Version 6.2.1

Version 6.2.1 is a hotfix to address the failing automated CRAN checks for 6.2.0. Chiefly, in CRAN’s Debian R-devel (2018-12-10) check platform, errors of the form “length > 1 in coercion to logical” occurred when either argument to && or || was not of length 1 (e.g. nzchar(letters) && length(letters)). In addition to fixing these errors, version 6.2.1 also removes a problematic link from the vignette.

Version 6.2.0

New features

Bug fixes


Version 6.1.0

New features

Bug fixes


Version 6.0.0

Breaking changes

Bug fixes

New features


Version 5.4.0

Version 5.3.0

Version 5.2.1

Version 5.2.0

Version 5.1.2

Version 5.1.0

Version 5.0.0

Version 4.4.0

Version 4.3.0: 2017-10-17

Version 4.3.0 has: - Reproducible random numbers - Automatic detection of knitr dependencies - More vignettes - Bugfixes

Version 4.2.0: 2017-09-29

Version 4.2.0 will be released today. There are several improvements to code style and performance. In addition, there are new features such as cache/hash externalization and runtime prediction. See the new storage and timing vignettes for details. This release has automated checks for back-compatibility with existing projects, and I also did manual back compatibility checks on serious projects.

Version 3.0.0: 2017-05-03

Version 3.0.0 is coming out. It manages environments more intelligently so that the behavior of make() is more consistent with evaluating your code in an interactive session.

Version 1.0.1: 2017-02-28

Version 1.0.1 is on CRAN! I’m already working on a massive update, though. 2.0.0 is cleaner and more powerful.