OpenLaszlo 4.8.0 (Recommended Release for SWF8, SWF9, SWF10, and DHTML Development)
OpenLaszlo 4.8.0 is the recommended platform for all application development
in the SWF8, SWF9,SWF10, and DHTML runtimes. OpenLaszlo 4.8.0 is an incremental release of OpenLaszlo 4, and contains 152 bug fixes (see the JIRA report 4.8 Release Notes for details). There are a wide range of bug fixes, including CSS stylable canvas, more dynamic CSS support, the promotion of tooltip to an official component, improved drawview support, simpler association of CSS properties with attributes and an ability to provide a fallback value for CSS-styled attributes.
For those of you who have already upgraded your applications to OpenLaszlo 4.2 or higher, no further work is needed. You should just start using OpenLaszlo 4.8.0. However, if your application is based on an older version of OpenLaszlo, then you must modify your code to take advantage of the SWF9/10 performance gains and to meet the much stronger typing requirements that it mandates.
To migrate your 4.0.X or 4.1.1 applications, we
strongly suggest that you refer to this wiki page:
Runtime_Differences.
This page discusses the changes required by SWF9 and also provides a
methodology and conversion scripts to assist you in upgrading your application. It is very important that
you run the automated conversion scripts in the recommended order,
should you choose to take advantage of them.
OpenLaszlo Latest Nightly Builds
IDEforLaszlo Plugin for OpenLaszlo
A new update for IDE4Laszlo has been contributed to OpenLaszlo by Syte GMBH that
supports OpenLaszlo 4.0.10 and OpenLaszlo 3.4. The complete distribution packages and
Release Notes can be found here: http://www.syte.ch/en/laszlo.xml
Software Packaging Information
OpenLaszlo software is available for download in the following configurations. (Versions of the OpenLaszlo platform prior to OpenLaszlo 3.0 were called the Laszlo Presentation Server or LPS.)
- Development Kits for Windows, Mac, Linux, and Unix: These packages are binary distributions with installers for specific platforms and include the Tomcat 5.0.24 servlet container. Development kits also include the documentation, sample code, demonstrations, and Laszlo in 10 minutes tutorial code.
- Development Kit for Any OS: This package is a development kit without the Tomcat servlet container. Choose this package if you wish to deploy OpenLaszlo into an existing Java Application Server or in your own servlet container, such as IBM WebSphere or JBoss.
- Servlet Only: This package contains only the servlet, the smallest set of files required to deploy an OpenLaszlo application on any OS running Java. If you want a local copy of the documentation, including live examples, you should download one of the OS-specific
development distributions. When you are ready to deploy, you can do so using the servlet distribution.
- Source Code Distribution: This package provides all of the source code, docs, examples, and supporting collateral necessary to build OpenLaszlo. Use this distribution to extend OpenLaszlo, customize it for your application, and to contribute to the OpenLaszlo project.
OpenLaszlo (and previous LPS release versions 2.2 or higher) are released under the Common Public License (Version 1.0).
The third party software components that are distributed with OpenLaszlo (and LPS) are released under their own license terms and conditions. OpenLaszlo also provides system requirements and certified application server environments to ensure a successful deployment.
