watcher/releasenotes/notes/api-microversioning-7999a3e...

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---
features:
Watcher starts to support API microversions since Stein cycle. From now
onwards all API changes should be made with saving backward compatibility.
To specify API version operator should use OpenStack-API-Version
HTTP header. If operator wants to know the mininum and maximum supported
versions by API, he/she can access /v1 resource and Watcher API will
return appropriate headers in response.