changelog: adding entry for PR
* Feature - Configurable container image pull behavior [#1348](https://github.com/aws/amazon-ecs-agent/pull/1348)
* Bug - Fixed a bug where Docker Version() API never returns by adding a timeout [#1363](https://github.com/aws/amazon-ecs-agent/pull/1363)
* Bug - Fixed a bug where tasks could get stuck waiting for execution of CNI plugin [#1358](https://github.com/aws/amazon-ecs-agent/pull/1358)
+* Bug - Fixed a bug where task cleanup could be blocked due to incorrect sentstatus [#1383](https://github.com/aws/amazon-ecs-agent/pull/1383)
## 1.17.3
* Enhancement - Distinct startContainerTimeouts for windows/linux, introduce a new environment variable `ECS_CONTAINER_START_TIMEOUT` to make it configurable [#1321](https://github.com/aws/amazon-ecs-agent/pull/1321)
