There may not have been much to tell until it actually started, which was one day before the start of this month (modulo time zones, it was held in UTC+04).

It’s an annual thing apparently (except during the height of the pandemic) and this was the 28th time, hence the “28” in the name. Presumably they’ll hold COP29 next year, and now you’ve heard of that one about a year beforehand! 😛