NServiceBus 6.4.3 and 6.3.9 - Patch releases available

Hi everyone,

We’ve just released NServiceBus 6.4.3 and 6.3.9.

Fixed bugs

  • #5082 ObjectDisposedException when trying to load saga finder

How to know if you are affected

You are affected if you are using sagas. The higher the concurrency setting on an endpoint, the more likely you will be exposed to this bug.


SagaPersistenceBehavior might throw an ObjectDisposedException when loading a saga finder under extremely high throughput. When messages are affected, they will go through unnecessary Immediate and/or Delayed Retries. As a result, there is no saga data corruption that can occur.

Should you upgrade immediately

All affected users should upgrade immediately.

Where to get it

You can download the updated version and see the full release notes here:

With thanks,

The team in Particular

Please read our release policy for more details.