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Thoughts about Dual-licensing Open Source software

Aug 07, 2009, 04:33 (2 Talkback[s])
(Other stories by Michael Widenius)


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"I was recently made aware that the above is no longer the case with the standard MySQL OEM agreement. Sun is now, by default, putting the following limitations on their licensees:

"You cannot modify MySQL in any way (for example to fix bugs, optimise MySQL for your applications, include publicly available enhancements (such as the BSD licensed "Google patch" or compile it with another storage engine) to improve your MySQL as part of your product.

"You cannot use any forks of MySQL (such as Drizzle, ExtSQL or MariaDB).

"You are tied in to the current major release of MySQL enterprise (i.e. you have to pay for upgrades). This may be normal in a closed source environment, but not normal when it comes to Open Source.

"There are serious limitations for what kind of applications you can build with the MySQL code..."

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