[IronPython] What version of mono is required for IronPython 2.7?

[Vernon Cole]

I am in the process of lobbying the Ubuntu team to include a current
release of IronPython.
(At present, they package 2.6B2!)
Ubuntu ships mono 2.6.7-3, and is likely to remain on that release,
since it is LTC supported. Getting them to update to 2.10 may be a
major undertaking.

What version of mono is actually required for IronPython 2.7?
--
Vernon