Contributors: joshfraz, pfefferle
Tags: pubsubhubbub, webhooks, pubsub
Requires at least: 2.5
Tested up to: 4.3.1
Stable tag: 1.7.2

A better way to tell the world when your blog is updated.

This PubSubHubbub plugin is a simple way to let people know in real-time when your blog is updated. PubSubHubbub is widely adopted and is used by Google Reader, Google Alerts and many other services.

This plugin:

• Sends realtime notifications when you update your blog
• Supports multi-user installations (Wordpress MU)
• Supports multiple hubs
• Supports all of the feed formats used by WordPress, not just ATOM and RSS2
• Supports latest spec (Version 0.4)
• Announces which hubs you are using by adding <link rel="hub" ...> declarations to your template header and ATOM feed
• Adds <atom:link rel="hub" ...> to your RSS feeds along with the necessary XMLNS declaration for RSS 0.92/1.0

By default this plugin will ping the following hubs:

• Demo hub on Google App Engine
• SuperFeedr

Please contact me if you operate a hub that you would like to be included as a default option.

1. Upload the pubsubhubbub directory to your /wp-content/plugins/ directory
2. Activate the plugin through the 'Plugins' menu in WordPress
3. Select custom hubs under your PubSubHubbub Settings (optional)

You can visit PubSubHubbub on Github

You can learn more about Josh Fraser at Online Aspect and Matthias Pfefferle at Notizblog

Project maintined on github at pubsubhubbub/wordpress-pubsubhubbub.

• updated screenshot
• updated default PubSubHubbub hub URLs to HTTPS from HTTP
• updated some documentation URLs to use HTTPS
• added workaround for invalid screenshot URL generated by grunt-wp-readme-to-markdown

• fixed some links
• finished language support

• fixed "plugin name"
• nicer docs
• WordPress coding standard

• hotfix

• removed pubsubhubbub client
• improvements for a better PuSH v0.4 support
• fixed small bugs

• Update hub URL for SuperFeedr (now pubsubhubbub.superfeedr.com)
• Update credits and documentation

• Bug fixes

• Added comment-feed support
• Added simple subscriber functions
• Added link header

• Added filter to modify $feed_urls
• Re-Added Stephen Paul Webers changes

• Added name spacing to avoid conflicts with other plugins & added patch from pfefferle

• Added multi-user support and now tested up to 2.9.1

• Added support for multiple hubs

• Added RSS support

• First attempt

Upgrade eliminates conflicts with other Wordpress plugins