update changelog

Author: mymmsc

CHANGELOG.md

@@ -3,6 +3,10 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [0.3.0] - 2024-05-11
+### Changed
+- 更新依赖库版本golang.org/x/sys到0.20.0.
+
 ## [0.2.9] - 2024-04-16
 ### Changed
 - 更新依赖库版本golang.org/x/sys到0.19.0.
@@ -225,7 +229,8 @@ All notable changes to this project will be documented in this file.
 - 初始化go module.
 - Initial commit.
 
-[Unreleased]: https://gitee.com/quant1x/num/compare/v0.2.9...HEAD
+[Unreleased]: https://gitee.com/quant1x/num/compare/v0.3.0...HEAD
+[0.3.0]: https://gitee.com/quant1x/num/compare/v0.2.9...v0.3.0
 [0.2.9]: https://gitee.com/quant1x/num/compare/v0.2.8...v0.2.9
 [0.2.8]: https://gitee.com/quant1x/num/compare/v0.2.7...v0.2.8
 [0.2.7]: https://gitee.com/quant1x/num/compare/v0.2.6...v0.2.7