Which github branch

[Chris Colman]

I'm trying to work out which github branch to choose to stay up to date
with the latest 1.6.x code.
 
For wicket 1.5 I've just stuck with the 1.5.x branch and that worked
well. There doesn't seem to be a 1.6.x - is this because 1.6 is the
'trunk' (in SVN speak).
 
Wicket github has both a 'master' & 'trunk'. Which one should I choose?
(or is there something else for 'latest 1.6.x code'?)
 
Yours sincerely,
 
Chris Colman