Bump library version numbers

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
diff --git a/doxygen/input/doc_mainpage.h b/doxygen/input/doc_mainpage.h
index e640c7b..ff3af46 100644
--- a/doxygen/input/doc_mainpage.h
+++ b/doxygen/input/doc_mainpage.h
@@ -49,7 +49,7 @@
  */
 
 /**
- * @mainpage mbed TLS v2.16.10 source code documentation
+ * @mainpage mbed TLS v2.16.11 source code documentation
  *
  * This documentation describes the internal structure of mbed TLS.  It was
  * automatically generated from specially formatted comment blocks in