Update CHANGELOG.md

Author: atsyplenkov

CHANGELOG.md

@@ -5,8 +5,12 @@
 ## Development version
 
 ### Added
-
 - Support to generate SQL statements for querying and modifying database tables (in #41, thanks to @juarezr)
+
+## [0.3.0] - 2025-09-12
+
+### Added
+
 - Markdown table support (thanks to @juarezr)
 - TSV and CSV table support (thanks to @juarezr)
 - `pastum.libraryDeclaration` configuration option, which allows the user to add library declaration to the pasted dataframe. (#18)