Mika,
Starting with which # firmware requires the latest Ioni firmware?
The required version is the bundled one as listed on the download page.
Is 1.0.30 completely good to go now?
See the updates coming up in the next version.
I looked at the updates for the next version.
My question is 1.0.30 good to go as is, or should guys continue to wait for the next version?
Its good to go, if you take the deficiencies for “first install” into account. That is, the next -button does not show at start.
Ok very good, thanks! 
Time to let a few guys upgrade from 11.2