Media community Blubrry has its podcast publishing plugin for WordPress, PowerPress 4.0. The update adds support for the latest iTunes podcast specs and more.

iTunes upgrades include:

• An updated iTunes image requirement — RGB 1400×1400 — throughout the plugin for better cover image quality throughout.
• “Feature Episode” that allow podcasters to designate a primary episode, which can be used to introduce the podcast or lead in to a new series.
• An iTunes Order feature that allows a podcaster doing a series of episodes to have each listed in the desired order.

Other PowerPress 4.0 offerings include:

• A new video player option: VideoJS HTML5 JavaScript player — a player that has its own plugin. By adding this plugin, the new player will be available as an option in PowerPress video players list.
• A Feed Episode Maximizer “option” for shows with episodes in excess of what can currently be included in a feed. This feature allows the podcaster to maintain the latest 10 episodes in iTunes with all of the extensive episode data. The rest of the episodes are listed in a way that maximizes the number of episodes that can be listed on iTunes / Zune etc. Perfect for the serial podcaster with an extensive episode library.

See the Blubrry site for details.