RcppParallel provides portable parallel C++ algorithms using Intel TBB or TinyThread, achieving 200-300x speedups
purrr 0.2.0 adds type-stable map functions (map_lgl/int/dbl/chr), flatten variants, and safely() for error handling
ggplot2 2.0.0: official extension mechanism, new geoms (geom_count, geom_curve, geom_label), appearance tweaks, and facet labels
svglite produces compact, web-optimized SVG graphics from R, with smaller file sizes and faster rendering than base R's svg() device
roxygen2 5.0.0 adds RoxygenNote for version tracking, easier package documentation, and support for documenting re-exported functions
Announcing the first Shiny Developer Conference at Stanford, January 2016, for developers ready to build performant, robust Shiny apps
readr 0.2.0 adds locales for international data (encodings, date formats, decimal marks), comment support, and CSV/TSV writers
testthat 0.11.0 adds expect_silent() for checking no output/warnings, skip_on_os() and skip_on_appveyor(), plus random encouragement
Introducing purrr: functional programming tools for R with map functions, formula shortcuts for anonymous functions, and list manipulation
rvest 0.3.0 switches to xml2 for better performance and no memory leaks. html() becomes read_html(), html_tag() becomes html_name()
devtools 1.9.1 adds remote dependencies via DESCRIPTION's Remotes field, improved GitHub integration, and better revdep_check()
tidyr 0.3.0 adds fill() for carrying forward values, replace_na(), complete() for missing combinations, and unnest() for list columns
dplyr 0.4.3 fixes mutate() crashes, improves non-ASCII column support, shows column types when printing, and adds bind_rows(.id)
New R Markdown articles section launched with tips for Word output: styles, margins, tables, and bibliographies
Article spotlight: Dean Attali explains how to save Shiny app data to local files, databases, and cloud storage for persistence
RStudio joins the new R Consortium alongside Microsoft, Google, and Oracle to fund and inspire R's future development
d3heatmap creates interactive heat maps with D3.js: zoom by dragging, highlight rows/columns on click, hover to see values
DT brings DataTables to R: sortable, filterable, paginated HTML tables with column formatting and Shiny integration
Create interactive web maps in R with leaflet: markers, polygons, popups, GeoJSON support, and seamless Shiny integration
New free Shiny video tutorial (2.5 hours) and updated cheat sheet covering app architecture, reactivity, inputs, layouts, and CSS
