Here you'll find a list of PUBLIC servers running the current beta:
1. BR Only BETA 1.1b2, provided by tequila
2. Public BETA 1.1b2, provided by tequila
You may suggest here new parameters or you can also take online another beta server and announce it here.
In case you want to start a new beta dedicated server, don't forget to tag its name with "BETA" and don't forget to update it as soon as new engine is released. Then announce your server here so we can remind you to update the server next time
Edition: Updated after v1.1b2 beta release