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Added
* The `/logger` API has a new field called `options`. This is an array of
  strings that specify additional logging configurations. The only supported
  value is `LogDirtyPages`.
* When the `LogDirtyPages` option is configured via `PUT /logger`, a new metric
  called `memory.dirty_pages` is computed as the number of pages dirtied by the
  guest since the last time the metric was flushed.
* Log messages on both graceful and forceful termination.
* Availability of the list of dependencies for each commit inside the code base.
* Documentation on vsock experimental feature and host setup recommendations.

Changed
* `PUT` requests on `/mmds` always return 204 on success.
* `PUT` operations on `/network-interfaces` API resources no longer accept
  the previously required `state` parameter.
* The jailer starts with `--seccomp-level=2` (was previously 0) by default.
* Log messages use `anonymous-instance` as instance id if none is specified.

Fixed
* Fixed crash upon instance start on hosts without 1GB huge page support.
* Fixed "fault_message" inconsistency between Open API specification and
  code base.
* Ensure MMDS compatibility with C5's IMDS implementation.
* Corrected the swagger specification to ensure `OpenAPI 2.0` compatibility.