Enhancements
* Now works with PostgreSQL https://github.com/pynbody/tangos/pull/206
* Enhanced speed for some queries which involve returning links, as part of https://github.com/pynbody/tangos/pull/206
* Removes need for MySQL ONLY_FULL_GROUP_BY to be disabled, as part of https://github.com/pynbody/tangos/pull/206
* Add ability to get typetag in a live calculation https://github.com/pynbody/tangos/pull/202
* Add support for Gadget 4 snapshots with subfind halos https://github.com/pynbody/tangos/pull/203
* Add experimental facility to patch trees where halos (esp subhalos) get 'lost' by halo finder https://github.com/pynbody/tangos/pull/192
* Add ability to get typetag in a live calculation https://github.com/pynbody/tangos/pull/202
* Improved ability to use Enzo, yt, and rockstar by anchwr https://github.com/pynbody/tangos/pull/205 https://github.com/pynbody/tangos/pull/207
* Turn `tangos_add_bh` stand-alone command line tool into `tangos import-changa-bh` subcommand by apontzen in https://github.com/pynbody/tangos/pull/208
Bug fixes
* Issue a sensible error if no subcommand provided to tangos command line https://github.com/pynbody/tangos/pull/200
* Fix bug in matching across where multiple target halos exist https://github.com/pynbody/tangos/pull/201
* Fix 197 – locking issue when linking halos https://github.com/pynbody/tangos/pull/198
**Full Changelog**: https://github.com/pynbody/tangos/compare/v1.6.1...v1.7.0