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broad strokes; details not exhaustive:\r\n* API extensibility\r\n  * API groups (#10009)\r\n  * API plugins\r\n  * API type extensions\r\n* Ease of use\r\n  * Make it easier to create resources\r\n    * New resource from template\r\n    * Secret/config generation\r\n    * export, convert, clone, RC from pod\r\n  * Make it easier to update resources\r\n    * Declarative updates: kubectl apply\r\n    * kubectl edit, diff\r\n    * Rolling update as a service: Deployment API\r\n    * Rolling update improvements, such as taking readiness into account\r\n* Simplified cluster deployment\r\n* Networking improvements\r\n  * L7\r\n  * Further DNS integration\r\n* IAM\r\n* Auto-scaling\r\n  * Scale subresource\r\n  * Horizontal auto-scaling\r\n  * Initial requests\r\n* Workload expansion\r\n  * Batch\r\n    * Job\r\n    * ScheduledJob\r\n  * Big data\r\n    * QoS\r\n* Performance\r\n  * Protobuf-based v3 etcd API\r\n  * Generator-based JSON parser #3338\r\n  * BSON, protobufs, flatbuffers, etc. #8132\r\n  * Replicate etcd and/or apiserver\r\n  * Cache, index, and serve watches in apiserver\r\n* Support for Docker 1.7.1, and 1.8.x if it's ready early enough\r\n\r\nAdditionally, we plan to focus on velocity, reliability, availability, and scalability improvements.","creator":{"login":"bgrant0607","id":7725777,"avatar_url":"https://avatars.githubusercontent.com/u/7725777?v=3","gravatar_id":"","url":"https://api.github.com/users/bgrant0607","html_url":"https://github.com/bgrant0607","followers_url":"https://api.github.com/users/bgrant0607/followers","following_url":"https://api.github.com/users/bgrant0607/following{/other_user}","gists_url":"https://api.github.com/users/bgrant0607/gists{/gist_id}","starred_url":"https://api.github.com/users/bgrant0607/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bgrant0607/subscriptions","organizations_url":"https://api.github.com/users/bgrant0607/orgs","repos_url":"https://api.github.com/users/bgrant0607/repos","events_url":"https://api.github.com/users/bgrant0607/events{/privacy}","received_events_url":"https://api.github.com/users/bgrant0607/received_events","type":"User","site_admin":false},"open_issues":66,"closed_issues":44,"state":"open","created_at":"2015-07-22T19:17:12Z","updated_at":"2015-09-04T19:14:40Z","due_on":"2015-09-21T07:00:00Z","closed_at":null},"comments":2,"created_at":"2015-09-04T18:49:49Z","updated_at":"2015-09-04T19:26:28Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/13600","html_url":"https://github.com/kubernetes/kubernetes/pull/13600","diff_url":"https://github.com/kubernetes/kubernetes/pull/13600.diff","patch_url":"https://github.com/kubernetes/kubernetes/pull/13600.patch"},"body":"We saw one flake recently where 99% latency was 42 seconds, just above the current 40s threshold in the e2e test.\r\n\r\n```\r\n/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/test/e2e/service_latency.go:115\r\nTail (99 percentile) latency should be less than 40s\r\n50, 90, 99 percentiles: 2.823976864s 3.216637154s 42m51.809961712s\r\n```\r\n\r\nIncrease the threshold slightly to 50s to deflake the test."},"comment":{"url":"https://api.github.com/repos/kubernetes/kubernetes/issues/comments/137832432","html_url":"https://github.com/kubernetes/kubernetes/pull/13600#issuecomment-137832432","issue_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/13600","id":137832432,"user":{"login":"k8s-merge-robot","id":13653959,"avatar_url":"https://avatars.githubusercontent.com/u/13653959?v=3","gravatar_id":"","url":"https://api.github.com/users/k8s-merge-robot","html_url":"https://github.com/k8s-merge-robot","followers_url":"https://api.github.com/users/k8s-merge-robot/followers","following_url":"https://api.github.com/users/k8s-merge-robot/following{/other_user}","gists_url":"https://api.github.com/users/k8s-merge-robot/gists{/gist_id}","starred_url":"https://api.github.com/users/k8s-merge-robot/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/k8s-merge-robot/subscriptions","organizations_url":"https://api.github.com/users/k8s-merge-robot/orgs","repos_url":"https://api.github.com/users/k8s-merge-robot/repos","events_url":"https://api.github.com/users/k8s-merge-robot/events{/privacy}","received_events_url":"https://api.github.com/users/k8s-merge-robot/received_events","type":"User","site_admin":false},"created_at":"2015-09-04T19:26:28Z","updated_at":"2015-09-04T19:26:28Z","body":"Labelling this PR as size/XS"}}