Reshape 0.8.2 (2008-11-04) --------------------------

  * fixed bug where missing fill values where not getting correctly filled

  * fill value defaults to fun.aggregate applied to zero-length vector.  This produces better values in a wide variety of situations, for example missings will be filled with 0's when length or sum is used.  This may require setting fill = NA for aggregation functions that previously return NA, like sd and var.


Reshape 0.8.1 (2008-05-01) --------------------------
  
Melt

  * character dimension names are processed by type.convert
  * by default, treat character and factor variables as id variables (i.e. integer variables no longer default to being id vars)
  * ... now passed on to melt in melt.list (thanks to Charles Naylor)

Cast

  * missing values in subsetting are now correctly dropped to match behaviour of subset()
  * tweaks to cast and recast to make it easier to pass in formulas created elsewhere
  * allow user to specify column used for values, guessing if necessary, and giving a warning message if value column does not exist
  * improve error messages when melt or casting parameters incorrectly specified 

General

  * now depends on the new plyr package for many of the workhorse functions