[SIESTA-L] new version

[fatemeh ghorbani]

Hi everyone,
I worked with siesta-2.0.2 six years ago and now I want to start working
again. I have some questions about it, please help me.
first, should I work with new version i.e. ? or I can use siesta-4.0 ?
secondly, how can I install it? I've tried a lot but I can't.
Thanks for helping,
Best regards,
Fatemeh