Updated documentation for removal of bigfile/VARBLOCK support.
diff --git a/doc/reference.rst b/doc/reference.rst
index d1b0b6d..d81f742 100644
--- a/doc/reference.rst
+++ b/doc/reference.rst
@@ -49,32 +49,13 @@
 
 .. index:: VARBLOCK (file format)
 
-Module: rsa.bigfile
--------------------
-
-.. warning::
-
-    The :py:mod:`rsa.bigfile` module is NOT recommended for general use, has been
-    deprecated since Python-RSA 3.4, and will be removed in a future release. It's
-    vulnerable to a number of attacks. See :ref:`bigfiles` for more information.
-
-The :py:mod:`rsa.bigfile` module contains functions for encrypting and
-decrypting files that are larger than the RSA key. See
-:ref:`bigfiles` for more information.
-
-.. autofunction:: rsa.bigfile.encrypt_bigfile
-
-.. autofunction:: rsa.bigfile.decrypt_bigfile
-
-.. _VARBLOCK:
-
 The VARBLOCK file format
 ++++++++++++++++++++++++
 
 .. warning::
 
     The VARBLOCK format is NOT recommended for general use, has been deprecated since
-    Python-RSA 3.4, and will be removed in a future release. It's vulnerable to a
+    Python-RSA 3.4, and was removed in version 4.0. It's vulnerable to a
     number of attacks. See :ref:`bigfiles` for more information.
 
 The VARBLOCK file format allows us to encrypt files that are larger
@@ -109,4 +90,3 @@
 .. autofunction:: rsa.core.encrypt_int
 
 .. autofunction:: rsa.core.decrypt_int
-