Mathieu Trudel-Lapierre wrote:
> Having a new rrdtool and not lagging behind would be good, I think. I'll
> complete the bug on Monday when I am back home, we just need to list things
> from the upstream ChangeLog.

Here it is:


RRDtool 1.5.4 - 2015-08-09
==========================
Bug Fixes
---------
* parse floating point numbers according to C locale in rrdtool create
  arguments, regardles of the systems locale setting.
* include missing rrd_rados.h into distribution archive
* make rrdtool work on ARM again
* make rrdtool test suit pass on 32bit OSs
* fix --grid-dash option regression in graph
* fix systemd support
* fix link dependency for libpng since we are using functions directly
* fix python modulename
* fix rrdtool tune to accept U in minimum and maximum options
* fi
* rrd_parsetime now uses a mutex lock to become threadsafe
* rrd_xport is now threadsafe
* stop using MAX_PATH and make everything dynamic and make rrdtool work on
  Gnu HURD ... thanks nirgal!

Features
--------
* new RPN operators: STEPWIDTH, NEWDAY, NEWWEEK, NEWMONTH and NEWWEEK
  together they allow to draw graphs where a rate is converted back to
  absolute numbers and accumulated over a periode.


RRDtool 1.5.3 - 2015-04-30
==========================
Bug Fixes
---------
* Brought commmand-line options and documentation back into sync.
* Make LINE dashes option work again

RRDtool 1.5.2 - 2015-04-23
==========================
Bug Fixes
---------
* paramters in VDEF are vnames and not data source names, hence
  they can be 255 chars long and not only 20

RRDtool 1.5.1 - 2015-04-22
==========================
Bug Fixes
---------
* parse numbers up to 40 characters long ..
* fix install rules for Python and Lua
* include missing VERSION and LICENSE file
* unlink before rename in rrd_create when running on WIN32

RRDtool 1.5.0 - 2015-04-16
==========================

New Features
------------
* automatic x-axis labels that work from 1s to 30y on a single chart
* librados integration
* 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)
* gradient AREA backgrounds
* no more locale magic while reading numeric data.

Bugfixes
--------
all the bugs fixed in 1.4.x during 1.5 development

RRDtool 1.4.9 - 2014-09-29
==========================

New Features
------------
* allows rrdrestore to read input from stdin
* add documentation for RRDs::xport
* RPN operators MINNAN and MAXNAN
* --left-axis-format option to rrd_graph

Bugfixes
--------
* properly verify validity of user suplied format strings
* remove graph functions from python module when compiled without graphing
  support
* verify that only short integers are used in COMPUTE rpn expressions
* eliminate duplicate setlocale calls
* fixed endless loop and double frees in rrd_restore
* fixed missing variable initializations in rrd_graph
* fixed JSON output format to actually be valid JSON
* detect failing fallocate and fall back to seeking
* fixed format string in ruby bindings

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https://bugs.launchpad.net/bugs/1486865

Title:
  Sync rrdtool 1.5.4-5 (main) from Debian unstable (main)

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