[R-sig-Debian] Is r2u at 3.4.1?

[Chris Evans]

I am putting this here as it may be of general and not just my own 
interest.  I am currently running 4.3.1 on Ubuntu 22.04.2 LTS but am 
hitting an issue that the magick package won't update because 
libmagick++-dev won't update because, presumably, of two repositories in 
my sources.list disagreeing about versions required.  That's not so 
urgent an issue for me that I wont just wait to see if it sorts itself 
out.  In my experience such collisions sometimes do.

However, it prompted me to some questions:

1) Is this telling me it's time I went to r2u which does seem a "very 
good thing"?  Any reason NOT to change?

2) I read https://eddelbuettel.github.io/r2u/, not for the first time, 
and it looks simple, even I should  be able to do that.  Any gotchas?  
See #3:

3) but it says things I don't really understand about the R version:
    "Current versions are based on R 4.3.0, and BioConductor release 
3.17 packages are provided when required by CRAN packages. Binaries are 
still R 4.2.* based (unless a forced rebuild was required) but the 
containers provide R 4.3.0. We expect to switch to R 4.3.0-based builds 
very soon."

    3a) I don't understand why "binaries", presumably binary packages, 
would be at a different release from ... what?  What is not binary?  
Pure R source packages?
    3b) _IS_ it still at 4.3.0 as I'm at 3.4.1 and would be a bit 
reluctant to go backwards down the release sequence?

TIA and enormous respect to Dirk for this and all the other work he does 
for R,

Chris

-- 
Chris Evans (he/him)
Visiting Professor, UDLA, Quito, Ecuador & Honorary Professor, 
University of Roehampton, London, UK.
Work web site: https://www.psyctc.org/psyctc/
CORE site: http://www.coresystemtrust.org.uk/
Personal site: https://www.psyctc.org/pelerinage2016/