Which Acrobat version other than the newest still receives Adobe support?

Report · Apr 21, 2016

We recently bought Adobe X Standard and come to find that the product is no longer supported by Adobe. Which Acrobat versions does Adobe still support?

Report · Apr 22, 2016

Adobe stop selling the old version immediately the new version is available. Support seems to last 5 years from release. 10.0 is ancient by the standards of software, released in 2010. 11.0 (XI) was released in 2012, so we can expect it to be supported until 2017 (next year); Adobe do not sell it. The current version is DC.

DC is available in a subscription model, which includes updates. I'd recommend this for those concerned with support.