Feature: A new passed counter in the API statistics of the stream module’s status_zone directive tracks connections passed to other sockets using pass directives.
Bugfix: When using virtual servers or the pass directives in the stream module, connections could be accounted incorrectly in the statistics API.
Bugfix: Worker processes could crash on configurations with 5 ACME clients or more; the bug had appeared in 1.6.0.
Bugfix: Handling cached responses with the X-Accel-Redirect header could crash the worker process. Thanks to Maxim Dounin (freenginx) and Jiří Setnička.