Last updated: November 29, 2024

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# jQuery SDK 2.4.0: key fixes for better stability

![Tim Koschützki](/assets/images/teammates/avatar-tim-kos-1.jpg?dpl=dpl_AkBKiiEcd5MPUBn4NARw15mr6FeE)

**Tim Koschützki**

Co-founder · Berlin, Germany · Show bio

[](https://x.com/tim%5Fkos)[](https://github.com/tim-kos)

Today, we are announcing the latest version of our jQuery SDK - version 2.4.0!

This release contains two important fixes and we encourage everyone to upgrade as soon as possible:

* This version fixes crashes that can occur on iOS when uploading large videos.
* This version prevents files from being sent to the final form submit destination in the latest Firefox version, causing 413 status headers in some Nginx configurations.

If you are using `//assets.transloadit.com/js/jquery.transloadit2-latest.js` or`//assets.transloadit.com/js/jquery.transloadit2-v2-latest.js`, you will be upgraded automatically.

There also is a change in behavior that you should be aware of:

* The check whether the chosen file's extension matches the values in the file input's `accept`attribute has been removed. Comparing mime types to file extensions was a bad idea.

This means that you can no longer rely on the `accept` attribute to prevent users from uploading certain types of files. If this is problematic for you, please use the previous version which is available at `//assets.transloadit.com/js/jquery.transloadit2-v2.3.5.js`. Our our Robotswill already ignore any file types they don't understand, but if you want to make absolutely sure that particular file types are rejected, we recommend using our[/file/filter](/docs/robots/file-filter.md) Robot.

A big thanks goes to Christian Pekeler from[DailyChildcareReport⁠](https://www.dailychildcarereport.com/login/) who helped us analyze these problems!

[#integrations](/blog/tags/integrations.md)[#jquery-sdk](/blog/tags/jquery-sdk.md)[#file-filter-robot](/blog/tags/file-filter-robot.md)

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