Apache Camel 4.x Upgrade Guide
This document is for helping you upgrade your Apache Camel application from Camel 4.x to 4.y. For example, if you are upgrading Camel 4.0 to 4.2, then you should follow the guides from both 4.0 to 4.1 and 4.1 to 4.2.
| The Camel Upgrade Recipes project provides automated assistance for some common migration tasks. Note that manual migration is still required. See the documentation page for details. |
Upgrading Camel 4.18 to 4.19
camel-core
The WireTap EIP has removed the pattern option from its model (not in use) as wiretap always uses InOnly pattern.
Removed 2 deprecated methods in Java DSL for throttler EIP.
camel-yaml-io / camel-xml-io
In the YAML DSL we have renamed routePolicy to routePolicyRef on the route node, as that is the correct name.
When dumping routes in YAML or XML format via camel-yaml-io or camel-xml-io then the structure of routes and all the EIP options now respect the intended order in the model.
For example id is always first, and the following attributes are ordered so the most commonly used at in the top. EIPs such as circuitBreaker now has onFallback last.
This order is also the same order that UI builders like Camel Karavan and Kaoto do as well.