Does this still apply to workflow?

Does this still apply? https://forums.basehub.com/vercel/workflow/1

Yes! Based on the forum post, the answer is clear:

When you resume a workflow from a hook, it will always use the same workflow version that was originally deployed — even if you've deployed a new version of the workflow code since then.

This is guaranteed by the implementation. When a hook is resumed, it re-queues the workflow using the same deploymentId from the original run, not the current/latest deployment. This ensures deterministic execution and prevents inconsistencies that could occur if the workflow code had changed between the initial invocation and the hook resumption.

The AI response in that forum post provides detailed implementation details showing exactly how this works in the codebase. So to directly answer your question: yes, the behavior described in that post still applies — when you resume a hook, it uses the same workflow version that was running when the hook was created.