diff --git a/CHANGELOG b/CHANGELOG
index 95cc6ff..92e33ca 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,13 @@
+Changes since 4.0.0
+	
+Multithread support for Linux and Windows
+Fix NFS4 behavior of chmod/chown/utimes
+Add marshalling / unmarshalling of various NFSv4.1 structures (but not 4.1 support)
+PS3 support
+PS2 EE support
+Support escaped characters in the URL
+Fix MINGW build
+
 Changes since 3.0.0
 
 Fix the versioning in makerpms.sh
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e304811..4a9c5b3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.2)
 
 project(libnfs
         LANGUAGES C
-        VERSION 4.0.0)
+        VERSION 5.0.0)
 
 set(SOVERSION 11.0.0 CACHE STRING "" FORCE)
 
diff --git a/configure.ac b/configure.ac
index 0566ff9..b41dba8 100755
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ(2.50)
-AC_INIT([libnfs], [4.0.0], [ronniesahlberg@gmail.com])
+AC_INIT([libnfs], [5.0.0], [ronniesahlberg@gmail.com])
 AC_CONFIG_HEADERS([config.h])
 AM_INIT_AUTOMAKE([-Wall foreign subdir-objects])
 AC_CANONICAL_HOST
diff --git a/include/nfsc/libnfs.h b/include/nfsc/libnfs.h
index 202ff46..17d0663 100755
--- a/include/nfsc/libnfs.h
+++ b/include/nfsc/libnfs.h
@@ -43,6 +43,7 @@ extern "C" {
 #define LIBNFS_FEATURE_PAGECACHE
 #define LIBNFS_FEATURE_DEBUG
 #define LIBNFS_FEATURE_UMOUNT
+#define LIBNFS_FEATURE_MULTITHREADING
 
 #define NFS_BLKSIZE 4096
 #define NFS_PAGECACHE_DEFAULT_TTL 5
diff --git a/lib/Makefile.am b/lib/Makefile.am
index e9afedd..ed55e5e 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -26,7 +26,7 @@ libnfs_la_SOURCES = \
 	socket.c \
 	../win32/win32_compat.c
 
-SOCURRENT=13
+SOCURRENT=14
 SOREVISION=0
 SOAGE=0
 libnfs_la_LDFLAGS = -version-info $(SOCURRENT):$(SOREVISION):$(SOAGE)
diff --git a/packaging/RPM/libnfs.spec.in b/packaging/RPM/libnfs.spec.in
index f78613b..8fd483c 100644
--- a/packaging/RPM/libnfs.spec.in
+++ b/packaging/RPM/libnfs.spec.in
@@ -113,6 +113,14 @@ Utility programs for LibNFS
 %{_mandir}/man1/nfs-ls.1.gz
 
 %changelog
+* Fri Jan 28 2022 : Version 5.0.0
+- Multithread support for Linux and Windows
+- Fix NFS4 behavior of chmod/chown/utimes
+- Add marshalling / unmarshalling of various NFSv4.1 structures (but not 4.1 support)
+- PS3 support
+- PS2 EE support
+- Support escaped characters in the URL
+- Fix MINGW build
 * Wed Feb 13 2019 : Version 4.0.0
 - Fix the versioning in makerpms.sh
 - Fix some compile issues in the test programs.