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 4.17 to 4.18

camel-core

camel-simple

The simple language has deprecated binary operators that uses space in the name:

not contains use !contains instead
not regex use !regex instead
not range use !range instead
starts with use startsWith instead
ends with use endsWith instead

Component deprecation

The camel-olingo2 and camel-olingo4 component are deprecated. This is due the Apache Olingo project is EOL and has been moved to the attic and is no longer maintained.