On 8 June 2026 at 06:26, Jeff Newmiller via R-help wrote:
| Don't upgrade packages just because upgrade.packages says there are new 
packages every day... that way leads to obsessive-compulsive disorder (OCD).

As a general rule, this is objectively questionable advice.

CRAN _excels_ at being _always being buildable / installable_.

To use a software analogy, we could call this 'build at @HEAD' as one would
at a large mono-repo.  Which is what CRAN essentially is.  I have updated
more or less daily / multiple times per week since CRAN started, and I have
done so mostly on Linux where it is "even more expensive" as one generally
instals from source (unless newer services like r2u or cran2copr are used).

But if you know what you are doing, and design you deployments well with
packages you trust, and maybe avoid some others you trust less / have shown a
tendency to change abruptly then this is as stable as it gets. I sometimes
reference some examples for that: CRANberries has been running more-or-less
unalted since 2007, on a machine that gets the daily (or close to daily)
updates and has stayed alive near-constantly. Same for some things I run that
are less visible to the outside.  So ... "your mileage may vary".  CRAN
supports "continuous" updates just fine. It does it to itself too.

Dirk

-- 
Dirk Eddelbuettel | [email protected] | http://dirk.eddelbuettel.com

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