CIP-107 went into production yesterday.
If you use the token standard APIs and treat the prepared transaction/choice context as opaque, this should mostly be transparent for you. You may need to adjust if your integration builds CC transactions directly, exercises CC specific choices, reads OpenMiningRound, depends on AmuletRules/AmuletRules_Transfer, or parses CC specific transaction history.
This PDF shows examples: 24h Submission Delay Transaction Structure Changes.pdf (295.5 KB)