In order to give creators more control and convenience when publishing videos to YouTube channel --- YouTube introducing three new publishing features including: "public videos that don't notify subscribers, adding custom thumbnails while the video uploads, and a new tags editor."
Public videos that don't notify subscribers. Creators who want to upload public videos that don't notify their subscribers in their homepage feed, via email (for opted in subscribers), and in youtube.com/my_subscriptions -- starting today, "can now choose to uncheck the option to "Notify subscribers" in the Advanced Settings section during the upload process," informs Google. Public videos that you choose not to notify subscribers about will still be discoverable through search, suggested videos, and on your channel.
If used batch upload features in CMS, an equivalent XML tag is available.
Upload a custom thumbnail right after the upload begins. Back in April, YouTube introduced the ability to set the custom thumbnail directly in the upload interface, while the video is uploading. Now, beginning today, creators can pick their preferred thumbnail right away, shortly after the video upload starts.
New tags editor. Google also simplified the interface to input and manage your tags -- now, just type in the text for each tag, and either add a comma or hit enter. "This will store the text as a distinct tag. Once the tag has been entered, the text will be surrounded by a blue box which indicates that the word or phrase you entered has been entered as a tag," Google said.