diff --git a/winsup/cygwin/release/2.10.0 b/winsup/cygwin/release/2.10.0
index 0c6b406a1..ad7122976 100644
--- a/winsup/cygwin/release/2.10.0
+++ b/winsup/cygwin/release/2.10.0
@@ -7,12 +7,39 @@ What's new:
 
 - scanf now handles the %l[ conversion.
 
+- Improved hostprogs compatibility for cross-compiling the Linux kernel.
+New headers: <asm/bitsperlong.h>, <asm/posix_types.h>.
+
+- Built-in implementation of Stack Smashing Protection compiler feature.
+New APIs: __stack_chk_fail, __stack_chk_guard.
+
+- Built-in implementation of _FORTIFY_SOURCE guards for functions in
+<stdio.h>, <stdlib.h>, <string.h>, <strings.h>, <unistd.h>, <wchar.h>,
+<sys/poll.h>, and <sys/socket.h>.
+New APIs:  __chk_fail, __gets_chk, __memcpy_chk, __memmove_chk, __mempcpy_chk,
+__memset_chk, __snprintf_chk, __sprintf_chk, __stpcpy_chk, __stpncpy_chk,
+__strcat_chk, __strcpy_chk, __strncat_chk, __strncpy_chk, __vsnprintf_chk,
+__vsprintf_chk.
+
+- Built-in implementation of POSIX.1-2001 message catalog support.
+New APIs: catclose, catgets, catopen.  New tool: gencat.
+
 - New APIs: sigtimedwait, wmempcpy.
 
 
 What changed:
 -------------
 
+- Standard headers no longer use macros to support K&R C.
+
+- confstr(3) and getconf(1) accept LFS_CFLAGS, LFS_LDFLAGS, etc.
+
+- The __always_inline and __nonnull macros in <sys/cdefs.h> are now
+compatible with glibc.
+
+- Feature Test Macros improvements in <fcntl.h>, <limits.h>, <netdb.h>,
+<strings.h>, and <unistd.h>.
+
 
 Bug Fixes
 ---------
diff --git a/winsup/doc/new-features.xml b/winsup/doc/new-features.xml
index b3d258862..59af6efc0 100644
--- a/winsup/doc/new-features.xml
+++ b/winsup/doc/new-features.xml
@@ -17,7 +17,32 @@ scanf/wscanf now handle the POSIX %m modifier.
 </para></listitem>
 
 <listitem><para>
-- scanf now handles the %l[ conversion.
+scanf now handles the %l[ conversion.
+</para></listitem>
+
+<listitem><para>
+Improved hostprogs compatibility for cross-compiling the Linux kernel.
+New headers: &lt;asm/bitsperlong.h&gt;, &lt;asm/posix_types.h&gt;.
+</para></listitem>
+
+<listitem><para>
+Built-in implementation of Stack Smashing Protection compiler feature.
+New APIs: __stack_chk_fail, __stack_chk_guard.
+</para></listitem>
+
+<listitem><para>
+Built-in implementation of _FORTIFY_SOURCE guards for functions in
+&lt;stdio.h&gt;, &lt;stdlib.h&gt;, &lt;string.h&gt;, &lt;strings.h&gt;,
+&lt;unistd.h&gt;, &lt;wchar.h&gt;, &lt;sys/poll.h&gt;, and &lt;sys/socket.h&gt;.
+New APIs:  __chk_fail, __gets_chk, __memcpy_chk, __memmove_chk, __mempcpy_chk,
+__memset_chk, __snprintf_chk, __sprintf_chk, __stpcpy_chk, __stpncpy_chk,
+__strcat_chk, __strcpy_chk, __strncat_chk, __strncpy_chk, __vsnprintf_chk,
+__vsprintf_chk.
+</para></listitem>
+
+<listitem><para>
+Built-in implementation of POSIX.1-2001 message catalog support.
+New APIs: catclose, catgets, catopen.  New tool: gencat.
 </para></listitem>
 
 <listitem><para>
diff --git a/winsup/doc/posix.xml b/winsup/doc/posix.xml
index 2664159e1..8b4bab1b0 100644
--- a/winsup/doc/posix.xml
+++ b/winsup/doc/posix.xml
@@ -86,9 +86,9 @@ also IEEE Std 1003.1-2008 (POSIX.1-2008).</para>
     catanhf
     catanhl
     catanl
-    catclose 			(available in external "catgets" library)
-    catgets  			(available in external "catgets" library)
-    catopen  			(available in external "catgets" library)
+    catclose
+    catgets
+    catopen
     cbrt
     cbrtf
     cbrtl