THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
...
- maven-v3_0_0.xsd
- maven-v4_0_0.xsd
- maven-navigation-1.0.xsd <--- naming conventions? what module does this come from?
- settings-v1_0_0.xsd
There are other schemas and older versions, with the 'original' filenames, in /www/maven.apache.org/xsd/.