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Applets & JVM versions, Rules Roundup, etc.

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I just discovered this while playing with the Rules Roundup, but I'm really asking because I'm curious. The RR wants plugin version 1.3, and I use 1.4. I don't understand why this is an issue. Aren't the JVMs supposed to be backward compatible? IOW, shouldn't an applet developed for 1.3 (or 1.2, or 1.1) work fine with 1.4? If not, then why? Also -- if this is an issue, which JVM should I be developing for? That's my main concern. It might be OK to ask users to upgrade to the latest plugin, but asking them to "downgrade" or backtrack seems unacceptable. Again, I'm not making an issue of the RR, I just want to know, as a developer.
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It should work with the 1.4 plug-in. It does on my machine. I've never been asked to go back and reinstall the 1.3 plug-in when I play it.

By the way, are you talking about the Beta version or the older version?

As a developer, you can force one particular version or you can accept any version that is greater than a particular version (via the html page that contains the applet) depending on what you put on the html page that calls the applet.

The page that the Beta Rules Roundup game is on expects at least the 1.3 version of the plug-in, but will (should) work with any version that is higher as well.
[ November 19, 2002: Message edited by: Marilyn de Queiroz ]
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