May 2025 monthly highlights for PolicyEngine/policyengine-us focusing on delivering inflation-resilient pricing and maintainability improvements. Implemented CPI-U–linked auto loan balance and interest adjustments to preserve real value over time and reduce manual recalibration. Documentation updated in the changelog to reflect new behavior and usage guidance.

March 2025 monthly summary: Delivered cross-repo policy and front-end updates with measurable business value. Implemented front-end team bio updates and bios standardization; updated tax policy parameters for Arizona 2024 and standard deduction uprating to mirror federal rules; extended uprating to charitable contribution credits (2021-2024); added release notes and updated tests to reflect policy changes; fixed minor typos and improved changelog accuracy. These changes enhance accuracy of policy calculations, improve user-facing bios consistency, support compliant tax calculations, and strengthen release documentation and test coverage.