I have made a minor update to the MaraDNS snapshot today: I fixed the recurse_delegation test to give accurate test results. Currently, both 1.2 and 1.3 always, when both subdelegating and acting as a recursive resolver, give out the delegation records when asked for a name in a subdelegated domain. This is OK in 1.2; one should not have the same DNS server both subdelegating domains and performing recursion. This is a bug in 1.3; 1.3 should let you choose what MaraDNS does in this circumstance.
I will fix the 1.3 bug later on this week, and should release 1.2.12.07 Friday.
MaraDNS snapshot download link