Exchange Details API v2 is live

We've rolled out v2 of the Exchange Details endpoint. It now covers 73 exchanges with verified trading hours, pre-market and after-hours sessions, lunch breaks, early close times, and a full holiday calendar for the current year. If you've ever had to guess whether Christmas Eve is a half day or a full closure on a given exchange, this should save you the trouble.

The v1 endpoint still works and still returns real-time fields like isOpen and ActiveTickers that v2 doesn't have, so nothing breaks.