NServiceBus 7.2.1, 7.1.11, 6.5.9 - Patch releases available

Hi everyone,

We’ve just released NServiceBus 7.2.1, 7.1.11, and 6.5.9.

This patch release fixes a message loss issue when Gateway InMemory deduplication is used. 7.2.1 also contains a fix that allows C# 8 nullable reference types to be used for interface messages.

Fixed bugs

How to know if you are affected

All Gateway users that are using InMemory deduplication storage. You are not affected if you are using the InMemory storage bundled with Gateway 3.1.


When retrying failed requests to the gateway, requests are discarded with the following log statement:

"Message with id: {message-id} has already been dispatched, ignoring incoming gateway message."

Should you upgrade immediately

Upgrade immediately if you are using InMemoryPersistence as your persistence option for the gateway.

Where to get it

You can download the updated version directly from NuGet: https://www.nuget.org/packages/NServiceBus/

With thanks,
The team in Particular

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