Hm. As far as I knew, the "components" that Xcode updates at first launch are 
only related to on-device iOS/iPadOS/watchOS/tvOS development.

> On Nov 15, 2020, at 20:39, John Chivian <jchiv...@chivian.com> wrote:
> 
> @Ryan - When I start Xcode after updating it tells me it is installing needed 
> components, and command line tools *is* one of the components updated.  It 
> tells me that explicitly during the install.  Again, the "xcode-select 
> install" is not something I've done manually either of the last two times 
> I've updated MacPorts.  For me, that step was not required when I did the 
> MacPorts update after the Catalina install, or just now after the Big Sur 
> install.  MacPorts continues to function as expected retrieving and building 
> packages as needed.  I don't mean to argue, I am just relaying what I've 
> personally experienced.  Perhaps the action is remembered somewhere in Xcode?
> 
> On 11/15/20 17:28, Ryan Schmidt wrote:
>> 
>> On Nov 15, 2020, at 16:53, John Chivian wrote:
>> 
>>> For me, every time Xcode is updated, the first time I start it following 
>>> its update I am prompted to update components,
>> Yes.
>> 
>>> and the current version command line tools are installed.
>> No. "Components" are not "command line tools". You must also update the 
>> command line tools separately.
>> 
>>> Perhaps the manual xcode-select is required if you don't actually start 
>>> Xcode the application following its update.
>>> 
>>> My experience with MacPorts and Big Sur (as before with Catalina) was to 
>>> simply follow the MacPorts update instructions, after updating and starting 
>>> Xcode as described above, but without that manual xcode-select step.
>> You *MUST* update the Xcode command line tools separately in addition to 
>> updating Xcode.
>> 
> 

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