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@@ -7,6 +7,22 @@ be found.
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## 1.13.0 (2016-12-08)
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+**IMPORTANT**: In Docker 1.13 managed plugin api changed from the experimental
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+version introduced in Docker 1.12. Plugins installed with Docker 1.12 should
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+therefore be **uninstalled** _before_ upgrading to Docker 1.13. You can
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+uninstall plugins using the `docker plugin rm` command.
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+
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+If you have already upgraded to Docker 1.13 without uninstalling plugins, and
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+get this error message during docker daemon startup;
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+
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+ Error starting daemon: json: cannot unmarshal string into Go value of type types.PluginEnv
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+
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+Take the following steps to manually remove all plugins;
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+
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+- Remove plugins.json from: `/var/lib/docker/plugins/`
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+- Restart Docker
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+- Reinstall your plugins
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+
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### Builder
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+ Add capability to specify images used as a cache source on build. These images do not need to have local parent chain and can be pulled from other registries [#26839](https://github.com/docker/docker/pull/26839)
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+ (experimental) Add option to squash image layers to the FROM image after successful builds [#22641](https://github.com/docker/docker/pull/22641)
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