Each time when I build my R markdown (Knit the current) document to have LaTeX and PDF files, I see in RStudio a warning message:
Your latexmk version seems to be too low. You may need to update the latexmk package or your LaTeX distribution.
Page https://www.ctan.org/pkg/latexmk says that current version of latexmk is 4.52c
However when I type
sudo apt-get update && sudo apt-get upgrade sudo apt-get install --only-upgrade latexmk
I see on my screen:
latexmk is already the newest version (1:4.41-1).
which is consistent with information which I get when I type:
Latexmk, John Collins, 1 January 2015. Version 4.4
I wonder if it is possible to (and if I should) upgrade latexmk on my Ubuntu 16.04.1 LTS or should I just ignore this warning? Is there any different PPA for latexmk / RStudio dependencies?