ip2region_private/CHANGES.md

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### 1.2
1. 新增分列式升级算法大大的增加了数据的准确率基本避免之前各大网友反馈的些许ip定位错误
2. 数据升级是2016/06/30版
3. 优化数据文件生成算法ip2region.db文件由原来的3.5M降为1.5M42亿个IP地址皆大欢喜啊
4. C/PHP/JAVA客户端增加纯内存搜索模式python, php扩展nodejs会在后续版本加上
说明因为数据文件只有1.5M对于PHP,java这类IO优化类语言提升速度不大C有一个数量级的提升