go to post Alex Bravo · Aug 17, 2020 Agree, this is a great article and summary of features. Thank you Yuri! 10 Reply go to post Alex Bravo · Apr 7, 2016 My question was not well stated. I apologize. I was trying to use the $toJSON() method on a %Persistent class and was getting an error. However, the version of Caché is on 2016.1.0. I have since learned that this is available on 2016.2 and forward.Thank you Stefan. 00 Reply go to post Alex Bravo · Apr 6, 2016 Great article! Thank you for publishing.Is multiple inheritance for the new %Object and %Array classes supported for existing classes that use %Library.Persistent?Thanks, 00 Reply Followers:Alex has no followers yet.Following:Alex has not followed anybody yet.Global Masters badges:Alex has no Global Masters badges yet.