Are Gmail label notifications never going to be supported again?

Using 4.2.21. The feature where X-notifier would ding when I received emails outside of my inbox (i.e. emails that go to my Amazon label and bypass the inbox) has not worked for many months. Yes, "notify inbox only" is unchecked. Am I missing a critical update or has a new extension been created that I should be using?

you are not alone. mine hasn't been working for a long time. gmails aren't working at all because all my mails skip inbox and sort into other labels. hotmails are hit and miss. I gave up already.