return FALSE; $r = well_tag_thread__update(array('id' => $id), $update); return $r; } function well_tag_thread_find($tagid, $page, $pagesize) { $arr = well_tag_thread__find(array('tagid' => $tagid), array('id' => -1), $page, $pagesize); return $arr; } function well_tag_thread_find_by_tid($tid, $page, $pagesize) { $arr = well_tag_thread__find(array('tid' => $tid), array(), $page, $pagesize); return $arr; } ?>Main differences between Maven 3 and 4 - Stack Overflow

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    Main differences between Maven 3 and 4 - Stack Overflow

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    Now that there is release candidate 2 of Maven 4.0.0 and things become more stable, I would like to know:

    What are the main differences between Maven 3.x and 4.0.0 for Maven users (and Maven plugin developers)?

    I tried to have a look at release notes and the Maven homepage, but I am a bit overwhelmed. A lot information is about the internal structure of Maven, and there is a huge number of issues in the issue tracker that are resolved, but I did find any good information that summarizes the main improvements and breaking changes.

    Now that there is release candidate 2 of Maven 4.0.0 and things become more stable, I would like to know:

    What are the main differences between Maven 3.x and 4.0.0 for Maven users (and Maven plugin developers)?

    I tried to have a look at release notes and the Maven homepage, but I am a bit overwhelmed. A lot information is about the internal structure of Maven, and there is a huge number of issues in the issue tracker that are resolved, but I did find any good information that summarizes the main improvements and breaking changes.

    • maven
    • maven-3
    • maven-4
    Share Improve this question asked Jan 31 at 16:09 J Fabian MeierJ Fabian Meier 35.9k11 gold badges85 silver badges171 bronze badges 4
    • At the moment there are some PR open to do some documentation github/apache/maven-site/pull/598 for example... not ready yet... – khmarbaise Commented Jan 31 at 17:09
    • @khmarbaise But maybe you could give a short summary? – J Fabian Meier Commented Feb 1 at 9:16
    • 1 This presentation (shared in maven dev mailing list) has some high level information gnodet.github.io/maven4-presentation – Raghuram Commented Feb 2 at 16:12
    • 1 maven.apache./whatsnewinmaven4.html – khmarbaise Commented Mar 3 at 19:05
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    Main points are:

    1. Separation of build POM and consumer POM. The build POM gets a new model version, while the consumer POM, generated during the build, still uses 4.0.0
    2. Better handling of modules (now called subprojects), less duplication of version numbers.
    3. A new packaging type bom for Bills of Materials.
    4. Improved lifecycle which allows to handle things happening before and after certain phases.
    5. A Maven shell that allows faster execution of Maven commands.

    See also https://maven.apache./whatsnewinmaven4.html, thanks to Karl-Heinz Marbaise for the link.

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