I saw the 2.7 the tag are still the same, except now is possible to use "tag-1"... anyway still "bad", is impossible still to use tag with spaces like "tag 1" :(

The 2.6 template seems not compatible...

I think i will not upgrade to this 2.7 version... i can't risk to lost my google traffic changing the template.

Plus, there are no new feature, worth the effort of upgrade, in my case.