Nâng cấp web applications thật phiền toái nhưng điều đó không đúng với người dùng WordPress bởi vì với InstantUpgrade plugin, bạn có thể dễ dàng nâng cấp WordPress một cách an toàn và tự động với một vài cú click chuột.

Hoạt động?

Tải InstantUpgrade plugin phiên bản mới nhất từ WordPress và giải nén nó lên server của bạn.

Bước tiếp theo, plugin sẽ xóa toàn bộ các file WordPress cũ(trừ thư mục wp-content/ và wp-config.php) và đặt các tệp mới vào thư mục WordPress.

Cuối cùng nó chạy script nâng cấp database. That procedure is exactly what the official guide proposes, only 30 times faster and with you leaning back.

Is it safe to use?

Yes. The plugin interfaces are very intuitive, everything is well explained. Before the upgrade process, comprehensive checks are performed to ensure that nothing can be broken. As for security: The plugin cannot do anything that you or your webserver couldn’t do anyway. So, yes, it is safe to use. (However, bad things can *always* happen, so you should always have backups of your database and files.)

Overview

• Installation
• HTTP vs. FTP
• Screenshots
• Translations
• What else?

Installation

• Download it.
• Unpack it and upload it into your WordPress plugins folder.
• Activate the plugin in your admin panel.
• Go to Options » InstantUpgrade and pick an upgrade method. FTP is usually recommended. See below for more about HTTP/FTP.
• When the plugin says that you’re ready to upgrade, go to Manage » InstantUpgrade and start the upgrade process. The interface should be self-explanatory.

Upgrading from an older version

Although there is nothing specifially wrong with earlier versions, you might want to upgrade to the latest version. If you are upgrading from v0.2 or earlier to v1.0 or later, first open the file legacy/chmod.php in a text editor, read the instructions and follow them. Then delete the old plugin directory and proceed with a new Installation.

HTTP vs. FTP

InstantUpgrade offers two different methods for replacing your WordPress files: HTTP and FTP. With HTTP, the webserver will delete and insert all files. This works only on a small part of the web hosts, because usually the webserver and you (i.e. FTP user) are two different system users who are not allowed to modify each other’s files.

For you this means that if you select HTTP on the first configuration and the plugin says that all neccessary files are writable, you may use the HTTP method. If not, you should use the FTP method. If for some reasons you cannot or don’t want to use the FTP method and prefer HTTP, you must make your WordPress installation is writable by the webserver (only once; after the first upgrade with HTTP, the files are under control of the webserver).

Screenshots

Note: Click on the images below to see it in full size.

(Yes, the sceenshots show an upgrade from WP 2.3.3 to WP 2.3.3 – but that’s ok. InstantUpgrade can also be used to re-install your current version.)

Source wordpress.com