The first edition (finished in 2012), had just NumberFormat, Collator and basic DateTimeFormat.
Since then, we added Locale, PluralRules, ListFormat, RelativeTimeFormat, DisplayNames, two new revisions of NumberFormat, two major additions to DateTimeFormat, and we're now adding Segmenter, LocaleInfo, CalendarInfo and working on MessageFormat 2.0.
There have been 9 revisions of ECMA-402 since 2012. We are, in fact, following TC-39 on a yearly cadence of releases.
You can see the history of editions here: https://www.ecma-international.org/publications-and-standard...
The first edition (finished in 2012), had just NumberFormat, Collator and basic DateTimeFormat.
Since then, we added Locale, PluralRules, ListFormat, RelativeTimeFormat, DisplayNames, two new revisions of NumberFormat, two major additions to DateTimeFormat, and we're now adding Segmenter, LocaleInfo, CalendarInfo and working on MessageFormat 2.0.
Here's a very incomplete list of finished proposals that have been merged into the standard and implemented in browsers - https://github.com/tc39/proposals/blob/master/ecma402/finish...
I may or may not be involved in majority of them! :)