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 4.8 to 4.9

camel-management

The queueSize attribute on endpoints which are ManagedBrowseableEndpoint is changed from returning a Long value to an Integer value.

camel-jms

Added int limit as parameter to the browse method in org.apache.camel.component.jms.QueueBrowseStrategy.

camel-hashicorp-vault properties function

The syntax for retrieving a single field of a secret has been changed.

From this

{{hashicorp:secret:database/username}}

to this

{{hashicorp:secret:database#username}}

You could find more details on CAMEL-21179 issue

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