Thanks for posting your question!

Notification of years 2009-2012 being decomissioned was first sent out by email on 8/29/2018, with follow up emails sent 9/26/2018 and 11/1/2018. The communicated cutoff date was 11/15/2018 for retrieval of returns. The servers were officially shut down 12/17/2018.

This article that was posted in August of last year also includes more information: https://accountants-community.intuit.com/articles/1745873-faq-for-decomission-of-prior-year-tax-retu...