I read the article, the letter and the lawsuit referenced. The letter makes a rather vague reference with "we have discontinued certain older versions of Creative Cloud applications" but doesn't elaborate on what those applications are . In the example letter it referred to the application Animate. The Creative Cloud umbrella contains a lot of applications other than Lr & Ps. It's also vague as to if these "other" applications are on a monthly subscription like Lr or Ps, or if they were purchase to own a License. I suspect it was the latter, as the lawsuit with Dolby concerns their royalty rights under contractual obligations with Adobe on these "other" applications. Under the terms of the month to month on both Lr and Ps, there is no discontinued version, because it's updated throughout the lease period, and renews annually. I'm sure there's probably wording in the EULA that they could sue to stop you using, but that would be a nightmare for Adobe. The letter specifically says "you may be at risk for claims by THIRD PARTIES", I read that to mean Dolby, not Adobe.