Release 3.4

New and Improved Features

• This release features new layout algorithms for the class diagram (#375). The algorithms leverage a number of heuristics to keep diagrams clear by avoiding overlap and edge crossings, while selecting intuitive-looking paths and more effective label placement (#446).
• In sequence diagrams, we no longer delete the implicit parameter when a constructor call is deleted (#437);

Bug Fixes

• Cannot select overlapped implicit parameters in sequence diagram (#438);
• Drag package content to bottom of viewport. Subsequence dragging misbehaves (#445)

Code Refactorings

• Refactor the PersistenceTests (#439)
• Update Checkstyle style file to 8.44 (#440)
• Code Modernization and Cleanup (#456). JetUML now runs on Java 17.