phpBB 3.1.9发布，更新缓存模式

phpBB 3.1.9 发布了，该版本主要是修改一些BUGS，在使用有可能最直接相关的应该算是缓存模式的调整。

phpBB是自由软件，也是开放源代码的网络论坛系统，使用PHP作为程式语言，并支持如MySQL、PostgreSQL、MSSQL、SQLite、Microsoft Access与Oracle等的资料库。

除去资料库支持上，以下为phpBB的几项优点：

• 使用样板系统设计可方便地快速修改

• 国际化并支持64种可用的语言翻译，可同时安装多套翻译

• 庞大且众多的网络论坛提供使用者自由交流与外挂软件的支援

以下是一些值得关注的内容：

• Respect X-Forwarded-Headers for upgrading non-SSL to SSL connection - Proxy's request to upgrade users to using SSL instead of non-SSL communication will be correctly respected (e.g. when using HAproxy). This requires default ports for SSL and can only be used for upgrading from non-SSL to SSL and not to downgrade from SSL to non-SSL.

• Disable sending headers - Extension authors can disable sending headers in the page_header() function and the controller helper's render() method

  
  

• Removed automatic approve of unapproved posts - Editing an unapproved post as a moderator will no longer automatically approve it.

• Email queue not cached by opcache - Email queue won't be cached by opcache anymore. This caused issues with dulicate emails.

• Correct column default in MSSQL - Database column default will no longer be incorrectly escaped in MSSQL (caused upgrade issues for 3.0.x to 3.1.x)

• Modified since for files served with download/file.php - The modified since header was not correctly served

• File update when using non-file based cache - Admins updating when using caches like memcache no longer see the comparing files page over and over again when looking at file changes

• Attachments display according to the correct BBCode ID - Attachments displayed now correctly correspond to the ones defined by the attachment BBCodes that were added using the frontend