GraphForge v0.3.0 was the major Cypher feature release that pushed the engine into more complex graph-query territory.

The release added the features analysts expect when graph queries stop being simple match-return examples and start needing optional branches, nested logic, and variable path traversal.

What Shipped

• OPTIONAL MATCH with left outer join semantics
• UNION and UNION ALL
• List comprehensions
• EXISTS {} and COUNT {} subquery expressions
• Variable-length path patterns
• IS NULL and IS NOT NULL
• Tree-based operators for nested query execution
• Enhanced expression evaluation for nested lists, maps, and subqueries

Why We're Excited

This release gave GraphForge the shape of a serious Cypher engine. It also established the architecture needed for later TCK compliance work: nested operators, context isolation, and recursive execution.

Source

• GitHub release: GraphForge v0.3.0