What's Changed

• Add zero-dependency native C extension for LSI acceleration by @cardmagic in #89
• feat: add thread safety to Bayes and LSI classifiers by @cardmagic in #86
• feat: add save/load methods for classifier persistence by @cardmagic in #85
• perf: cache expensive computations in Bayes classifier by @cardmagic in #84
• feat(lsi): expose tuning parameters with validation and introspection API by @cardmagic in #92
• Add rubyclassifier.com links to README and gemspec by @cardmagic in #94
• feat: add pluggable persistence backends with storage API by @cardmagic in #93

Full Changelog: v2.0.0...v2.1.0