Heads up: breaking change to leaderboards API
Lawton Campbell.8517:
The original incarnation of /v2/pvp/seasons/:season/leaderboards/:board had a fairly serious design issue wherein the region could not be selected<"https://github.com/arenanet/api-cdi/pull/428">fixed in a backwards-compatible way (so that old requests technically still work), but the old request format is now deprecated.
Going forward, applications should use /v2/pvp/seasons/:season/leaderboards/:board/:region e.g.
In two weeks, on Jan 25 2017 I’m going to remove the backwards-compat such that omitting the region will just return a list of regions to bring the endpoint in line with the rest.
Sorry about the mess :<