What it is: We have improved the time required to sync a new node in a new region by up to 350%, leveraging a data snapshot from a node in a different region. This functionality is used when you add new nodes to a multi-region Atlas cluster, or when MongoDB Atlas restores impaired nodes. Who it’s for: This feature is for customers who leverage multi-region MongoDB Atlas clusters on AWS, particularly in the General or Low-CPU Dedicated tiers, to run nodes simultaneously across regions for resilience or low-latency purposes. Why it matters: With this functionality, users can reliably add new nodes for horizontal scalability and minimize impact to availability faster, no matter the region. How to get started: This functionality is enabled for any new multi-region clusters on AWS created after Dec 1, 2025. Rollout to existing multi-region clusters on AWS will begin starting Dec 1, 2025.