# 5.2 Version Since Phing 2.4.2 it is possible to include a `phingVersion` attribute in the `<project>` tag. This attribute allows you to define the minimum Phing version required to execute a build file, in order to prevent compatibility issues. ``` <?xml version="1.0"?> <project name="test" phingVersion="2.4.2" > <!-- Everything else here --> <project> ```