If R changes from 3.0.1 to 3.0.2, or more generally from m.n.p to m.n.q, 
is it necessary to refresh libraries to match the version, e.g., with 
update.packages(checkBuilt=TRUE, ask=FALSE)?  The R Windows FAQ 2.8 says
"For those with a personal library (folder R\win-library\x.y of your 
home directory, R\win64-library\x.y on 64-bit builds), you will need to 
update that too when the minor version of R changes (e.g. from 3.0.2 to 
3.1.0)."

This suggests that in m.n.q n is the minor version (which would make q 
the release?), and that the minor version does not change between 3.0.1 
and 3.0.1.  But I'm not sure.

I'm interested in Unix as well as Windows.

Thanks.
Ross Boylan

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