Update version of Gradle built with

[JLLeitschuh]

You can update the version of gradle that is used to build this project but still run the tests with the tooling API to test version 2.6.
This has been deprecated but will still be supported in 4.3
https://docs.gradle.org/current/release-notes.html#deprecations

Is there a reason why this project is still built with 2.6? Can we upgrade? Will we see a benefit (checking forward compatibility would be a good use case)?

[nedtwigg]

It's built with 2.14.1, not 2.6. Probably the build will be faster with a newer version, but we'll have to rely on testing to make sure it still works with the older versions, rather than compile-time checks.

I'd like to maintain compat with 2.14+. I've got some projects stuck on 2.14 indefinitely because in 3.x + any change to buildSrc causes a full rebuild.

I'd be happy to merge an update to 4.3 that includes testing against 2.14, but I don't care about this enough to do it.