WordPress Beta Tester






始める前にバックアップをお忘れなく !


  • プラグインの管理画面


  1. プラグインフォルダーにアップロードします。通常 wp-content/plugins/ です。
  2. プラグイン画面でプラグインを有効化する。
  3. 「ツール → ベータテスト」画面に移動し、プラグインを設定する。
  4. 「ダッシュボード → 更新」(バージョン 3.0 以前では「ツール → 更新) 画面に移動し、最新版ベータリリースに更新する。


A Must have Developer Plugin

Very useful to test plugins against latest beta/rc versions.

But keep in mind, that this plugin is designed for developers only to use it on their development sites – never try to use it on a production site! you may not to be able to go back to stable releaes!

Excellent – Usage: For Development testing ONLY

I see a lot of 1 star reviews from people who obviously do not understand what this plugin is for. It is ONLY for Development testing and should ONLY be installed on a Development site/server. This plugin should ONLY be used by Coders and Developers (plugin authors, theme authors, custom coders) to test their code against the latest non-Publicly released WordPress versions. If you install this plugin on a Development site then there would be no reason to change to a publicly released Production version of WordPress since this plugin is ONLY for Development sites/servers and NOTHING else.

If you want to install and use this plugin then create a Development WordPress website (a copy of your Live Production website). If you accidentally installed this plugin on a Live Production website then restore your website from a backup.

Two suggestions

1. Allow users to downgrade to either a different beta release or the previous stable release.

2. Tell users what versions they are on in the Updates page.

Also, there seems to be a bug. Even after updating to the latest version it still says “An updated version of WordPress is available.”

horrible do not download

word press said they had an update and i had other updates as well so i updated all…now come to find out is says on a little side note “wordpress 4.5 beta 2 is now available this software is still in development, so we don’t recommend you run it on a production site. consider setting up a test site just to play with the new version. ” what in the world my site takes 5 minutes to load or doesn’t even load at all and i can’t even add a post! i can’t do anything as a administrator because it takes 10 minutes for the page to load or it doesn’t load at all and says “error establishing a database”


The plugin does what it promises. But it seems using this plugin is a one way thing. Returning back to using only stable releases can be a big hassle. Disabling & uninstalling the plugin might or might not work for you.

It’s almost criminal that such a plugin is endorsed by the official WordPress pages.

As all the warnings say, make sure you have good backups of everything before using, and use only at your own risk.


Works very well. I’m glad this plugin exists. Big thanks to Peter!



“WordPress Beta Tester” is open source software. The following people have contributed to this plugin.


“WordPress Beta Tester” has been translated into these 9 locales: French, Japanese, German, Ukrainian, Russian, Croatian, Portuguese, Italian, English (Canada). Thank you to the translators for their contributions.

Translate “WordPress Beta Tester” into your language.

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  • Fixed to work properly under Multisite.


  • Update tested up to version to 4.7.
  • Fix the location of the settings screen in Multisite (moved under Settings in Network Admin).
  • Minor text fixes.


  • Update tested up to version to 4.5.
  • Fix PHP7 deprecated constructor notice.
  • Change text domain to match the plugin slug.
  • Update WordPress.org links to use HTTPS.
  • Remove outdated bundled translations in favor of language packs.


  • Update tested up to version to 4.2.
  • Update screenshot.
  • Fix a couple typos.


  • Add support for HTTPS urls on WP.org as well as non-HTTPS ones.


  • Unforce HTTPS for all api.wordpress.org requests.


  • Force HTTPS for all api.wordpress.org requests.


  • WordPress 3.4.x compatibility fixes


  • Further WordPress 3.2 compatibility fixes from nacin
  • Addition of activate and deactivate hooks to clear down the update core transient.


  • WordPress 3.2 compatibility fixes from dd32


  • Fixed a bug in the point release nightlies stream whereby we displayed the downgrade message erroneously


  • Add support for converting WordPress mu installs over to WordPress 3.0 RC 1 dev track


  • Fix bug which causes the message to always display


  • Added a big error message to warn people that there configuration is going to downgrade the version of WordPress they have installed


  • Fixed an issue in the version mangling for the bleeding edge develpment track which didn’t handle the x.9 => y.0 transition
  • Added translation files for Albanian and French.


  • Fixed noticed on dashboard after upgrade and before the update api data was refreshed
  • Added translation files for German, Bosnian, Italian, Polish and Romanian.


  • Completed support for translations
  • Added translation files for Japanese
  • Fixed issue with calls to get_preferred_from_update_core() when running on a cron hook.


  • Update the code to validate the returned upgrade url so as to ensure that we only offer to upgrade to builds that exist.


  • Initial Release containing support for switching your blog to point release nightlies or bleeding edge nightlies