When R 3.5 was released, the good folks at the Bioconductor project also released a new version, 3.7. Since I was rebuilding for R 3.5, I didn’t immediately include the updates to Bioconductor in my builds. I have now taken the time to include the update, so there are an additional 83 updated/new packages on c2d4u. (3.4 or 3.5 versions) My PPAs do not provide all the Bioconductor packages. Some are included in a CRAN Task View, therefore they are included in c2d4u.