Plugin depends on the deprecated Maven 2.x compatibility layer, which may not be supported in Maven 4.x

[kohlschuetter]

Checking my project for plugin updates with

mvn versions:display-plugin-updates -U  -Dmaven.plugin.validation=verbose

shows me that nar-maven-plugin is the only plugin that still depends on the deprecated Maven 2.x compatibility layer, which may not be supported in Maven 4.x.

[WARNING] Plugin validation issues were detected in 1 plugin(s)
[WARNING] 
[WARNING]  * com.github.maven-nar:nar-maven-plugin:3.10.1
[WARNING]   Plugin issue(s):
[WARNING]    * Plugin depends on the deprecated Maven 2.x compatibility layer, which may not be supported in Maven 4.x
[WARNING] 

Is the project still active? When can we expect a change that fixes this issue?