**Breaking Changes**
* spark roll back scheduling disable (653) ([93615d9](https://github.com/Azure/aztk/commit/93615d9)), closes [653](https://github.com/Azure/aztk/issues/653)
* remove custom scripts (650) ([442228a](https://github.com/Azure/aztk/commit/442228a)), closes [650](https://github.com/Azure/aztk/issues/650)
* 0.9.0 deprecated code removal (645) ([eef36dc](https://github.com/Azure/aztk/commit/eef36dc)), closes [645](https://github.com/Azure/aztk/issues/645)
* SDK refactor (622) ([b18eb69](https://github.com/Azure/aztk/commit/b18eb69)), closes [622](https://github.com/Azure/aztk/issues/622)
**Features**
* Add ability to specify docker run options in toolkit config (613) ([9d554c3](https://github.com/Azure/aztk/commit/9d554c3)), closes [613](https://github.com/Azure/aztk/issues/613) [3](https://github.com/Azure/aztk/issues/3)
* add brief flag to debug tool (634) ([b7bdd8c](https://github.com/Azure/aztk/commit/b7bdd8c)), closes [634](https://github.com/Azure/aztk/issues/634)
* first run docs update (644) ([9098533](https://github.com/Azure/aztk/commit/9098533)), closes [644](https://github.com/Azure/aztk/issues/644)
* SDK refactor (622) ([b18eb69](https://github.com/Azure/aztk/commit/b18eb69)), closes [622](https://github.com/Azure/aztk/issues/622)
**Bug Fixes**
* diagnostics function write error result bug (649) ([293f297](https://github.com/Azure/aztk/commit/293f297)), closes [649](https://github.com/Azure/aztk/issues/649)
* expose get cluster configuration API (648) ([7c14648](https://github.com/Azure/aztk/commit/7c14648)), closes [648](https://github.com/Azure/aztk/issues/648)
* remove bad node scripts import (652) ([0a9ce94](https://github.com/Azure/aztk/commit/0a9ce94)), closes [652](https://github.com/Azure/aztk/issues/652)
* typo in vsts build (654) ([7c37b06](https://github.com/Azure/aztk/commit/7c37b06)), closes [654](https://github.com/Azure/aztk/issues/654)
* update incompatible dependencies in setup.py (639) ([f98d037](https://github.com/Azure/aztk/commit/f98d037)), closes [639](https://github.com/Azure/aztk/issues/639)
**Internal Changes**
* fix pylint warnings (651) ([828162e](https://github.com/Azure/aztk/commit/828162e)), closes [651](https://github.com/Azure/aztk/issues/651)
* update vsts build (635) ([6eda21e](https://github.com/Azure/aztk/commit/6eda21e)), closes [635](https://github.com/Azure/aztk/issues/635)
* verify code formatting in build (633) ([7730c46](https://github.com/Azure/aztk/commit/7730c46)), closes [633](https://github.com/Azure/aztk/issues/633)