Meteor 3.5: The Most Important Release in Years
Meteor 3.5 enhances reactivity with MongoDB Change Streams, improving performance and reducing resource consumption.
Released on June 30, 2026, Meteor 3.5 introduces MongoDB Change Streams as the default reactivity mechanism. This shift significantly enhances Meteor's real-time reactivity capabilities. Instead of relying on oplog tailing, MongoDB now watches specific collections and queries, sending only relevant changes. This change not only improves application performance but also reduces resource consumption.