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Index: trunk/NEWS
===================================================================
--- trunk/NEWS (revision 213)
+++ trunk/NEWS (revision 214)
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This file contains the history of SISCone releases. For each of the,
we give a short summary of the important changes from the previous
version. If you want to see a more detailed list of changes, please
read the ChangeLog file.
-SISCone version 1.4.1devel (svn trunk)
-==========================
+SISCone version 1.4.0-devel (svn trunk)
+===========================
IMPORTANT MODIFICATIONS THAT CAN BREAK BACKWARD COMPATIBILITY:
* VERSION and PROGRAM (or PACKAGE_NAME) are no longer accessible
directly because of potential conflicts with other pckages.
You should use siscone_version() and siscone_package_name()
instead. (Thanks to Rolf Seuster)
other changes:
* Added a flag (Csiscone::use_pt_weighted_splitting) to allow using
the anti-kt distance instead of the plain one in protojet splitting
(this tend to produce more circular jets).
SISCone version 1.3.1 (Mar 2008)
=====================
* fixed some compilation issues under windows
SISCone version 1.3.0 (Nov 2007)
=====================
* The main update in this new release is the switch to
'autotools'. This means that instead of using the (static) Makefile
build process, you can now use the "standard ./configure; make; make
install" approach. See the INSTALL file for details.
* added a 'siscone_area' example of how jet areas work within SISCone.
SISCone version 1.2.0 (Jun 2007)
=====================
* 10-15% speed increase by introducing a tiling in the eta-phi plane
allowing for better overlap checking in the split--merge. This can
turn into a bigger effect for area computations.
* implementing a 'jet area' class to compute active and/or passive
areas.
* in examples:
- fix bug in the cmdline parsing (there was a segfault with
unrecognised long options),
- add "passes information" to the verbose output of the main siscone
program,
- solve problems with the 'time' example.
SISCone version 1.1.1 (Mar 2007)
=====================
* The major upgrade is the use of pttilde (p-scheme pt) instead
of mt in the split--merge process. Indeed, we have noticed
that mt can lead to IR usafety in the case of two back-to-back
narrow-decay-width unstable particles (e.g. a pair of Higgs bosons).
See http://projects.hepforge.org/siscone/sm_issue.html for details.
Note that SISCone 1.1.1 allows the user to specify its choice for
the split-merge variable (we highly recommand the default choice)
* The number of passes is now set to infinity (0) by default
* Small minor changes in the 'siscone' command-line options
SISCone version 1.1.0 (Mar 2007)
=====================
* dealt with colinearity issues
* dealt with cocircularity situations (and related rounding errors)
* use mt instead of pt in the split-merge
pt lead to some IR unsafety for events with momentum conservation
* move all references to HEPForge
* Important note: some typos have been fixed. As a consequence, some
end-user members have been affected:
- The contents of the jets is accessed through 'Cjet::contents'
instead of 'Cjet::content'
- The function called to save the jet contents to disk is
'Csplit_merge::save_contents' instead of 'Csplit_merge::save_content'
Note that 'Csiscone::save_contents' is also valid.
SISCone version 1.0.0 (Jan 2007)
=====================
This is the first stable release of siscone.

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