Bri from HubSpot walks through April 2025 API changes and new developer tools. The update covers what's shipping now, what's coming soon, and how to use the latest features to build on the platform.
If you're using HubSpot's List V3 API, listen up because there's a breaking change and you need to know about it. And that's just one of this month's developer updates. Hey, I'm Bri. I'm a developer advocate at HubSpot and I'm here to help you build better, faster and stronger on the platform. Let's dive into April's developer updates. First up, HubSpot just dropped some brand new dev tools to make your life easier. The Spring Spotlight 2025 updates includes improvements to the CLI new developer project features real time app performance metrics and new UI templates. If you're building Custom apps on HubSpot, definitely check out this innovative suite of devtools. Next up, there's a change coming to the list API. List IDs are switching from integers to strings, so now is a great time to audit your code just to make sure that your apps can handle having list IDs as strings. Want to level up your HubSpot development skills? The CRM Customization Bootcamp is coming back on May 7th. It's a free hands on program where you'll build CRM cards, actions and React based extensions, all with expert guidance. Spots are limited so sign up early if you want in. We have tons of new developer content on the HubSpot Developers YouTube channel. First, Postman introduced their AI agent builder, which is a tool that lets you create custom API workflows using natural language prompts on the HubSpot Developer User Group stream. The Developers After Dark crew chats with Anton Bujanowski where he shares his journey from working at startups to building products used by thousands at HubSpot. And we also have an exciting new Update for the HubSpot CMS developers. You can now build modules in React and we also have two new blog updates. Learn how to generate dummy data with HubSpot's API using Postman and also learn how to build an architecture that can help improve performance of app cards for a global customer base. Something new this month we hosted a Reddit AMA all about UI extensions and answered top questions on building native feeling apps inside of HubSpot, including best practices for app design and performance tips. Be on the lookout for the next AMA and finally a few smaller but important platform updates. New languages are available for marketplace listings. The calling SDK got an upgrade and exposed tokens will now auto deactivate. So make sure that your apps stay compliant and take advantage of these new features and that's your HubSpot developer roundup for April to learn more about everything that we talked about today and also stay ahead of things that are happening in the ecosystem. Make sure that you're subscribed to the HubSpot developer changelog. You won't want to miss what's coming next.
