https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107954
--- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- Editorial review before the CD ballot slipped the schedule. Second-round editorial review after a huge number of changes in the editorial review slipped the schedule. Getting a final draft with all the changes into the CD ballot process slipped the schedule. The January meeting is two weeks later than originally planned because of the schedule delays. I just sent 206 comments on the CD to BSI for submission to ISO as the UK comments and if other NBs have similar numbers of comments, (a) it wouldn't surprise me if there's difficulty in getting through all of them in a single week's meeting (even if we find a way not to need to discuss all the editorial comments individually in the meeting) and (b) there could easily be further delays getting all the changes into the working draft and reviewed for being correctly applied. So despite the 56-day "ISO editing" period on the schedule before the DIS ballot (which may be meant to deal with all the editorial issues ISO comes up with at the last minute), it's entirely plausible there could be schedule slip for the DIS ballot - even supposing we don't need any extra ballot stages (CD2 or FDIS). So while it's possible that the new standard will be published in 2023 - or with a __STDC_VERSION__ value from 2023 even if published in 2024 - there is plenty of scope for the schedule to slip given the amount of work that still needs to be done on the draft.