New versions of several of my R packages are now available on CRAN. rcdk 2.9.6 goes along with rcdklibs 1.2.3. The latter now uses the most recent cdk-1.2.x branch from Github. The former fixes a number of bugs relating to descriptor calculations, saving molecules in SD format and setting/getting properties on molecules. Unfortunately, because the 1.2.x branch does not have robust depiction code, the visualization methods in rcdk are currently disabled. The fingerprint package has also been updated and now includes a number of unit tests.