[PHP-NOTES] note 130400 added to function.version-compare

While `+` is typically used to append metadata that are not supposed to be accounted for version comparison, the PHP version_compare function will actually consider that it decreases the version (by less than the least significant number) so:

```
version_compare('1.0.0+something', '1.0.0', '>=')
```

will return `false`
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Manual Page -- https://php.net/manual/en/function.version-compare.php
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