R version 3.2.5 was released some days ago, and is a bug fix for version 3.2.4.
R version 3.3.0 will be released in a few days time.
The packages I have in CRAN are all tested and automatically built for both versions. The packages under development that are only available through the repositories at this site have been informally tested to work under R 3.3.0 beta release. I have built some binaries and added them to the repositories. I will write a new post as soon as all binaries are available for the new R version. Installation from sources should in all cases work.