Add other breaking changes jupyterhub#1521 jupyterhub#1581 jupyterhub#1531 jupyterhub#1543 jupyterhub#1588

Author: manics

CHANGES.md

@@ -13,7 +13,11 @@ make it easier to track what has changed over time_
 
 ## Breaking changes
 
-The `binderhub.build.Build` class is replaced by the Traitlets based `binderhub.build.KubernetesBuildExecutor` class [#1581](https://github.com/jupyterhub/binderhub/pull/1581), [#1521](https://github.com/jupyterhub/binderhub/pull/1521).
+### `binderhub.build.Build` replaced by `binderhub.build.KubernetesBuildExecutor`
+
+The `binderhub.build.Build` class is replaced by the Traitlets based `binderhub.build.KubernetesBuildExecutor` class
+[#1518](https://github.com/jupyterhub/binderhub/pull/1518),
+[#1521](https://github.com/jupyterhub/binderhub/pull/1521).
 The following build configuration properties should be set using Traitlets in the BinderHub configuration:
 
 - `c.BinderHub.appendix` ➡️ `c.BuildExecutor.appendix`
@@ -30,6 +34,26 @@ The following build configuration properties should be set using Traitlets in th
 If you have subclassed `binderhub.build.Build` you must update your subclass (including `__init__()` if defined) to inherit from `binderhub.build.KubernetesBuildExecutor`.
 The behaviour of the class is otherwise unchanged.
 
+### `dind.enabled` replaced by `imageBuilderType: dind`
+
+The BinderHub builder has been generalised to support non-docker implementations
+[#1531](https://github.com/jupyterhub/binderhub/pull/1531).
+If you are using Docker-in-Docker replace:
+
+- `dind.enabled: true` ➡️ `imageBuilderType: dind`
+
+The `component: dind` pod builder label is changed to `component: image-builder`
+[#1543](https://github.com/jupyterhub/binderhub/pull/1543)
+
+### `imageCleaner.host.enabled` replaced by`imageCleaner.enabled`
+
+When Docker-in-Docker (dind) is enabled the image cleaner used to be run in Docker-in-Docker and on the host Docker.
+This is no longer the case, the image cleaner is only run in one place
+[#1588](https://github.com/jupyterhub/binderhub/pull/1588).
+If you were previously disabling the image cleaner replace:
+
+- `imageCleaner.host.enabled: false` ➡️ `imageCleaner.enabled: false`
+
 # 0.2.0
 
 # master@{2019-07-01}...master@{2019-10-01}