M and F series devices are eligible for quarterly Security patch level update. But at this time you are absolutely right now, M and F series devices are running on old May Security Patch Level Update and July Security Patch Level Update is due for this devices so quarterly security patch level update is also late. You will be get it soon maybe in this month. If you like please accept as a solution it's help to others users also, click on 3dots in my reply section and click on accept solution. Thanks.
