(maven) 01/01: document supported values (#11810)

[gn...@apache.org]

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gnodet pushed a commit to branch backport-11810-master
in repository https://gitbox.apache.org/repos/asf/maven.git

commit 01d171feca13c4da639aa2c9594cf56aae71e3cf
Author: Hervé Boutemy <hb...@apache.org>
AuthorDate: Fri Jun 12 15:08:49 2026 +0200

    document supported values (#11810)
    
    Co-authored-by: Guillaume Nodet <gn...@gmail.com>
    Co-authored-by: Claude Opus 4.6 <no...@anthropic.com>
---
 api/maven-api-model/src/main/mdo/maven.mdo | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/api/maven-api-model/src/main/mdo/maven.mdo b/api/maven-api-model/src/main/mdo/maven.mdo
index 74aff7785e..eb5618d9af 100644
--- a/api/maven-api-model/src/main/mdo/maven.mdo
+++ b/api/maven-api-model/src/main/mdo/maven.mdo
@@ -92,7 +92,8 @@
           <name>modelVersion</name>
           <version>4.0.0+</version>
           <required>true</required>
-          <description>Declares to which version of project descriptor this POM conforms.</description>
+          <description>Declares which version of the project descriptor this POM conforms to:
+            {@code 4.0.0} for Maven 3, {@code 4.1.0} or {@code 4.2.0} for Maven 4.</description>
           <type>String</type>
         </field>