# Change Log - **Last updated**: 2026-07-02T14:22:52Z - **Generator**: [thi.ng/monopub](https://thi.ng/monopub) All notable changes to this project will be documented in this file. Only versions published since **2023-01-01** are listed here. Please consult the Git history for older version information. See [Conventional Commits](https://conventionalcommits.org/) for commit guidelines. **Note:** Unlisted _patch_ versions only involve non-code or otherwise excluded changes and/or version bumps of transitive dependencies. ### [2.1.80](https://codeberg.org/thi.ng/umbrella/src/tag/@thi.ng/porter-duff@2.1.80/packages/porter-duff) (2024-06-21) #### ⏱ Performance improvements - update clamping in porterDuffInt() ([1c6ffc0](https://codeberg.org/thi.ng/umbrella/commit/1c6ffc0)) #### ♻️ Refactoring - enforce uniform naming convention of internal functions ([56992b2](https://codeberg.org/thi.ng/umbrella/commit/56992b2)) ### [2.1.47](https://codeberg.org/thi.ng/umbrella/src/tag/@thi.ng/porter-duff@2.1.47/packages/porter-duff) (2023-11-09) #### ♻️ Refactoring - update all tests (packages A-S) ([e3085e4](https://codeberg.org/thi.ng/umbrella/commit/e3085e4)) #### 🧪 Tests - update/refactor tests to use bun test runner ([8f6edb1](https://codeberg.org/thi.ng/umbrella/commit/8f6edb1)) - update/rename test files/imports (still many broken) ([1cb3c49](https://codeberg.org/thi.ng/umbrella/commit/1cb3c49)) ### [2.1.23](https://codeberg.org/thi.ng/umbrella/src/tag/@thi.ng/porter-duff@2.1.23/packages/porter-duff) (2023-01-10) #### ⏱ Performance improvements - return optimized blend fns ([1c408c7](https://codeberg.org/thi.ng/umbrella/commit/1c408c7)) - add PD coefficient checks in porterDuff()/porterDuffInt() - return optimized blend fns if one or both coeffs are zero