Update CHANGELOG.md

Author: longxf21

CHANGELOG.md

@@ -2,4 +2,50 @@
 
 All notable changes to this project will be documented in this file.
 
-<!-- generated by git-cliff -->
+## [0.2.7] - Latest
+- Documentation improvements
+
+## [0.2.6] - Previous
+- Created ReadTheDocs
+- Bug fixes
+- Improved test coverage to 99%
+
+## [0.2.5]
+- Separated model reading from analysis
+- Tested on 1054 biomodels and fixed bugs
+- Added check_model method to allow users to use the package with one line
+- Solved issue with running sympy with built-in symbols such as "S"
+
+## [0.2.4]
+- Updated instructions in README
+
+## [0.2.3]
+- Included .json files
+- Fixed path finding issue
+
+## [0.2.2]
+- Bug fixes
+- Created GitHub workflow for CI
+
+## [0.2.1]
+- Removed Analyzer.check()
+- Added get_all_checks() to get info about all checks
+- Improved testing to full coverage except for trivial ones
+- Improved exception messages
+- Allowed string of Antimony or SBML model as input
+- Simplified the import statement
+- Revised existing and added new method and class comments
+
+## [0.2.0]
+- Removed numpy dependency
+- Updated rate law classification scheme
+- No longer using SBMLKinetics for rate law classifications
+- Restructured code for web integration
+
+## [0.1.0]
+- Initial release
+- Used SBMLKinetics for rate law classifications
+
+---
+
+For the latest release notes, check the [GitHub Releases](https://github.com/sys-bio/ratesb_python/releases).