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.

Upgrading Camel 4.10 to 4.11

file based components

The file based component such as camel-file, camel-ftp, camel-smb, and camel-azure-files has been improved to allow optimized dynamic poll when using dynamic fileName header.

This change means that there is a new DynamicPollingConsumer API the consumer implements. And as such some APIs inside these components has been changed.

This will only affect if you have built your own custom Camel component on top of camel-file. And if so, your custom code may need to be changed slightly as well.

camel-ftp

The file name header Exchange.FILE_NAME now includes the relative path such as subdir/hello.txt when using recursive=true, to be similar to how camel-file component behaves.

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