但是如果你通过某些途径发布了这个修改版本，GPL要求你能够向程序的用户提供源代码，并且使用GPL授权。

But if you release the modified version to the public in some way, the GPL requires you to make the modified source code available to the program's users, under the GPL.

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为了用户和作者的利益，gnu通用公共授权要求软体被修改过的版本必须明确标示，从而避免它们的问题被错误地归咎于先前的版本。

For both users' and authors' sake, the GPL requires that modified versions be marked as changed, so that their problems will not be attributed erroneously to authors of previous versions.

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