
@@ -39,7 +39,7 @@ all: pkgconf-lite
 libpkgconf/config.h:
 	@echo '#define PACKAGE_NAME "pkgconf-lite"' >> $@
 	@echo '#define PACKAGE_BUGREPORT "https://git.dereferenced.org/pkgconf/pkgconf/issues"' >> $@
-	@echo '#define PACKAGE_VERSION "2.1.1"' >> $@
+	@echo '#define PACKAGE_VERSION "2.2.0"' >> $@
 	@echo '#define PACKAGE PACKAGE_NAME " " PACKAGE_VERSION' >> $@
 	@echo '#define HAVE_STRLCPY' >> $@
 	@echo '#define HAVE_STRLCAT' >> $@
diff --git a/NEWS b/NEWS
index 528c023..c26878a 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,24 @@
 Changes from previous version of pkgconf
 ========================================
 
+Changes from 2.1.1 to 2.2.0:
+----------------------------
+
+* libpkgconf SOVERSION is now 5.
+
+* Significant solver rework to flatten both requires and requires.private
+  dependencies in a single pass.  Improves performance slightly and ensures
+  proper dependency order.
+  Patches by Kai Pastor.
+
+* Improve `--digraph` output to reflect more of the solver's state in the
+  rendered dependency graph.
+  Patches by Kai Pastor.
+
+* Do not reference the graph root by name when presenting error messages about
+  directly requested dependency nodes.
+  Patch by Kai Pastor.
+
 Changes from 2.1.0 to 2.1.1:
 ----------------------------
 
diff --git a/configure.ac b/configure.ac
index 4595ac9..3588f2b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -12,7 +12,7 @@ dnl implied.  In no event shall the authors be liable for any damages arising
 dnl from the use of this software.
 
 AC_PREREQ([2.71])
-AC_INIT([pkgconf],[2.1.1],[https://github.com/pkgconf/pkgconf/issues/new])
+AC_INIT([pkgconf],[2.2.0],[https://github.com/pkgconf/pkgconf/issues/new])
 AC_CONFIG_SRCDIR([cli/main.c])
 AC_CONFIG_MACRO_DIR([m4])
 AX_CHECK_COMPILE_FLAG([-Wall], [CFLAGS="$CFLAGS -Wall"])
diff --git a/libpkgconf/libpkgconf.h b/libpkgconf/libpkgconf.h
index 01cd845..ef1cbcb 100644
--- a/libpkgconf/libpkgconf.h
+++ b/libpkgconf/libpkgconf.h
@@ -81,8 +81,8 @@ typedef struct pkgconf_queue_ pkgconf_queue_t;
 #define PKGCONF_FOREACH_LIST_ENTRY_REVERSE(tail, value) \
 	for ((value) = (tail); (value) != NULL; (value) = (value)->prev)
 
-#define LIBPKGCONF_VERSION	20101
-#define LIBPKGCONF_VERSION_STR	"2.1.1"
+#define LIBPKGCONF_VERSION	20200
+#define LIBPKGCONF_VERSION_STR	"2.2.0"
 
 struct pkgconf_queue_ {
 	pkgconf_node_t iter;
diff --git a/meson.build b/meson.build
index 8d168f7..53c585f 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('pkgconf', 'c',
-  version : '2.1.1',
+  version : '2.2.0',
   license : 'ISC',
   meson_version : '>=0.49',
   default_options : ['c_std=c99'],