-This version of tinc relies on the GNU Multi-Precision Library
-(gmp). This library is available from your nearest GNU mirror. Please
-install this first even before trying to run configure. If you don't
-do this, configure will (hopefully) mention it to you.
+
+Security statement
+------------------
+
+In August 2000, we discovered the existence of a security hole in all versions
+of tinc up to and including 1.0pre2. This had to do with the way we exchanged
+keys. Since then, we have been working on a new authentication scheme to make
+tinc as secure as possible. The current version uses the OpenSSL library and
+uses strong authentication with RSA keys.
+
+On the 29th of December 2001, Jerome Etienne posted a security analysis of tinc
+1.0pre4. Due to a lack of sequence numbers and a message authentication code
+for each packet, an attacker could possibly disrupt certain network services or
+launch a denial of service attack by replaying intercepted packets.
+
+Cryptography is a hard thing to get right. We cannot make any
+guarantees. Time, review and feedback are the only things that can
+prove the security of any cryptographic product. If you wish to review
+tinc or give us feedback, you are stronly encouraged to do so.
+
+
+Changes to configuration file format
+------------------------------------
+
+Some configuration variables have different names now. Most notably "TapDevice"
+should be changed into "Device", and "Device" should be changed into
+"BindToDevice".
+
+
+Requirements
+------------
+
+Since 1.0pre3, we use OpenSSL for all cryptographic functions. So you
+need to install this library first; grab it from
+http://www.openssl.org/. We recommend version 0.9.5 or better. If
+this library is not installed on you system, configure will fail. The
+manual in doc/tinc.texi contains more detailed information on how to
+install this library.
+
+In order to compile tinc, you will also need autoconf, automake, GNU make, m4
+and gettext.
+
+
+Features
+--------