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WordPress 3.9 compatibility updates

By Zack Tollman on April 15, 2014

The WordPress core project has a strong commitment to backwards compatibility. This commitment means that themes, plugins, and custom code continues to function when WordPress core is updated. At The Theme Foundry, we adhere to WordPress’ best practices when developing our themes to make sure that WordPress core upgrades go as smoothly as possible.

Interestingly, WordPress 3.9, which is slated for release on April 16th, has been one of the more difficult upgrades for us. WordPress uses a number of 3rd party Javascript libraries that do not share WordPress’ perspective on backwards compatibility. TinyMCE, Masonry, and Backbone all received significant updates in WordPress 3.9. These updates, which alter the way in which the scripts behave, have caused some features to break in our themes.

Fortunately, we have ironed out all of these issues and updated all of our themes to be fully compatible with WordPress 3.9. If you are a current customer, we recommend updating your theme when you update to WordPress 3.9 in order for everything to function smoothly. WordPress 3.9 is a great update and we are excited that you can enjoy it knowing that your theme is ready for it.


  1. Kym Sheehan

    Hi Guys

    I only received the email about this today – 19 April 2014 at 2.00am here in Sydney. Gotta say: if you know this is going to cause a major hassle (and I could see it took out the side bar and the footers on my site, leaving a message in the sidebar about setting up a sidebar – not a good look) then why wasn’t the email sent out earlier? Your post certainly indicates the time you knew the update was going to cause a problem but you had devised a solution, and that was a few days ago.

    I imagine that, like a lot of people who buy your theme, I don’t revisit the site that often, only dropping by when I need to learn how to do something, or what to purchase a new theme. Getting the emails of the blogposts is my only way of finding out important things about your products.

    Please make such update announcements timely to all by sending out an email or else using the WordPress feature that notifies of an update and then allows people to use it.


  2. Zack Tollman

    Hi Kym,

    Sorry for the disappointment for the timing of the announcement. We only made the announcement when all of the themes were ready for the WordPress 3.9 update. There were a few compatibility issues that took us some time to fix and test. The last of which was only completed a day before the announcement.

    This update has been a real challenge for us. The types of issues that have come up are not easy to patch in such a way that are compatible for different versions of WordPress. Additionally, we usually need to wait until just before a WordPress update is released to fully test our fixes because the WordPress update itself changes frequently prior to the actual release. As such, we really have a short window to get issues fixed and releases released.

    I hope you understand that not all of this is in our control and we try to get these updates to you ASAP to ensure a smooth upgrade experience for you.

  3. Sachin Aggarwal


    I am a novice user and I am was running carolina theme on my intranet. I updated my installation to 3.9 and as soon as i did it, my intranet page layout went out of wack.. have you faced issue with this theme?

    i am unable to figure out as how can i roll back either my theme or the update so that I can have it the way I had earlier.

  4. Zack Tollman

    Hi Sachin!

    I would recommend inquiring with the Carolina theme’s support channel. As we do not work with themes other than our own, we do not have any experience with that theme. Hopefully, the Carolina theme support team will be able to assist you.

  5. Gabriele Nicolis

    I’ve a problem with theme and WP 3.9.1. In particular in the pages with product template, in the single block, I see only the text interface and not the visual when I edit my page block. In the standard template the interface I can see both, text and visual.
    Another question: in mobile view the post image appers 2 times in blog timeline…
    TNX in advance!

  6. Zack Tollman

    Hi Gabriele!

    Can you head over to the Help Center so we can work with you to resolve this issue?

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