see http://oss.oetiker.ch/rrdtool-trac/wiki/RRDtool13
for up to date information
-File access methods
+File access methods (Bernhard Fischer)
-------------------
* introduced file-accessor functions rrd_read/rrd_seek/rrd_write
* implemented full mmap-based file access with madvise hints for improved
disk
* implemented optional full file-descriptor access instead of FILE* access
-Graphing
+Graphing (Tobi Oetiker)
--------
* libart has been replaced by cairo/pango
* pango markup is supported
scheme -> 'Times 20' ... it is not possible to use
truetype fonts directly anymore.
* Tabs are position independent.
+* TRENDNAN filter that ignores NAN values while caculating the TREND data. (Timo Stripf)
+* --full-size-mode to specify the outer border of the image and not just of the graphing canvas (Matthew Chambers)
RRDTOOL NEWS
============