plyr 1.8.9

• Fixes for R CMD check

plyr 1.8.8

• Update so R CMD check passes cleanly in future R-devel.

plyr 1.8.7

• Update so R CMD check passes cleanly in future R-devel.

plyr 1.8.6

• Update so R CMD check passes cleanly on R and R-devel.

plyr 1.8.5

• Update so R CMD check passes cleanly on R and R-devel.

plyr 1.8.4

• Update so R CMD check passes cleanly on R and R-devel.

plyr 1.8.3

• Revert to C version of loop_apply() as Rcpp version was appears to be
  having PROTECTion problems. (Also fixes #256)

plyr 1.8.2

• Update for changes in R namespace best-practices.
• New parameter .id to adply() that specifies the name(s) of the index column(s). (Thanks to Kirill Müller, #191)
• Fix bug in split_indices() when n isn't supplied.
• Fix bug in .id parameter to ldply() and rdply() allowing for .id = NULL to work as described in the help. (Thanks to Doug Mitarotonda, #207, and Marek, #224 and #225)
• Deprecate exotic functions liply() and isplit2(), remove unused and unexported functions dots() and parallel_fe() (Thanks to Kirill Müller, #242, #248)
• Warn on duplicate names that cause certain array functions to fail. (Thanks to Kirill Müller, #211)
• Parameter .inform is now honored for ?_ply() calls. (Thanks to Kirill Müller, #209)

Plyr 1.8.1

• New parameter .id to ldply() and rdply() that specifies the name of
  the index column. (Thanks to Kirill Müller, #107, #140, #142)
• New parameter .id to rdply() that specifies the name of the index
  column. (Thanks to Kirill Müller, #142)
• The .id column in ldply() is generated as a factor to preserve
  the sort order, but only if the new .id parameter is set. (Thanks to Kirill
  Müller, #137)
• rbind.fill now silently drops NULL inputs (#138)
• rbind.fill avoids array copying which had produced quadratic time
  complexity. *dply of large numbers of groups should be faster.
  (Contributed by Peter Meilstrup)
• rbind.fill handles non-numeric matrix columns (i.e. factor arrays,
  character arrays, list arrays); also arrays with more than 2
  dimensions can be used. Dimnames of array columns are now preserved.
  (Contributed by Peter Meilstrup)
• rbind.fill(x,y) converts factor columns of Y to character when
  columns of X are character. join(x,y) and match_df(x,y) now work
  when the key column in X is character and Y is factor. (Contributed
  by Peter Meilstrup)
• Fix faulty array allocation which caused problems when using split_indices
  with large (> 2^24) vectors. (Fixes #131)
• list_to_array() incorrectly determined dimensions if column of labels
  contained any missing values (#169).
• r*ply expression is evaluated exactly .n times, evaluation results are
  consistent with side effects. (#158, thanks to Kirill Müller)