These are all of the possible bumps for 0.12, qt and openssl excluded. I'm not advocating taking all of these, just listing them all in one place for discussion. Each is a separate commit so that the undesired ones can be easily dropped.
- boost 1.55.0 to 1.58.0: This one's been discussed and I think we're in favor of taking it.
- qrencode 3.4.3 to 3.4.4: changelog - I can't find specifically what changed, need to compare the sources.
- protobuf 2.5.0 to 2.6.1: changelog1, changelog2 - This one may be risky, might be better to just leave it alone
- ccache to 3.1.9 to 3.2.2: changelog - Looks good
- miniupnpc 1.9.20140701 to 1.9.20150609: changelog