for a periodically obsessed prick you're not very good at keeping tabs. Same party I was in the last time you asked, and the time before and time before that. Though not very actively atm.
I'm just not naive enough to think the Green party are going to romp home to an overall majority at the next election, and recognise that the best hope of achieving something vaguely close to my politics is via a Corbyn led Labour party ending up in government ideally with Green, SNP and Plaid support to moderate the influence of remaining neoliberal labour MPs.
Under current rules I'd not be allowed to join Labour for 2 years anyway, so you could really save us from having to have this discussion every few months as the answer's not likely to change any time soon.