i'm aware of the disadvantages but i'd like to have the choice to do so anyway 
if/when i see fit.

On Mon, 8 Jan 2024 10:22:43 +0200, Toomas Soome via openindiana-discuss wrote:
> reboot is needed to verify your setup is still working as supposed after an 
> update. You can have 
> different kind of potential issues; if file is overwritten, then your 
> currently running app will most 
> likely crash, if the file is replaced, then running apps will continue to use 
> old content till the 
> apps are restarted and you can have mixture of old and new setup, which can 
> give interesting results 
> sometimes (you think your system has security patch installed, but actually 
> old code is running and 
> you are still vulnerable for example).
> 
> Of course, the context can be different, getting your vi or gnu tar updated 
> most likely will not 
> affect your system, but there are different scenarios.
> 
> Having BE concept actually does imply that you get used to have those BE’s 
> created, so that you can 
> actually rely on actually having the option to roll back in case of failure 
> from update, or recovery 
> from other kind of corruption. And yes, the cost of having those BE’s is 
> needing to actually create 
> those BE’s and leave old one functional.
> 
> I have seen plenty of cases where people have done those “small changes” on 
> live systems over long 
> period of time and ending up unbootable or broken systems once they actually 
> reboot the system. 
> Therefore I really encourage to have habit to reboot the system, to make sure 
> that everything is still 
> behaving as you do expect to.
> 
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