Yes, you can implement update transformation classes for view from event sourced entities, value entities, and topics.
@mckeeh3 , I’m getting a 404 for those links. FYI.
I’ve submitted an issue on this. Move the “Update transformation class” subsection out from within the Creating a View from an Event Sourced Entity section, and add reference links from View Entity, Event Sourced Entity, and Topic sections to the relocated Update transformation class. The other alternative is to provide three topic-specific subsections about update transformations in each of the Vie, ESE, and Topic sections.