fixed 2. x-grid example ... since the lable is valid for the whole day, it must be...

[rrdtool.git] / NEWS

diff --git a/NEWS b/NEWS
index 8f2a878..32ff16e 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,58 @@
 RRDTOOL NEWS
 ============
+Major Changes between 1.2.x and 1.3.x
+
+see http://oss.oetiker.ch/rrdtool-trac/wiki/RRDtool13
+for up to date information
+
+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
+  scalability, much reduced memory-footprint and much less blocking on
+  disk
+* implemented optional full file-descriptor access instead of FILE* access
+
+Graphing (Tobi Oetiker)
+--------
+* libart has been replaced by cairo/pango
+* pango markup is supported
+* full gridfitting 
+* --graph-render-mode=mono for non antialiased graphing
+* --font-render-mode=mono for non antialiased fonts
+* fonts come through fontconfig, use the Pango fontnameing
+  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)
+* TEXTALIGN command to alter default text alignment behaviour
+* C API supports in-memory graphing with rrd_graph_in_memory (Evan Miller)
+* draw dashed lines in graphs (Thomas Gutzler)
+ 
+Forecasting (Evan Miller)
+-----------
+* the new MHWPREDICT consolidation function uses a variation of the Holt-Winters
+  method. It is a drop-in replacement for HWPREDICT, and is better suited for
+  data whose seasonal variations grow or shrink in proportion to the average.
+
+Misc
+----
+* ruby rrd_fetch will return step as a last property -- Mike Perham
+
+Incompatibility
+---------------
+* If you create an RRD with the new MHWPREDICT function, the resulting rrdfile will
+  be version 0004 and can only be used in rrdtool 1.3.
+
+Locale Independent Input
+------------------------
+* Regardles of locale you are in, rrdtool always expects input to be numbers (LC_NUMERIC)
+  in C or POSIX locale for numbers. (not 1,1 but 1.1) this is necessary to make
+  things like RPN work as it uses , as a separator.
+
+RRDTOOL NEWS
+============
 Major Changes between 1.0.x and 1.2.x
 
 Graphing
@@ -40,6 +93,13 @@ Incompatibilities
 -----------------
 * Colons in COMMENT arguments to rrdtool graph must be escaped with a backslash
 
+* the --alt-y-mrtg option is gone or rather since 1.2.7 it is back but
+  without functionality.
+
+* In pipe mode, rrdtool answers with OK only if it was successful with the
+  command. Otherwhise the answer will be ERROR...
+
+
 Behind the Scenes
 -----------------
 * In order to support Holt-Winters and Calculated Datasources,