雖然現在程式碼管理已經以 Git 為主了，不過偶爾需要維護一些舊案子還是會用 SVN，懶得轉了。
Mac OS 本身有內建 SVN，不過卻是 1.6 版，最近修改一個舊案子就有碰到 project 已經升 1.7，Versions 和 SmartSVN 也用 1.7，唯獨 Terminal 下的 command line 卻是 1.6 的窘境。所以想說來更新一下好了，用最簡單的方法。
先到 http://www.wandisco.com/subversion/download 下載 for Mac OS 的 SVN，目前最新的版本為 Subversion 1.7.16 for OSX 10.8.x。 接著依一般 App 安裝方式進行，預設安裝路徑為 /opt/subversion。
接著在 Terminal 輸入 export PATH=/opt/subversion/bin:$PATH 來變更系統路徑。醬醬，完成。
可以用 svn --version 來看版本號碼。
Post-Installation Notes
You have successfully installed the Subversion 1.9.4 universal binary for OS X El Capitan (10.11). Please remember to prepend /opt/subversion/bin to your PATH environment variable. This can be done a multitude of ways but an easy one is to add the following to the end of ~/.profile:
export PATH=/opt/subversion/bin:$PATH
If you plan on running an Apache-based Subversion server, you will also need to prepend the DYLD_LIBRARY_PATH variable in /usr/sbin/envvars with /opt/subversion/lib so that the Subversion libraries shipped with this binary are used instead of those supplied by the operating system. Here is an example snippet of what /usr/sbin/envvars might look like after making these changes:
...
DYLD_LIBRARY_PATH="/opt/subversion/lib:/usr/lib:$DYLD_LIBRARY_PATH"
...
You will also need to update the SSL portion of your httpd.conf if you're using SSL:
SSLProtocol ALL -SSLv2 -TLSv1
What this does is disable SSL v2 and TLS which would force SSLv3. The reason for this is to work around a bug in the OpenSSL library shipped with OS X.
These packages are provided by WANdisco (http://www.wandisco.com). If you wish to get help or provided feedback, please email opensource@wandisco.com.