universal v4.8.0

Large collection of number systems providing custom arithmetic for mixed-precision algorithm development and optimization for AI, Machine Learning, Computer Vision, Signal Processing, CAE, EDA, control, optimization, estimation, and approximation.

Release notes

## [4.8.0] - 2026-08-13

### Added

- **takum**: Add takum_log, the logarithmic takum, on the shared codec  ([#1304](https://github.com/stillwater-sc/universal/pull/1304)) by @Ravenwater
- **takum**: Add the takum_log elementary function library  ([#1305](https://github.com/stillwater-sc/universal/pull/1305)) by @Ravenwater

### Build System

- **deps**: Bump the docs-site-minor-patch group  ([#1290](https://github.com/stillwater-sc/universal/pull/1290)) by @dependabot[bot]
- **deps**: Bump js-yaml from 4.3.0 to 4.3.1 in /docs-site  ([#1294](https://github.com/stillwater-sc/universal/pull/1294)) by @dependabot[bot]
- **deps**: Bump postcss from 8.5.19 to 8.5.26 in /docs-site  ([#1295](https://github.com/stillwater-sc/universal/pull/1295)) by @dependabot[bot]
- **deps**: Bump the docs-site-minor-patch group  ([#1296](https://github.com/stillwater-sc/universal/pull/1296)) by @dependabot[bot]

### CI/CD

- **deps**: Bump GitHub Actions to Node 24 runtimes  ([#1289](https://github.com/stillwater-sc/universal/pull/1289)) by @Ravenwater

### Changed

- **takum**: Extract the shared field codec into takum_codec.hpp  ([#1299](https://github.com/stillwater-sc/universal/pull/1299)) by @Ravenwater

### Documentation

- **takum**: Assess linear vs logarithmic takum, fix arXiv citation  ([#1298](https://github.com/stillwater-sc/universal/pull/1298)) by @Ravenwater

### Fixed

- **elreal**: Stop streaming addition from emitting subnormal ZBCL blocks  ([#1292](https://github.com/stillwater-sc/universal/pull/1292)) by @loren-osborn
- **posit**: Encoding() calls blockbinary::to_ull(), not to_ullong()  ([#1293](https://github.com/stillwater-sc/universal/pull/1293)) by @Ravenwater
- Resolve Apple Clang warnings without reducing test coverage  ([#1301](https://github.com/stillwater-sc/universal/pull/1301)) by @loren-osborn

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