In this 34th quarterly recap post, discover the most impactful AWS serverless launches, features, and resources from Q3 2026 that you might have missed.
In case you missed our last ICYMI, read about what happened in Q2 2026.
Amazon EventBridge
Amazon EventBridge relaunched the Custom event bus for organizations where many teams share events. A central team creates one bus, shares it across accounts with AWS Resource Access Manager, and controls who can publish and subscribe. Application teams create Subscribers in their own accounts instead of chaining forwarding rules between buses. The new bus keeps events for a retention period you choose, preserves order within a key the publisher sets, and accepts Avro, Protocol Buffers, and JSON, including CloudEvents. It runs alongside the classic bus, so adoption is incremental.
Figure 2: Shared Custom event bus with subscribers…
https://aws.amazon.com/blogs/compute/serverless-icymi-q3-2026/
