New versions did not offer any real upgrades making the updates ridiculous. The newest version, which I unfortunately have, has a retarded opening screen that makes bootup time slower. So much for improvements, right?> :P
I think the best one to use is 1.5.0 or 1.6.0 but DO NOT ever use 1.6.1
I think *some* emus run only on 1.6.0 but I don't remember 100%.
Try to stick to 1.5.0 and if something happens not to work with it just go 1.6.0
Links to both: