
Older project files should first be opened and saved in iTrain 4.1 before opening them in iTrain 5.x. After installing version 5.x you first have to enter the new license key for version 5 before you open the project file that you used in 4.1. That means that people who have bought a 4.x license have to buy an upgrade to be able to switch. It is recommended to always check the forum announcements before installing a new upgrade. These steps are described in the announcements on the iTrain forum. Without these steps your current project will not behave correctly.

When moving to version 5 a few manual steps are necessary. It is recommended to read the following to ensure proper installation. for early versions of Fiji, and other miscellany.The downloads can be found on the right side.Just prior to extensive changes reconciling Fiji with ImageJ2. Just prior to some big changes to ImageJ2 under the hood. Just prior to a big update to facilitate reproducible builds. Just prior to starting the transition to Java 8. The final version of Fiji using Java 6, for all platforms. Here are Life-Line versions from before Fiji switched to Java 8. Just prior to a sweeping update to nearly all components. Here are Life-Line versions of Fiji created after the switch to Java 8.

The idea is that if something goes horribly wrong, you can fall back to a stable version. This sections offers older downloads of Fiji, preserved just prior to introducing major changes. You can download previous Fiji builds by date stamp from the archive. See the source code page for details on obtaining the Fiji source code.
