This is ZomboDB v3.1.13 and it is recommended all ZomboDB users upgrade to this release as soon as possible. The major change with this release is that ZomboDB now works correctly with the latest Postgres point releases (9.3.17, 9.4.12, and 9.5.7).
zdb_tally()correctly applies regex filters
#expand()s now work correctly across index links
Thanks to everyone who reported bugs, and definitely thanks for your patience – it's been a long few months!