Message Delta Compression reduces your bandwidth costs, improves end-user latencies, and simplifies development by sending only the changes between messages each time there’s an update, instead of resending the entire message.

Different protocols serve different purposes better than others. That’s why, as of today, anyone building on Ably can seamlessly stream data over the Server-Sent Events (SSE) protocol using the Ably Adapter.

Idempotent publishing is now available across all Ably 1.1 client library SDKs. This introduces publish-once guarantees, removing duplication of messages.

Better manage your Ably account limits, view detailed statistics of your usage, predict future usage requirements, and better manage your billing.