Unlike other manufacturers (when my P85 was delivered in early 2013), Tesla promised free software updates for the life of the car. This is something other manufacturers are moving towards in their newer "smart" cars. So, Tesla set the expectation that Model S/X owners would continue to see improvements - which they really needed to do, given the limited functionality present when the first Model S cars were delivered.
What's surprising is that 4 years later, we are still dealing with limited navigation and media player apps - that look great on the displays, but lack many useful features - plus smartphone integration (other than the calendar integration) is very limited - and, the software still has many bugs (autoplaying USB overnight or losing radio presets).
At some point, Tesla will have to address these limitations & quality problems - especially when the infotainment software could become of more interest to potential owners when other manufacturers are delivering long range EVs (Bolt?).
However... Over the last 4 years, each major software release typically has a primary focus - and outside of that primary focus, there have been few or small improvements. In the first year, most of the improvements were on sleep mode and energy management. The last two years, they've focused on rolling out and now improving AP.
While I'm hopeful 8.0 will be different, and we'll finally see some major improvements to the software originally delivered on our car 4 years ago, based on the prior releases, we may be disappointed - again.