[2.7] Add version change for OpenSSL 1.1.0 compatibility (GH-7541)

diff --git a/Doc/library/ssl.rst b/Doc/library/ssl.rst
index a612e6e..fe50668 100644
--- a/Doc/library/ssl.rst
+++ b/Doc/library/ssl.rst
@@ -24,6 +24,9 @@
 library. It is available on all modern Unix systems, Windows, Mac OS X, and
 probably additional platforms, as long as OpenSSL is installed on that platform.
 
+.. versionchanged:: 2.7.13
+   Updated to support linking with OpenSSL 1.1.0
+
 .. note::
 
    Some behavior may be platform dependent, since calls are made to the