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+version 1.5.2:
+(THIS VERSION IS IN DEVEL AND CAN BE CHANGED AT ANY TIME)
+- improve description of inbetween warmup and contest in ADMIN.txt
+- fix a bug that could allow an user to change their username
+- creation of an APACHE.txt doc about setting up apache configuration
+- force source files to have no spaces (warn a message in case they have)
+
+version 1.5.1:
+2012/10/20:
+- (ICPC Linux) fixed logging in issue after cleandisk.sh
+- (ICPC Linux) inclusion of some (new) suggested packages and links
+- updated safeexec (there was a timing issue between time-limit and run-time-error)
+- updated installboca.sh to account for different install directories
+- fix bug with the option that teams can't change their password. This was causing login problems.
+
+version 1.5.0:
+2012/08/24
+- (ICPC Linux) updated scripts to create ICPC linux under ubuntu
+   12.04. Hopefully it will still work with older versions of ubuntu.
+- (ICPC Linux) java version now is openjdk6 (it is getting harder to
+   keep using sun java on new linux distributions) 
+- Problems in BOCA are now defined by a problem package in ZIP format,
+   which can be encrypted.
+- private/score.sep file now allows also the specification of by-user
+   and by-site scoretables.
+- admin password need to change other users' passwords.
+- option to import users using the ICPC webpage formats (.tab and .tsv).
+- multi-site re-included in the system, with a centralized idea (one
+   main server and many local servers that connect to it). The
+   connection is done (encryptedly) via http and is handled by a new type of
+   user named type "site". 
+- main site can provide redundancy in case of failure, as it has a
+   copy of everything.
+- autojudging scheme has been improved, specially in terms of
+   safety. Scripts to judge are now inside the problem package.
+- examples of problem packages are included in doc/problemexamples/
+- option to delete and undelete problems included, so one can setup
+   the warmup and contest with all problems, delete some, undelete later.
+- bug fix in updating time of contest and sites (updating contest
+   didn't update sites).
+- options to insert keys and password in the tab contest in order to
+   unlock problems in case they are encrypted.
+- documentation files updated.
+
+version 1.4.2:
+2011/11/04
+- user type site created to allow for pushing of scores from other sites
+- createdb.php moved to private/ for better safety. Option to abort its execution is included.
+- autojudging.php moved to private/ for better safety
+- possibility of multiple scores defined by the private/score.sep file
+- fix of setup.sh and rc.local scripts to properly set firewall rules (thanks Flavio GC Rocha).
+  Also some other minor script changes, such as /etc/network/if-pre-up.d/boca
+- script that creates the bocajail changed to /etc/icpc/createbocajail.sh and some
+  improvements are applied (e.g. use of debootstrap). It should now run smoother on 
+  ubuntu and other debian-like systems.
+- bugfix: general clarification option was not appearing in the list of problems.
+- scripts have been updated to make it easy to replace the use of user 'www-data' by 'apache'.
+- updatescores.sh now accepts full path names for servers. This solves the case where boca
+  is not installed in the default http://SERVER/boca/
+- updatescores.sh now gets all the available information about the score of the other sites, and 
+  the local boca server decides which info shall be put in the score board. This fixes issues with
+  displaying undesired info from other sites, because the responsability is given to local boca.
+- webcast directory for F. D. Moreira's fancy score included in the distro.
+
+version 1.4.1:
+2011/10/10
+- special chars and character encoding included as utf-8 in every page. This shall fix the
+  bug of dealing with special chars.
+- bug fix: max length of clars fixed.
+- bug fix: teams could not download their submitted code.
+- many changes to improve security of safeexec (including possibility of chrooting)
+- changes to improve security of conf.php
+- changes to make php configuration directly on .htaccess file of the boca folder
+- new feature: speed improvement by caching run.php of teams 
+- new feature: speed improvement by caching scores of all users
+- new feature: scores can be read from files, which can be updated from other servers by a script
+- new feature: chief judge is introduced (configured at admin/site.php) and each run has to be
+  judged by two judges. In case of disagreement, chief judge or admin has to act.
+- new feature: judges can submit code to the system (even before the competition is running).
+- new feature: admin and chief judge can open multiple runs to re-judge at once in the same screen.
+- scripts to run code at doc/bits/ updated to cope with new safeexec and possible chrooting
+- directory doc/tools/ moved to tools/
+- directory doc/bits/ reorganized
+- development of install scripts and config files for making ubuntu/xubuntu be ready for running
+  a competition are included in tools/
+- simple html versions of manuals for teams and judges included in doc/html/
+
+version 1.4.0:
+2009/08/31
+- safeexec updated to include option of multiple runs of the same code (e.g. for averaging the time).
+
+version 1.3.2:
+2008/08/31
+- bug fix: div by zero at history of judges (thanks to Marcelo Cezar Pinto).
+- standard encoding changed to UTF8 to facilitate the installation on debian/ubuntu systems.
+- scripts to compile/execute runs changed to user nobody and group nogroup to fix a warning.
+
+version 1.3.1:
+2008/08/19
+- bug fix: filenames with spaces were not properly handled by filewindow.php and filedownload.php
+- delete functions of languages, problems and answers are replaced by nicer versions where the runs
+  are kept in the system (Thanks to Renato Lucindo :).
+- openrun feature now does not make the run completely reopened (the teams keep seeing the already
+  judged results, while the runs are rejudged. If a change is performed, then the new status is seen.
+- autojudging procedure now keeps a copy of input and output files in the local filesystem, so the
+  network and DB accesses are reduced (Thanks to huge files of Wanderley Guimaraes :).
+- bug fix: autojudging was not removing old directories, so that was taking extra space on disk. I
+  do not know if this was a bug or a feature.
+- script makebkp.sh added to connect to BOCA by http and send source files.
+
+version 1.3.0:
+2008/08/12
+- new backup feature. Teams can submit files to the server to keep them there. This is going to
+  replace the network mounted homes of Maratona Linux.
+
+version 1.2.3:
+2007/08/25
+- php tag <? changed to <?php in all files for better compatibility (Thanks to Joel Uchoa).
+
+version 1.2.2:
+2007/08/22
+- bug fix: (Thanks to Fabio D. Moreira) when installing on root directory,
+  global path variables had an extra '/', leading to problems with browsers.
+
+version 1.2.1:
+2007/08/21
+- new md5sum check while importing files in "systems" interface.
+- bug fix: autojudge WHI didnt work. It is still experimental.
+
+version 1.2.0:
+2007/08/20
+- bug fix: tie rule now includes the first accepted run.
+- bug fix: names with spaces would create problems to bash scripts.
+- scoreboard improved. New level (4) has many ideas introduced
+  during ICPC world finals 2007.
+- judge's history now is complete: it has all clars and runs.
+- autojudging and scripts modified so as to send diff outputs to judges.
+- autojudging and related procedures updated to allow automatic
+  judging without human interaction (WHI).
+- documentation updated to agree with system improvements.
+
+version 1.1.2:
+2006/09/16
+- bug fix: extra empty line removed when donwloading files.
+
+version 1.1.1:
+2006/08/21
+- bug fix: wrong variable name in DBUpdateTask.
+- bug fix: admin calls DBChiefUpdateTask instead of DBUpdateTask.
+- bug fix: send only one balloon per problem.
+- textarea for showing clarifications.
+
+version 1.1.0:
+2006/07/31
+- documentation atualization.
+- new problem attributes: color and colorname.
+- new balloon images and graphics.
+- new feature to stop and start the contest several times.
+- report page implementation.
+- new feature to order runs (on admin's interface) as desired.
+- new feature to order clarifications (on admin's interface) as desired.
+- new feature to order tasks (on admin's interface) as desired.
+- html tag <pre></pre> defined for showing clarifications.
+- bug fix: some http headers could not be sent because of misplaced 
+  output buffering. This was implying in some "session expired" messages.
+
+version 1.0.6:
+2005/09/04
+- bug fix: special characters in problem names.
+
+version 1.0.5:
+2004/10/06
+- included timelimit field for problems.
+
+version 1.0.4:
+2004/08/19
+- bug fix: in the task window, the file to print was unavailable.
+- new button to view the file before printing.
+- Pascal (Free Pascal Compiler) included in the run.sh example.
+- run.sh improved to better detect errors
+- autojudging small text changes
+
+version 1.0.3:
+2004/06/18
+- bug fix: incorrect report of new balloons to staff.
+- documentation changes concerning autojugding.
+- changes on limit clauses for compatibility with postgres 7.1.x/php 4.1.x.
+
+version 1.0.2:
+2004/06/05
+- bug fix: problem to drop the database when it does not exist.
+- bug fix: duplicating new contests using mozilla browser.
+- changes on file permissions inside the tarball.
+
+version 1.0.1:
+2004/05/09
+- first public release. In 2003, boca 0.5 was used.