abc/RON.c — the 60-bit RON base64 timestamp codec (RONNow/RONOfTime/ RONToTime, layout YYMDDhmsll, 2000–2099; see abc/RON.h). Tickets here cover the codec's decode tolerance and the monotonic stamp generation that feeds ULOG-shaped wtlog/refs runs. Fix-and-land via Issues.
RONToTime clamp LANDED abc ffc0624b / beagle a4094f7f
(bad ms can no longer crash jab status via ron._date). (B) OPEN: the stamp generator (keep_next_pup_key, jab _ulog_now) still emits ms≥1000 when >1000 rows are stamped in one second (repro 26702A0RFd).