diff --git a/README.md b/README.md
index 7aafaac..08cab05 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ OpenVPN [road warrior](http://en.wikipedia.org/wiki/Road_warrior_%28computing%29
 
 This script will let you setup your own VPN server in no more than a minute, even if you haven't used OpenVPN before. It isn't bulletproof but has been designed to be as unobtrusive and universal as possible.
 
-### Fork
+##Fork
 This fork includes :
 - no logs
 - TLS 1.2 only
@@ -12,21 +12,48 @@ This fork includes :
 - [FDN's DNS Servers](http://www.fdn.fr/actions/dns/)
 - Every feature of the [original script](https://github.com/Nyr/openvpn-install) (I check periodically to sync the latest commits from source)
 
-###Installation
+##Installation
+
+To check your OpenVPN version, use `openvpn --version`
+
+If your server **and** your client have OpenVPN 2.3.x or higher, use *latest*. If your server **or** your client have OpenVPN 2.2.x or lower, use *legacy*.
+
+#Latest (OpenVPN 2.3.x)
+
+It will work for :
+- Debian 8
+- Ubuntu 14.04 LTS
+- Ubuntu 15.10
+
 Run the script and follow the assistant:
 
 ```
-wget https://raw.githubusercontent.com/Angristan/OpenVPN-install-nyr/master/openvpn-install.sh
+wget --no-check-certificate https://raw.githubusercontent.com/Angristan/OpenVPN-install-nyr/master/openvpn-install.sh
 chmod +x openvpn-install.sh
 ./openvpn-install.sh
 ```
 
+#Legacy (OpenVPN 2.2.x)
+
+It's the same script as *latest*, but with older TLS version and cipher suite, to support older devices.
+It will work for :
+- Debian 7
+- Ubuntu 12.04 LTS
+
+Run the script and follow the assistant:
+
+```
+wget --no-check-certificate https://raw.githubusercontent.com/Angristan/OpenVPN-install-nyr/master/openvpn-install-legacy.sh
+chmod +x openvpn-install-legacy.sh
+./openvpn-install-legacy.sh
+```
+
 Once it ends, you can run it again to add more users, remove some of them or even completely uninstall OpenVPN.
 
 You can get a little VPS for just 1.5€/month at [PulseHeberg](http://manager.pulseheberg.com/aff.php?aff=1204).
 
 ## Licence
 
-Thanks to [Nyr](https://github.com/Nyr/openvpn-install)
+Based on the work of [Nyr](https://github.com/Nyr/openvpn-install)
 
 [MIT Licence](https://raw.githubusercontent.com/Angristan/openvpn-install-nyr/master/LICENSE)