tidyr 0.2.0 adds expand() for filling missing combinations, unnest() for list-columns, and better separate() control
magrittr 1.5 adds functional sequences (define functions with pipes), lambda syntax with braces, and %T>%, %$%, %<>% operators
Introducing rvest: scrape web data with CSS selectors or XPath, extract text/tables, and navigate sites with sessions
New 8-hour video course from RStudio and O'Reilly covering R programming, data manipulation, visualization, and modeling
RSQLite 1.0.0 cleans up the API, adds initExtension() for useful functions, and improves transaction handling
dplyr 0.3 adds distinct(), slice(), rename(), transmute(), count(), data_frame(), flexible joins, and set operations
ggvis 0.4 adds layer_boxplots(), better error handling, and more reliable interactive graphics with dynamic data
devtools 1.6 improves install_github(), adds session_info(), and introduces use_data(), use_testthat(), use_travis() helpers
Shiny 0.10.2 adds single-file apps (app.R), progress bars, IE 8/9 file uploads, and upgrades DataTables to 1.10
testthat 0.9 adds skip() and skip_on_cran(), describe() for BDD-style tests, with_mock() for mocking, and reference comparisons
New article: track visitors and usage patterns in your Shiny apps using Google Analytics and jQuery
Packrat 0.4.1 hits CRAN with local repository support, experimental package caching, and Windows improvements
httr 0.5 adds write_disk() to save response bodies directly to disk, plus preliminary HTTP caching support
Shiny 0.10.1 adds full Unicode support on Windows, 'user/repo' syntax for runGitHub(), and inline output options
New R Markdown cheat sheet: render reports to PDF, HTML, or Word, embed R code, and create interactive documents
httr 0.4 adds quick start and API package vignettes, headers()/cookies() extractors, encode argument, and progress bars
Four new data packages: babynames, fueleconomy, nasaweather, and nycflights13—large datasets for learning data analysis
Packrat 0.4 adds automatic snapshots, bundle/unbundle for sharing, on/off mode, and RStudio IDE integration
Introducing tidyr: reshape messy data with gather() (wide to long), separate() (split columns), and spread() (long to wide)
New Shiny Dev Center articles: create interactive documents and slideshows by embedding Shiny in R Markdown
