In case you missed it, Internet Systems Consortium (ISC) released version 9.4.2 of their BIND DNS server yesterday. It is recommended that all you BIND DNS operators out there upgrade your software, as BIND 9.4.2 over 90 fixes! Here's a graphical representation of the types of fixes included in BIND 9.4.2.

BIND 9.4.2 Fix Distribution

By the way, I generated that chart image in a few minutes with Google Docs.

One final note, ISC warns that users of BIND 9.4.2rc1 need to take caution when upgrading. Apparently, any applications you've built that are linked against 9.4.2rc1 will need to be rebuilt. See the BIND 9.4.2 Release Notes for more information.