During January 2026, this developer enhanced the JetBrains/ideavim repository by implementing recursive toggle folding for the Vim editor, enabling users to expand or collapse code blocks efficiently using the zA command. The work involved developing robust fold-region management APIs and updating unit tests to ensure comprehensive coverage of new folding behaviors and edge cases. Utilizing Java and Kotlin, the developer focused on aligning folding commands with established Vim semantics, thereby improving navigation and workflow for users working with large files. This contribution addressed the need for intuitive code folding, streamlining the editing experience and supporting advanced editor development within the project.