* Upgrade gevent and greenlet for CVE-2016-5180 and gevent/gevent477
1.9.0
Not secure
* piptools upgrade of transitive dependencies. Most notably this was run to upgrade gunicorn to 19.7.1, which allows for using FORWARDED\_ALLOW\_IPS in the environment, as well as any other newer gunicorn settings.
1.8.0
Not secure
* Switch LRU for in-memory cache from an inefficient python implementation to lru-dict.