# December 2025 Developer Rollup

**URL:** <https://community.hubspot.com/t/december-2025-developer-rollup/144612>\
**Category:** Developer Announcements\
**Tags:** api, announcement\
**Created:** [January 6, 2026, 7:27pm UTC](https://community.hubspot.com/t/december-2025-developer-rollup/144612 "2026-01-06T19:27:34Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![amjadkhatri](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/amjadkhatri/32/79746_2.png) [@amjadkhatri](https://community.hubspot.com/u/amjadkhatri)\
**Post date:** [January 7, 2026, 8:35am UTC](https://community.hubspot.com/t/december-2025-developer-rollup/144612/2 "2026-01-07T08:35:15Z")

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Thanks for this comprehensive December rollup, Dadams!

This update is packed with valuable enhancements for the developer community. I’d like to highlight a few key takeaways that will significantly impact development workflows:

\*\*Migration Support Excellence:\*\*  
The Legacy CRM Card Converter is a game-changer for developers transitioning from Classic CRM Cards to App Cards before the October 2026 sunset. Having sample mappings and React-based reference implementations will streamline the migration process considerably.

\*\*Developer Experience Improvements:\*\*  
The new task cards on the Developer Overview providing migration eligibility labels is a huge quality-of-life improvement. This proactive guidance will help developers avoid common pitfalls during platform migrations.

\*\*API Enhancements I’m Excited About:\*\*

1. \*\*HubSpot IP Ranges API\*\* - This is crucial for firewall management and security automation. No authorization required makes it even more developer-friendly.

2. \*\*Template Selection for CPQ Quotes\*\* - This unlocks significant customization potential for programmatically generated quotes.

3. \*\*Object Type ID filtering in v3 Lists API\*\* - Better segmentation capabilities for CRM workflows.

\*\*Sandbox Updates:\*\*  
The new 200,000 record limit per object type and Deploy to Production feature are significant improvements. Teams should start planning their Legacy Sandbox migration before March 16, 2026.

\*\*Question for the Community:\*\*  
For those working with Breeze Assistant’s new custom event querying capability - have you started leveraging this for customer behavior insights? I’d love to hear about use cases.

Great work from the HubSpot developer team on these updates!

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_[View the full topic](https://community.hubspot.com/t/december-2025-developer-rollup/144612)._