Upgrade pip in EPEL

I'm thinking about upgrading pip in EPEL, but I don't really know about any backwards compatibility ramifications. Can anyone enlighten me about possible issues? -- Orion Poplawski Technical Manager 303-415-9701 x222 NWRA, Boulder/CoRA Office FAX: 303-415-9702 3380 Mitchell Lane orion(a)nwra.com Boulder, CO 80301 http://www.nwra.com