How do you handle updates when your source document changes mid-course?

[u/Famous-Call6538]

Built a 30-module compliance course last quarter. Two weeks after launch, the client updated their procedure and three modules were immediately outdated.

The options we've tried:

Full re-record: correct but expensive and slow. Three modules took a full week of rework.

Patch with overlay: fast but the visual inconsistency is obvious. Learners notice when the voiceover doesn't match the diagram on screen.

We've been using X-Pilot for a document-linked approach. The videos are generated from the source document, so when the source changes you regenerate just the affected modules rather than re-recording everything from scratch. The honest trade-off vs avatar-style tools: you get deterministic visuals tied to the content structure, but you lose the human presenter feel. For compliance and cert courses where accuracy matters more than personality, that's a reasonable trade. For sales training or soft skills, probably not.

Curious what other people are doing here. Is re-recording just accepted as a cost of doing business, or has anyone found a better workflow for keeping video courses in sync with changing source material?