die on error! -- Alex

[rrdtool.git] / NEWS

diff --git a/NEWS b/NEWS
index 85f8ae7..9b0b480 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,18 +1,58 @@
 RRDTOOL NEWS
 ============
+Major Changes between 1.0.x and 1.2.x
 
-In this file I am noting the Major changes to rrdtool
-for details check the cvs ChangeLog
+Graphing
+--------
 
-2001/03/21 Tobias Oetiker <oetiker@ee.ethz.ch>
-  Added Aberrant Patch from Jake Brutlag <jakeb@microsoft.com>
-  From now one, new rrd files use version tag 0002. They can
-  NOT be read by the old 1.0.x rrdtools
+* rewritten graphics generation based on libart.
+  - anti-aliased output
+  - alpha transparency support
+  - truetype fonts
+ 
+* additional graphics formats: EPS, PDF, SVG
 
-  Jack:
-  Aberrant Behavior Detection support. A brief overview added to
-  rrdtool.pod.  Major updates to rrd_update.c, rrd_create.c. Minor update to
-  other core files.  Updated documentation: rrdcreate.pod, rrdgraph.pod,
-  rrdtune.pod.  This is backwards compatible!  See
-  http://cricket.sourceforge.net/aberrant/rrd_hw.htm
+* extended multi-part documentation
 
+* VDEF support; define and use variables.  Find, and use, the
+  maximum rate seen by rrdtool; compute and show the average
+
+* Sliding window (trend) analysis
+  Compute a smoother average, for instance over the last 6 CDPs
+
+* percentile (95th or other)
+  Remove peaks, 95 percent of all rates are at or below the
+  returned value
+
+Logging
+-------
+* a second logging interface: rrdtool updatev
+  Verbose updating of the database; show CPDs being created
+
+* Aberrant Behavior Detection with Holt-Winters Forecasting
+  Compare current data with expected data, detect and log when
+  the rates are outside expected levels
+
+* COMPUTE data type for artificial data-sources calculating their
+  input using RPN math and data from the other data-sources.
+ 
+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.
+
+Behind the Scenes
+-----------------
+* In order to support Holt-Winters and Calculated Datasources,
+  the rrdtool data format has changed. While the new version of rrdtool can
+  read files created with rrdtool 1.0.x. It is not possible to read files
+  created by rrdtool-1.2.x with rrdtool-1.0.x
+
+* External libraries are not included with rrdtool anymore. This is in line
+  with todays trend of using shared libraries everywhere. With the exception
+  of the cgi library most things required by rrdtool will be found on every recent
+  system.
+
+* Memory Mapped IO support for faster logging.