OpenLaszlo 4.4 (Recommended Release forSWF8, SWF9, and DHTML Development)
OpenLaszlo
4.4 is the recommended platform for all application development
in the SWF8, SWF9, and DHTML runtimes. OpenLaszlo 4.4 addresses more than 400 issues
since the release of OpenLazlo 4.2, which introduced the performance gains of
the SWF9 runtime. Many of these improvements were in the area of DHTML support.
If you have a 4.2-based application or higher, you can simply start
using OpenLaszlo 4.4. However, if your application is based on an older version
of OpenLaszlo, then you must modify your code to take advantage of the
SWF9 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.
