We are often asked how may OS updates Devices receive plus the lack of security updates from Members on various Devices.   How many security updates you receive will depend on the Device.   The  7 year update policy only applies to Flagship Devices  (2024 onwards) though the A16 is elegible for 6 years of upgrades and subsequent A Devices should follow suit, as was confirmed for A36 and A56. https://news.samsung.com/global/samsung-galaxy-a56-5g-galaxy-a36-5g-and-galaxy-a26-5g-are-now-availa...

Some information re the update policy in this article https://sammyguru.com/these-galaxy-phones-are-eligible-for-seven-years-of-updates/ 

However the frequency of security updates is published on Samsung's security site and is regularly updated.   This can easily be accessed here https://security.samsungmobile.com/workScope.smsb