StoneVPN 是一个用来简化 OpenVPN 服务器的证书和配置文件的工具，支持 Windows 和 Linux 两个系统的用户配置生成。它可以将这些文件打包并通过email发送个用户。StoneVPN 使用的是 pyOpenSSL 来创建证书文件。
Changes:
1. A method for generating config files for all OSs at once was added.
2. An option to include extra files (eg. documentation) was added.
3. The passphrase can now be specified on the command line.
4. Better handling of incorrect variables in the OpenSSL configuration file was implemented.
5. Mac support was enhanced.
6. Serial numbers are now correctly written to the OpenSSL serial file
