Update for 2.26 release

ChangeLog

 2017-08-02  Siddhesh Poyarekar  <siddhesh@sourceware.org>
 
+	* version.h (RELEASE): Set to "stable"
+	(VERSION): Set to 2.26.
+	* include/features.h (__GLIBC_MINOR__): Set to 26.
+
 	* manual/contrib.texi: Update contributors.
 	* manual/install.texi: Update latest tested versions of gcc and
 	binutils.

include/features.h

@@ -412,7 +412,7 @@
 /* Major and minor version number of the GNU C library package.  Use
    these macros to test for features in specific releases.  */
 #define	__GLIBC__	2
-#define	__GLIBC_MINOR__	25
+#define	__GLIBC_MINOR__	26
 
 #define __GLIBC_PREREQ(maj, min) \
 	((__GLIBC__ << 16) + __GLIBC_MINOR__ >= ((maj) << 16) + (min))

version.h

 /* This file just defines the current version number of libc.  */
 
-#define RELEASE "development"
-#define VERSION "2.25.90"
+#define RELEASE "stable"
+#define VERSION "2.26"