The first maintenance release of 8.5.0 is now available! concrete5 8.5.1 fixes some bugs with bulk user actions introduced in 8.5.0, improves the installation of concrete5 on databases that don't support advanced character sets, fixes some bugs with the new API, and more. It's a minor, maintenance release, and is highly recommended for anyone running 8.5.1.

Download concrete5 8.5.1

What's new in concrete5 8.5.1

Join us for another online town hall meeting on Tuesday (2019/04/02, 2019 April 2) at 9:30am Pacific Daylight Time:


Join us in the #town_hall channel in Slack for extra discussion and access!

Nearly a year in the making, concrete5 8.5.0 is now available today! Happy Pi Day!


Join us for another online town hall meeting on Tuesday (2019/03/05, 2019 March 5) at 9:30am Pacific:

Chat and questions will be in the #town-hall channel on

concrete5 8.4.5, 8.5.0RC2 and have just been released! Please read on for more details.


A vulnerability in concrete5 which permitted authenticated users to view the contents of arbitrary messages was reported on February 11, 2019. No information identifying individuals was exposed. A fix was added to the concrete5 repository on Monday, February 15, 2019 and mitigated on the website on Wednesday, February 20, 2019.

All concrete5 sites should update to versions 8.4.5 or The website has been upgraded and messages are no longer vulnerable, and no evidence was found that suggests this vulnerability was exploited on the website.

Interested in working directly with the core team of a successful open source project? We'd love to hear from you. 

Here's just a few ideas we quickly put together that might work for a summer project, but we'd be happy to review yours as well:

  • Implement new UX changes to our file manager. 
  • Build an example database application using Express and create documentation for it. 
  • Rebuild our old showcase area as a more modern stand-alone site. 
  • Build a website for your favorite charity using concrete5. 
  • Help turn the Conversations block into a fully featured forum. 
  • Flesh out all the routes in our REST API
  • Smoother, more powerful and user-friendly migration tool from 5.6 -> v7+
  • Implement an asset pipeline system, as per
  • Check out Github to see what we're working on and pitch your own idea!

Join us for another online town hall meeting on Tuesday (2019/02/05, 5 February 2019) at 9:30am Pacific



It's here! concrete5 v8.4.4 has arrived:

This version is a pretty light update, but there are some worthwhile security updates and a couple nice enhancements including:

Our monthly first tuesday meeting got into a scheduling limbo with the new year. 

We're still planning on being online at 9:30AM Pacific in Google Hangouts: