prominently note our py2.6 and openssl 0.9.8/1.0.0 deprecations
diff --git a/docs/installation.rst b/docs/installation.rst
index 16c42d2..a98501f 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -21,6 +21,10 @@
* x86-64 Debian Wheezy (7.x), Jessie (8.x), and Debian Sid (unstable)
* 32-bit and 64-bit Python on 64-bit Windows Server 2012
+.. warning::
+ Python 2.6 is no longer supported by the Python core team. A future version
+ of cryptography will drop support for this version.
+
We test compiling with ``clang`` as well as ``gcc`` and use the following
OpenSSL releases:
@@ -33,6 +37,11 @@
* ``OpenSSL 1.0.1f``
* ``OpenSSL 1.0.2-latest``
+.. warning::
+ OpenSSL versions 0.9.8 and 1.0.0 are no longer supported by the OpenSSL
+ project. A future version of cryptography will drop support for these
+ releases.
+
On Windows
----------