diff --git a/CMakeLists.txt b/CMakeLists.txt
index dbbf797..1ca9d8f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,7 +15,7 @@
 #   RelWithDebInfo : Release build with Debug Info
 #   MinSizeRel     : Release Min Size build
 IF(NOT CMAKE_BUILD_TYPE)
-  SET(CMAKE_BUILD_TYPE "Debug" CACHE STRING "Build Type" FORCE)
+  SET(CMAKE_BUILD_TYPE "Release" CACHE STRING "Build Type" FORCE)
 ENDIF(NOT CMAKE_BUILD_TYPE)
 # Set a value type to properly display CMAKE_BUILD_TYPE on GUI if the
 # value type is "UNINITIALIZED".
diff --git a/Makefile.am b/Makefile.am
index a699dc5..f22a918 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -23,7 +23,7 @@
 DISTCHECK_CONFIGURE_FLAGS = --enable-bsdtar --enable-bsdcpio
 # The next line is commented out by default in shipping libarchive releases.
 # It is uncommented by default in trunk.
-DEV_CFLAGS=-Werror -Wextra -Wunused -Wshadow -Wmissing-prototypes -Wcast-qual -g
+# DEV_CFLAGS=-Werror -Wextra -Wunused -Wshadow -Wmissing-prototypes -Wcast-qual -g
 AM_CFLAGS=$(DEV_CFLAGS)
 PLATFORMCPPFLAGS = @PLATFORMCPPFLAGS@
 AM_CPPFLAGS=$(PLATFORMCPPFLAGS)
diff --git a/NEWS b/NEWS
index 907ab67..281c176 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,6 @@
+Feb 26, 2017: libarchive 3.3.1 released
+    Security & Feature release
+
 Feb 19, 2017: libarchive 3.3.0 released
     Security & Feature release
 
diff --git a/build/version b/build/version
index 3cddc6c..ef83457 100644
--- a/build/version
+++ b/build/version
@@ -1 +1 @@
-3003001dev
+3003001
diff --git a/configure.ac b/configure.ac
index b29917e..3a8ac6a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@
 dnl In particular, this allows the version macro to be used in AC_INIT
 
 dnl These first two version numbers are updated automatically on each release.
-m4_define([LIBARCHIVE_VERSION_S],[3.3.1dev])
+m4_define([LIBARCHIVE_VERSION_S],[3.3.1])
 m4_define([LIBARCHIVE_VERSION_N],[3003001])
 
 dnl bsdtar and bsdcpio versioning tracks libarchive
diff --git a/libarchive/archive.h b/libarchive/archive.h
index e74be4d..d400735 100644
--- a/libarchive/archive.h
+++ b/libarchive/archive.h
@@ -155,7 +155,7 @@
 /*
  * Textual name/version of the library, useful for version displays.
  */
-#define	ARCHIVE_VERSION_ONLY_STRING "3.3.1dev"
+#define	ARCHIVE_VERSION_ONLY_STRING "3.3.1"
 #define	ARCHIVE_VERSION_STRING "libarchive " ARCHIVE_VERSION_ONLY_STRING
 __LA_DECL const char *	archive_version_string(void);