Upgrades and security fixes were recently de-coupled. Now responsible vendors do a monthly security updates, regardless of version. So if you&#x27;re on the 4.x or 5.x tree you should be able to get these, OEM depending.<p>The problem here is that a lot of smaller OEMs will never bother. Google might put mandatory security updates into its next Gapps contract. I guess we&#x27;ll see.<p>&gt; the features (and change in looks&#x2F;functionality) introduced in the later versions do not interest me much.<p>I think the advances in volta&#x2F;doze&#x2F;app suspend for battery life and the 6.0 privacy settings, not to mention the Material overhaul are very big benefits to Android.  Android 6.0 is a much more mature OS than the 4.x tree. In fact, I&#x27;d say they only recently have reached parity with iOS at this release. I don&#x27;t get many &quot;I should switch to iphone&quot; feelings anymore. Many of my privacy and battery life concerns were addressed in 6.0 and the 6P is amazing hardware for the price.