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Re: Dist-upgrade or upgrade. Which?

----- Original Message -----
> From: Jochen Spieker <ml@well-adjusted.de>
> To: debian-user@lists.debian.org
> Cc: 
> Sent: Sunday, April 21, 2013 2:25 AM
> Subject: Re: Dist-upgrade or upgrade.  Which?
> Patrick Bartek:
>>  I've been using Wheezy 64-bit for several months now, and as
>>  recommended[1] having been using "dist-upgrade" for upgrading it. 
>  My
>>  sources-list[2] is set to "Wheezy" and not "testing" as 
> per those same
>>  instructions.  When Wheezy is promoted to "Stable" should I 
> switch to
>>  "apt-get upgrade" instead?  Or does it really matter all that 
> much?
> The main difference to keep in mind is that apt-get's upgrade operation
> will never change the set of installed packages. Ever. It will only
> upgrade already installed packages. No removals, no new packages.

Yes.  I am aware of this.  But it occurred to me:  Once Wheezy becomes Stable, the only changes made to its code will be security and bug fixes.  So, even a dist-upgrade should have the same effect as upgrade.  At least, as far as the Main repository is concerned.  Right?  Contrib, nonfree or 3rd party repos might have a different effect.

> As the stable distribution mainly receives security updates, performing
> an upgrade is enough most of the time. (Point releases might be
> different.)
> [snip]
> To put it short: irrespective of Debian flavour, my advice is to
> habitually perform upgrades and only use dist-upgrade when you see it is
> actually necessary in order to upgrade certain packages.

This is something I'd been thinking about.  What overall affect would mixing upgrade and dist-upgrade, if even only for select packages, have on a "Stable" system?  Could that possibly "break" it?  It was one of the reasons for my initial inquiry.


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