Read the whole thing here.
https://store.steampowered.com/news/...4087?l=english

This is just the part about to official servers going offline:
This also impacted our decision to sunset the ASE Official Network offline on August 31st, shortly before the ASA launch. Despite ASE Officials representing the minority of players on ARK, it’s an invested and passionate group with attachments to their bases, tames, and characters, and seeing that go away can’t be easy. While we know it’s not the same, we hope making the saves available for unofficial use helps diminish the loss. Our reasoning behind the decision is that those servers are essentially based on old technology and require significant development resources and time for our teams to operate & maintain. In some cases, the issues aren’t as easily solvable without an overall upgrade. Additionally, we know that those resources could be better utilized on fundamentally new technology to further enhance the overall game experience for all players.

ASE will still be available to play for those who choose to; that includes multiplayer through unofficial/player-hosted sessions, the endless amount of mods on the Steam workshop, and all the game content as you currently know it. All of that is going to remain, but after 8 years of development, we have to make the difficult decision of sunsetting ASE and the Official Network in order to provide that truly long-term and evergreen version of the game through ARK: Survival Ascended. We’ll be sending off ASE with one final content update for our 8th anniversary this June, releasing the fan-elected creature: Rhyniognatha! (Keep an eye out next week for its Dossier)