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CAMEL-23515: docs - sync camel-nats 4.18 upgrade-guide entry to main #23252

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oscerd merged 1 commit into from
May 18, 2026
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CAMEL-23515: docs - sync camel-nats 4.18 upgrade-guide entry to main #23252

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10 changes: 10 additions & 0 deletions docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_18.adoc
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Expand Up @@ -462,6 +462,16 @@ to the API specification.
All together this would make Camel behave similar for Rest DSL for both _code first_ and _contract first_ style.


=== camel-nats

The default `headerFilterStrategy` is now a new `NatsHeaderFilterStrategy` that filters headers
starting with `Camel` / `camel` (case-insensitive) in both the inbound and outbound directions,
aligning the component with the rest of the Camel component catalog (`camel-kafka`, `camel-mail`,
`camel-coap`, `camel-google-pubsub`, ...). Routes that relied on passing through these header
names from NATS messages can supply a custom `headerFilterStrategy` to restore the previous
behaviour.


=== Component deprecation

The `camel-olingo2` and `camel-olingo4` component are deprecated.
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