站长百科 | 数字化技能提升教程 数字化时代生存宝典 
昨日在互联网上的mysql授权许可证变更事件，使得广大开源爱好者纷纷吐槽，手册修改授权许可证，是从 MySQL 5.5.30 到 5.5.31 时做的改动，该改动影响源码包中的 man 文件夹里的所有页面。此举明显的显示出 Oracle 非常不友善的行为。新的许可证跟 GPL 差别巨大，并且明确表达不再使用 GPL 许可证。
老的手册遵循 GPLv2 许可证(MySQL 5.5.30 或者更早版本)：
This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License.
而新的手册页面(MySQL 5.5.31 或者更新版本)则采用如下授权协议：
This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited.
就在今日，相关方面称，这其实是一个bug，构建系统在打包时抓取了错误的授权声明文件，该bug存在于最新版的5.1、5.5、5.6和5.7中，开发者表示他们将会修正该bug，并尽快发布新版本。
来源：站长百科
