What's Changed

Enhancements 🚀

• Add support for flags pflag.BoolSlice, pflag.UintSlice and pflag.Float64Slice by @nmvalera in https://github.com/spf13/viper/pull/2015
• feat: use maintained yaml library by @sagikazarmark in https://github.com/spf13/viper/pull/2040

Bug Fixes 🐛

• fix(config): get config type from v.configType or config file ext by @GuillaumeBAECHLER in https://github.com/spf13/viper/pull/2003
• fix: config type check when loading any config by @sagikazarmark in https://github.com/spf13/viper/pull/2007

Dependency Updates ⬆️

• Update dependencies by @sagikazarmark in https://github.com/spf13/viper/pull/1993
• build(deps): bump github.com/spf13/cast from 1.7.1 to 1.8.0 by @dependabot[bot] in https://github.com/spf13/viper/pull/2017
• build(deps): bump github.com/pelletier/go-toml/v2 from 2.2.3 to 2.2.4 by @dependabot[bot] in https://github.com/spf13/viper/pull/2013
• build(deps): bump github.com/sagikazarmark/locafero from 0.8.0 to 0.9.0 by @dependabot[bot] in https://github.com/spf13/viper/pull/2008
• build(deps): bump golang.org/x/net from 0.37.0 to 0.38.0 in /remote by @dependabot[bot] in https://github.com/spf13/viper/pull/2016
• build(deps): bump github.com/spf13/cast from 1.8.0 to 1.9.2 by @dependabot[bot] in https://github.com/spf13/viper/pull/2020
• build(deps): bump github.com/go-viper/mapstructure/v2 from 2.2.1 to 2.3.0 by @dependabot[bot] in https://github.com/spf13/viper/pull/2028
• build(deps): bump github.com/go-viper/mapstructure/v2 from 2.3.0 to 2.4.0 by @dependabot[bot] in https://github.com/spf13/viper/pull/2035
• build(deps): bump github.com/spf13/pflag from 1.0.6 to 1.0.7 by @dependabot[bot] in https://github.com/spf13/viper/pull/2036
• build(deps): bump github.com/fsnotify/fsnotify from 1.8.0 to 1.9.0 by @dependabot[bot] in https://github.com/spf13/viper/pull/2012
• build(deps): bump github.com/stretchr/testify from 1.10.0 to 1.11.1 by @dependabot[bot] in https://github.com/spf13/viper/pull/2052
• build(deps): bump github.com/go-viper/mapstructure/v2 from 2.3.0 to 2.4.0 in /remote by @dependabot[bot] in https://github.com/spf13/viper/pull/2048
• build(deps): bump github.com/spf13/pflag from 1.0.7 to 1.0.10 by @dependabot[bot] in https://github.com/spf13/viper/pull/2056
• chore: update dependencies by @sagikazarmark in https://github.com/spf13/viper/pull/2057

Other Changes

• Update update guide with mapstructure package replacement. by @aldas in https://github.com/spf13/viper/pull/2004
• refactor: use the built-in max/min to simplify the code by @yingshanghuangqiao in https://github.com/spf13/viper/pull/2029

New Contributors

• @GuillaumeBAECHLER made their first contribution in https://github.com/spf13/viper/pull/2003
• @aldas made their first contribution in https://github.com/spf13/viper/pull/2004
• @nmvalera made their first contribution in https://github.com/spf13/viper/pull/2015
• @yingshanghuangqiao made their first contribution in https://github.com/spf13/viper/pull/2029
• @ccoVeille made their first contribution in https://github.com/spf13/viper/pull/2046
• @spacez320 made their first contribution in https://github.com/spf13/viper/pull/2050

Full Changelog: https://github.com/spf13/viper/compare/v1.20.0...v1.21.0