# 175. Relicense to Apache 2.0

Date: 2026-03-31

## Summary

Relicensed the repository from BUSL 1.1 to Apache License 2.0.

## What Changed

- replaced the main repo license text in `LICENSE.md` with Apache License 2.0
- updated `README.md` license badge and license section
- updated `CONTRIBUTING.md` to reflect Apache 2.0 contribution terms
- updated `NOTICE`
- updated SPDX headers across the current codebase from `BUSL-1.1` to
  `Apache-2.0`

## Notes

Historical task/changelog documents that describe the previous BUSL migration
work remain as historical records. The current repo license, however, is now
Apache 2.0.
