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feat(core-amqp): refresh CBS tokens before they expire #7308

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feat(core-amqp): refresh CBS tokens before they expire #7308

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9d6af76
feat(core-amqp): refresh CBS tokens before they expire
j7nw4r Aug 10, 2026
4bb090a
fix(core-amqp): serialize the CBS operation on a connection
j7nw4r Aug 10, 2026
28d7bd1
style(core-amqp): format the connection tests with clang-format 11
j7nw4r Aug 10, 2026
76202ae
docs(core-amqp): note the non-transient unauthorized-access classific…
j7nw4r Aug 12, 2026
9adca2b
fix(core-amqp): let the CBS refresh thread outlive the connection
j7nw4r Aug 12, 2026
4053613
test(core-amqp): cover the token refresh state and the session hold
j7nw4r Aug 12, 2026
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3 changes: 3 additions & 0 deletions sdk/core/azure-core-amqp/CHANGELOG.md
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Expand Up @@ -10,6 +10,9 @@

### Bugs Fixed

- The connection no longer returns a cached CBS token that is at or near its expiry. It authenticates the audience again instead. [[#7254]](https://github.com/Azure/azure-sdk-for-cpp/issues/7254)
- The connection now replaces each cached CBS token before that token expires, so a client that runs for longer than one token lifetime keeps working. This refresh applies to the uAMQP transport. Without this refresh, a send that gets the `amqp:unauthorized-access` condition stops at the first attempt, because the Event Hubs producer treats that condition as not transient. [[#7254]](https://github.com/Azure/azure-sdk-for-cpp/issues/7254)

### Other Changes

## 1.0.0-beta.12 (2026-05-14)
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