### Fluentd
* Migrated fluentd addon to daemon set ([#32088](https://github.com/kubernetes/kubernetes/pull/32088), [@piosz](https://github.com/piosz))

- fluentd-gcp-scaler has been updated to v0.4.0, up from 0.3.0 in v1.11. ([#67691](https://github.com/kubernetes/kubernetes/pull/67691))
- fluentd in fluentd-es-image is unchanged from 1.10: v1.1.0 ([#58525](https://github.com/kubernetes/kubernetes/pull/58525))

* [fluentd-gcp addon] Update Stackdriver plugin to version 0.6.7 ([#52565](https://github.com/kubernetes/kubernetes/pull/52565), [@crassirostris](https://github.com/crassirostris))
* Remove duplicate proto errors in kubelet. ([#52132](https://github.com/kubernetes/kubernetes/pull/52132), [@adityadani](https://github.com/adityadani))

* [fluentd-gcp addon] Fixes fluentd deployment on GCP when custom resources are set. ([#55950](https://github.com/kubernetes/kubernetes/pull/55950), [@crassirostris](https://github.com/crassirostris))

### GCP

- [stackdriver addon] Bumped prometheus-to-sd to v0.5.0 to pick up security fixes.
[fluentd-gcp addon] Bumped fluentd-gcp-scaler to v0.5.1 to pick up security fixes.
[fluentd-gcp addon] Bumped event-exporter to v0.2.4 to pick up security fixes.
[fluentd-gcp addon] Bumped prometheus-to-sd to v0.5.0 to pick up security fixes.

- fluentd-gcp-scaler has been updated to v0.5.0 ([#68837](https://github.com/kubernetes/kubernetes/pull/68837))
- Fluentd in fluentd-elasticsearch is unchanged at v1.2.4 since Kubernetes 1.11 ([#67434](https://github.com/kubernetes/kubernetes/pull/67434))
- fluentd-elasticsearch has been updated to v2.2.1 ([#68012](https://github.com/kubernetes/kubernetes/pull/68012))

### Other notable changes

* Fix for service controller so that it won't retry on doNotRetry service update failure. ([#54184](https://github.com/kubernetes/kubernetes/pull/54184), [@MrHohn](https://github.com/MrHohn))
* [fluentd-gcp addon] Fluentd now runs in its own network, not in the host one. ([#54395](https://github.com/kubernetes/kubernetes/pull/54395), [@crassirostris](https://github.com/crassirostris))

* Update cluster-proportional-autoscaler, etcd-empty-dir-cleanup, fluentd-gcp, and kube-addon-manager addons with refreshed base images containing fixes for CVE-2015-8271, CVE-2016-7543, CVE-2016-9841, CVE-2016-9843, CVE-2017-1000366, CVE-2017-2616, and CVE-2017-7507. ([#48011](https://github.com/kubernetes/kubernetes/pull/48011),...

* Update fluentd-gcp addon to 1.25.2 ([#41863](https://github.com/kubernetes/kubernetes/pull/41863), [@ixdy](https://github.com/ixdy))

- Grafana is unchanged at v4.4.3 as of Kubernetes 1.10. ([#53319](https://github.com/kubernetes/kubernetes/pull/53319))
- The fluent-plugin-kubernetes_metadata_filter plugin in fluentd-elasticsearch is unchanged at v2.1.6. ([#71180](https://github.com/kubernetes/kubernetes/pull/71180))
- fluentd-gcp is unchanged at v3.2.0 as of Kubernetes 1.13. ([#70954](https://github.com/kubernetes/kubernetes/pull/70954))