2010-01-20 QOS.ch web-site redesigned
Our web-site has been redesigned. In the process, we migrated from Apache Struts 1 to Apache Wicket.

2009-10-14 Mistletoe project launched
QOS.ch launches the Mistletoe project, a junit extension for integration testing.

2009-08-23 CAL10N project launched
QOS.ch launches the CAL10N (Compiler Assisted Localization) project, a java library for writing localized (internationalized) messages.

2008-02-26 SLF4J version 1.5.0 released
QOS.ch releases SLF4J version 1.5.0 of the widely-used SLF4J logging library. This version includes SLF4J Migrator helping you migrate your project using JCL or log4j to use SLF4J instead.

2007-05-15 SLF4J version 1.4.0 released
QOS.ch releases SLF4J version 1.4.0 of the widely-used SLF4J logging library. In response to repeated user requests , this release adds the TRACE level to org.slf4j.Logger interface.

2006-05 Consulting work at Lombard Odier Darier Hentsch
Built a monitoring framework for checking the status of in-house applications. In addition, a mission-critical security system was developped over a two year period.

2006-03-08 SLF4J version 1.0 (final) finally released
After 11 months of gestation, SLF4J version 1.0 (final) is finally out the door. For those who have not heard of it, SLF4J (Simple Logging Facade for Java) acts as a facade for various logging APIs allowing to the end-user to plug in the desired implementation at deployment time. A gradual migration path away from Jakarta Commons Logging (JCL) is also supported.

2006-02-20 logback project announced
The logback is announced as a potential successor to log4j.

2006-01-16 QOS.ch supplies local newspaper with Sudoku puzzles
QOS.ch is honored to be associated with "Le Matin", a local newspaper, in publising Sudoku puzzles generated by Sudoku-Grok, a web-application developed at QOS.ch.

2005-10-31 QOS.ch releases Sudoku-Grok
QOS.ch releases the Sudoku-Grok web-application in English, French and Spanish, other languages to follow. Sudoku-Grok helps players in solving puzzles and to improve their playing skills.

2005-08-12 Release of SLF4J 1.0beta5
SLF4J.ORG releases SLF4J 1.0-beta5 and NLOG4J 1.2.15, adding support for the Marker interface. Thus, log statements can be decorated with Marker data allowing more expressive power in the processing of log statements.

2005-04-14 Launch of the SLF4J project
The Simple Logging Facade for Java or (SLF4J) is intended to serve as a simple facade for various logging APIs allowing to the end-user to plug in the desired implementation at deployment time.

2005-01-20 EBallot3 voting application put into production
The EBallot3 application is put into production. Thanks to its careful design, the new application is expected to significantly reduce maintenance costs.

2004-10-19 "The complete log4j manual" is now available in PDF format
Customers may now purchase the PDF version of "The complete log4j manual" from our web site. We have also added a new option to subscribe to all future editions for a period of 12 months.

2004-06-10 "The complete log4j manual" is out of print
The second print of "the complete log4j manual" is sold out as well.

2004-06-01 EBallot 3 voting application enters beta stage
The new voting platform of The International Organisaton for Standardization (ISO) has reached beta stage in less than three months of development undertaken by a very small team of software engineers.

2003-09-01 Reprint of "The complete log4j manual"
Given the depletion of the initial print of "the complete log4j manual" within 6 months, QOS.ch reprints this popular title.

2003-08-01 QOS.ch moves
QOS.ch moves to spacious offices in Lausanne, Switzerland.

2003-06-04 Partnership with Softpro Books, USA
QOS.ch partners with Softpro Books USA, an independent computer bookstore with a wide selection of the best computer books.

2003-06-04 Partnership with BuchZentrum AG, Switzerland
"The complete log4j manual" is now available in all bookshops in Switzerland thanks to our partnership with BuchZentrum AG, the largest distributor in the country.

2003-04-30 PRIORITY mode only shipping
To better serve our customers QOS.ch will now only ship packages in PRIORITY mode, thus significantly improving delivery times.

2003-04-29 COMPUTER BOOKSHOPS LTD becomes UK distributor
Computer Bookshops Ltd. becomes the UK distributor of "The complete log4j manual" allowing the title to be more readily accessible readers in the UK.

2003-03-17 Reduced international shipping fees
QOS.ch offers reduced shipping fees for "The complete log4j manual" to Europe and North America.

2003-02-21 The log4j complete manual available in print
QOS.ch releases "the complete log4j manual" in print. This manual, written by by Ceki Gülcü, documents the popular log4j loggging framework.

2003-02-10 New web-site
QOS.ch releases new web-site developpped using best-of-breed open-source technology, including Apache Ant, Apache Tomcat, Struts, hibernate and of course log4j.