bump version to 2.10
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 05e37ee..4829b88 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,14 +5,14 @@
 
 # Based on configure.ac
 
-project(gperftools VERSION 2.9.0 LANGUAGES C CXX
+project(gperftools VERSION 2.10.0 LANGUAGES C CXX
         DESCRIPTION "Performance tools for C++"
         HOMEPAGE_URL http://code.google.com/p/gperftools/)
 
 # Update this value for every release!
-set(TCMALLOC_SO_VERSION 9.9.5)
-set(PROFILER_SO_VERSION 5.4.5)
-set(TCMALLOC_AND_PROFILER_SO_VERSION 10.4.6)
+set(TCMALLOC_SO_VERSION 9.10.5)
+set(PROFILER_SO_VERSION 5.5.5)
+set(TCMALLOC_AND_PROFILER_SO_VERSION 10.5.6)
 
 # The user can choose not to compile in the heap-profiler, the
 # heap-checker, or the cpu-profiler.  There's also the possibility
diff --git a/NEWS b/NEWS
index 44095ec..bd79386 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,33 @@
+== 30 May 2022 ==
+gperftools 2.10 is out!
+
+Here are notable changes:
+
+* Matt T. Proud contributed documentation fix to call Go programming
+  language by it's true name instead of golang.
+
+* Robert Scott contributed debugallocator feature to use readable
+  (PROT_READ) fence pages. This is activated by
+  TCMALLOC_PAGE_FENCE_READABLE environment veriable.
+
+* User stdpain contributed fix for cmake detection of libunwind.
+
+* Natale Patriciello contributed fix for OSX Monterey support.
+
+* Volodymyr Nikolaichuk contributed support for returning memory back
+  to OS by using mmap with MAP_FIXED and PROT_NONE. It is off by
+  default and enabled by preprocessor define:
+  FREE_MMAP_PROT_NONE. This should help OSes that don't support
+  Linux-style madvise MADV_DONTNEED or BSD-style MADV_FREE.
+
+* Jingyun Hua has contributed basic support for LoongArch.
+
+* Github issue #1338 of failing to build on some recent musl versions
+  has been fixed.
+
+* Github issue #1321 of failing to ship cmake bits with .tar.gz
+  archive has been fixed.
+
 == 2 March 2021 ==
 gperftools 2.9.1 is out!
 
diff --git a/configure.ac b/configure.ac
index c419d5f..65a4e24 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,12 +4,12 @@
 # make sure we're interpreted by some minimal autoconf
 AC_PREREQ([2.59])
 
-AC_INIT([gperftools],[2.9.1],[gperftools@googlegroups.com])
+AC_INIT([gperftools],[2.10],[gperftools@googlegroups.com])
 # Update this value for every release!  (A:B:C will map to foo.so.(A-C).C.B)
 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
-TCMALLOC_SO_VERSION=9:9:5
-PROFILER_SO_VERSION=5:4:5
-TCMALLOC_AND_PROFILER_SO_VERSION=10:4:6
+TCMALLOC_SO_VERSION=9:10:5
+PROFILER_SO_VERSION=5:5:5
+TCMALLOC_AND_PROFILER_SO_VERSION=10:5:6
 
 AC_SUBST(TCMALLOC_SO_VERSION)
 AC_SUBST(PROFILER_SO_VERSION)
diff --git a/src/windows/config.h b/src/windows/config.h
index bd520e4..813e24f 100644
--- a/src/windows/config.h
+++ b/src/windows/config.h
@@ -234,7 +234,7 @@
 #define PACKAGE_NAME "gperftools"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "gperftools 2.9.1"
+#define PACKAGE_STRING "gperftools 2.10"
 
 /* Define to the one symbol short name of this package. */
 #define PACKAGE_TARNAME "gperftools"
@@ -243,7 +243,7 @@
 #define PACKAGE_URL ""
 
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "2.9.1"
+#define PACKAGE_VERSION "2.10"
 
 /* How to access the PC from a struct ucontext */
 /* #undef PC_FROM_UCONTEXT */
diff --git a/src/windows/gperftools/tcmalloc.h b/src/windows/gperftools/tcmalloc.h
index 5116b29..948d062 100644
--- a/src/windows/gperftools/tcmalloc.h
+++ b/src/windows/gperftools/tcmalloc.h
@@ -43,9 +43,9 @@
 
 /* Define the version number so folks can check against it */
 #define TC_VERSION_MAJOR  2
-#define TC_VERSION_MINOR  9
-#define TC_VERSION_PATCH  ".1"
-#define TC_VERSION_STRING "gperftools 2.9.1"
+#define TC_VERSION_MINOR  10
+#define TC_VERSION_PATCH  ""
+#define TC_VERSION_STRING "gperftools 2.10"
 
 #ifndef PERFTOOLS_NOTHROW