Which version to use? 4.2? 4.5? 4.7?

In order to support the older blackberrys, you choose a quite old JDE. That's good, except that I can't find all the associated dates versions JDE. At least if there were dates, I could tell a user, your version is n months so we do not support this older version.

What is the release date on the versions?

Dates are not relevant. The version of the OS on the device is the key.

JDE 4.2.1 is a good basic version - this is the oldest operating system which is still on sale (AFAIK). A program compiled on this level is running on a device with 4.2, 4.3, 4.5, 4.6.

However, for 4.7, I would suggest a 2nd generation to cover the contact devices. While the 4.2 version wil run (in compatibility mode), your users don't want.

Tags: BlackBerry Developers

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