KathyM wrote:
The fourth meaning here:
https://www.focloir.ie/ga/dictionary/ei/catch+up seems to be what you're looking for. I don't know how idiomatic it is because I've never heard it said (but my experience is limited.)
4 (v + adv) talk and find out news INTRANSITIVE
we spent some time catching up chaitheamar seal ag fáil amach cén scéala is déanaí againn
"Chaitheamar seal ag fáil amach cén scéala is déanaí againn"That is the meaning of catching up [on the latest news]. It's a bit wordy, but then Irish often is a lot more wordy than English. I don't think there is one single word in Irish that has that exact meaning.