Ancestry API Changes and Why Backups Matter

API stands for Application Programming Interface. It’s a set of rules allowing different software applications to "talk" to each other. Think of it as a translator that helps different programs exchange data smoothly.

In the case of Ancestry, they have a private API. This means only select third-party companies can use it. Currently, RootsMagic and Family Tree Maker have business agreements allowing API-based syncing with Ancestry. Both programs have the ability to add, delete and change data in your Ancestry tree, so accuracy and security are vitally important. Other programs may have more open APIs, and developers may be encouraged to use their APIs to expand their functionality. A good example of this is Legacy Family Tree. While they don't have their own API, they use APIs from other services to offer more features in their software.

As of April 2026, the transition to Ancestry's new API is complete. This should improve the reliability, performance and security of how both RootsMagic and Family Tree Maker function during synchronization. While it's tempting not to update, especially when those updates have a tangible cost and you may be perfectly happy with the performance of an older version — it's important to do so if you plan on continuing to synchronize trees. 

For RootsMagic, you currently need version 11.2.0 or later. If you need to update, head over to their blog for more information on how to obtain the update. If you use Family Tree Maker, FTM2024 was developed with the new API in mind. Versions prior to 2017 no longer sync.

On another note —  please remember to back up your desktop files and media. Regardless of whether you use the latest software version, things can and will go wrong. You always want a recent backup in case you need to restore. This goes for any genealogy software you may be using, even if it's not RootsMagic or FTM. Having a solid backup plan is essential. I recommend three locations. For me, those locations include my computer, a USB drive, and cloud backups.

Disclosure: I used ChatGPT to create the title, SEO description, and minor grammatical changes for better readability. The content of the post is my own.

Image by zeeve platform from Pixabay