Which version of LW are you using?
Is it an update window or an upgrade to pro window?

If using LW 5 no options at all except for being notified of betas.
For LW 4, there's options to only be notified of major updates, etc. But since LW 4 is old version, it will still show now anyway. That's in your Tools -> Options.
Present official version is 5.1.4, though there is 5.2.x beta versions available.