Rumpel

New Features

• new datasource types: DCOUNTER and DDERIVE (they work the same as the
  original DS, except that they can deal with floatingpoint numbers).
• compile without graphics libraries: ./configure --disable-rrd_graph
• updated windows port (see WIN32-BUILD-TIPS.txt)
• single step RRAs for MIN,MAX,LAST are generated virtually from
  an AVERAGE RRA
• ignore updates in the past with rrdtool update --skip-past-updates
• ignore a LINE when scaling a chart using the skipscale option
• detect 32bit timeoverflows
• massive performance boost for charts with more than 100 DEF line by
  switching form a linear search to a HASH when searching for data
• improved cross compilation support
• .Net bindings
• allow rrdtool graph to silently skip non-existing source files using the
  --use-nan-for-all-missing-data option
• restore from a pipe (rrdtool restore - y.rrd)
• in rrdtool create, row count and step can be defined in absolute time
• all new "create on steroids" can pull both data and configuration from
  existing rrd files
• use rrdtool graph to chart arbitrary data via a callback function for data fetching
  support is integrated in the perl bindings.
• re-written parser for rrdtool graph commands. It now follows a simple key
  value pattern, compatible with the previous syntax.
• MEDIAN op for CDEF expressions
• DEPTH,INDEX,COPY,ROL ops for CDEF (as seen in PostScript)