官方即將取消AMO上擴展的開發頻道?

https://addons.mozilla.org/en-US/firefox/addon/ublock-origin-dev/
剛看到UBO單獨發佈了個dev build，以下引述作者說法：
I've received an email from Mozilla informing me that starting February 22nd, 2018, the beta channel on AMO will no longer be available for developers to publish beta versions of their extensions.
As per email, those using the beta version of uBO will be automatically moved to the latest release version of uBO when the release version become greater than the last version available in the beta channel.