Re: Why mvnup is not a plugin of Maven 4.

Hi Hantsy,
The mavenup is an Upgrade-Tool to upgrade projects from Maven 3 to Maven 4 (with either Maven 3 compatibility mode or including Maven 4 only features). 
So it‘s no plugin to use in a regular build, but a tool helping people to migrate. 

Sadly I did not find time to write a guide for it and put it on the website, but it is high on my list. 

Matthias


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> Am 01.07.2025 um 08:37 schrieb hantsy bai <[email protected]>:
> 
> I have just tried Maven 4.0, and found that there are several commands
> provided in the mvn dist, but I am sure the purpose of Maven.
> 
> When I used Arquillian and Maven 4 in projects, I encountered some warnings
> in the Arquillian archives for Maven POMs when running Arquillian tests.
> However, when I clone the arquillian-core repository
> https://github.com/arquillian/arquillian-core/, and attempt to run `mvnup
> check` and `mvnup apply`, there are no updates.
> 
> 1. I do not know the purpose of mvnup?
> 2. Why is it not a built-in plugin in Maven 4 that provides a 'check' and
> 'apply' goal?
> 
> Ideally, there is a built-in upgrade plugin/framework that refreshes the
> Maven plugin configuration to the latest version when executing the apply
> goal, and every broken upgrade of a particular Maven plugin provides
> OpenWrite-like scripts for the upgrade execution.
> 
> 
> ---
> 
> Regards,
> 
> *Hantsy Bai*
> 
> Self-employed consultant, fullstack developer, agile coach,
> freelancer/remote worker
> 
> GitHub: https://github.com/hantsy
> 
> Twitter: https://twitter.com/@hantsy
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