This from Rebecca and the Warframe website . . .

Hello Tenno!

This evening we have submitted a build to cert to with a handful of changes and potential improvements to Warframe! Also in this build is the free Dex Furis Anniversary Weapon and the Proto Armour Anniversary Skin! This build will allow users to select their Region as well as potentially improve networking issues.

We will let you know when we hear about the status of the build.