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From Yegor Kozlov <ye...@apache.org>
Subject [ANNOUNCE] Apache POI 3.6 released
Date Wed, 16 Dec 2009 07:22:52 GMT
The Apache POI is pleased to announce the release of POI 3.6. Featured are significant performance
improvements and
numerous bug fixes.

See the downloads page for binary and source distributions: http://poi.apache.org/download.html

Release Notes

The most notable changes in this release are:

*  A "lite" version of ooxml-schemas-1.0.jar called poi-ooxml-schemas-3.6-20091214.jar is
included in the binary
distribution. This jar replaces the big ooxml-schemas-1.0.jar in the binary distributions
and Maven POMs. The 
poi-ooxml-schemas jar is 10 MB smaller!

* Significant memory improvements in XSSF module. When generating data, new code consumes
200% less memory than POI-3.5.

* Full support for cell comments in XSSF.

* Formula performance and coverage.
  Lazy evaluation of formulas has been implemented which provides for improvements of 700%
in some cases.
  Your results may vary.

* Examples are now included.
  poi-examples-3.6-20091214.jar includes all of the examples from the poi, poi-scratchpad
and poi-ooxml modules.
  Users have requested this several times.  These examples provide excellent templates for
POI based applications.
  Several convertors are included: XLSX2CSV, XLS2CSVmra, BigGridDemo, PPT2PNG, Word2Forrest,
and msg2txt.

* Maven distribution now includes sources.
Each individual JAR is accompanied by a -sources.jar. Two new maven modules were added poi-ooxml-schemas
and poi-examples.

* Program elements intended for POI internal use only are annotated @Internal.
These may be removed or access changed from 'public' to 'default' or less in future versions
of POI.

A full list of changes is available in the change log: http://poi.apache.org/changes.html.
People interested should also follow the dev mailing list to track further progress.

Release Contents

This release comes in two forms:
  - pre-built binaries containing compiled versions of all Apache POI components and documentation
    (poi-bin-3.6-20091214.zip or poi-bin-3.6-20091214.tar.gz)
  - source archive you can build POI from (poi-src-3.6-20091214.zip or poi-src-3.6-20091214.tar.gz)
   Unpack the archive and use  the following command to build all POI components with Apache
Ant 1.6+ and JDK 1.5 or higher:

   ant jar

  Pre-built versions of all POI components are also available in the central Maven repository
  under Group ID "org.apache.poi" and Version "3.6"

All release artifacts are accompanied by MD5 checksums and a PGP signatures
that you can use to verify the authenticity of your download.
The public key used for the PGP signature can be found at


The following people have contributed to this release by submitting bug
reports or by participating in the issue resolution process (in strict alphabetical order).

Bernhard Schwager         Ian Beaumont                Maxim Valyanskiy
Bob Stox                  Jeremy Michelson            Paul Tomlin
Bruno Girin               Jeff Lamb                   Petr Udalau
Chris Lott                Joubert Nel                 Robert Longson
Dale Monti                Karl Eilebrecht             Robin Salkeld
Daniel Noll (Trejkaz)     Leonhard Wimmer             Thang Nguyen
David Agnew               Mads Mohr Christensen       Vinu Kumar
David Horwitz             Markus Herven
Davor Cubranic            Marcus Thiesen
Eric Smith                Martin Poelman

Thank you all very much! Contributions are always welcome, come join the project.

About Apache POI

Apache POI is well-known in the Java field as a library for reading and
writing Microsoft Office file formats, such as Excel, PowerPoint, Visio and
Word. Since POI 3.5, the new OOXML (Office Open XML) formats introduced in Office 2007 have
been supported.
See http://poi.apache.org/ for more details

For the Apache POI Team
Yegor Kozlov

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