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Hiya
You've missed a fair bit, inc a 2.0.18.x core update and some new/updated modules.
Also, 2.3.0 has had some significant progress and is well worth a look before the Final is released.
Some cracking new themes, too, inc some rather smart admin themes.
Basically, things seem to be moving forward apace, the atmosphere is good and generally hunky dorey.
Welcome back - good to see you again