升級到 WordPress 2.5 的注意事項

剛剛幫別人升級時注意到的，wp-config.php 裡有一段註解是要你設定 SECRET_KEY，看起來是為了當作 private secret 用：

// Change SECRET_KEY to a unique phrase.  You won't have to remember it later,
// so make it long and complicated.  You can visit https://www.grc.com/passwords.htm
// to get a phrase generated for you, or just make something up.

設完後會需要重新登入 WordPress。