2024.3

This release includes

• Updates to the openCypher Grammar specification for further alignment with ISO/IEC 39075 GQL:

  • Add SHORTEST grammar

• Minor cleanups

  • Removal of unused keywords in <non-reserved word>
  • Fixing SET/REMOVE item

2024.2

This release includes

• Updates to the openCypher Grammar specification for further alignment with ISO/IEC 39075 GQL:

  • Add label expressions grammar
  • Add keyword IS in the label set for update statements (for consistency with label expressions)
  • Add <element pattern where clause> grammar
  • Add quantified path patterns grammar

• Minor cleanups

2024.1

• This release is the first release on the path of evolving the specification of towards ISO/IEC 39075 GQL.
• From this release onwards the versions are numbered: <gql-edition-year>.<running-number>, where is the year of the edition of ISO/IEC 39075 GQL that the openCypher release is evolving towards. Hence, this first release is 2024.1. Future openCypher release will numbered 2024.x until there is new edition of ISO/IEC 39075 GQL published.
• The relies comprises the three main openCypher Artifacts
  • The openCypher specification documents, containing a complete reference for openCypher query language.
  • The TCK (Technology Compatibility Kit) is a Cucumber-based set of tests that can be used for any openCypher implementation in any of the many programming languages supported by Cucumber.
  • The openCypher Grammar specification in ISO WG3 BNF format.
• Users interested in the openCypher 9 specification can find it in preceding releases versioned 1.0.0-Mxx as well as here.

Milestone 23

This release includes:

• TCK API - Fix bug in map comparison

Milestone 22

This release includes:

• TCK API
  • Fix bug in unordered row comparison
  • Fix bug in unordered list comparison
  • Avoid silent failing on scenario initialization queries
  • Fix bug in expected error checking
• TCK
  • Update expected error in ReturnOrderBy6 and WithOrderBy4

Milestone 21

This release includes:

• Fix test assertions in Feature Aggregation5
• Fix wrong variable in Feature ExistentialSubquery2

Milestone 20

This release includes:

• Fix test assertions of labels function — compare irrespective of order now
• Fix antlr parser demo, so that Cypher.g4 file does not reside as a resource in the repository anymore — it is looked for in the current working directory now

Milestone 19

This release includes:

• General
  • Upgrade of log4j version to 2.17.0
  • Upgrade of xmlgraphics-commons version to 2.6
  • Minor dependencies fixes
• CIPs
  • Accept CIP2021-07-07 Grouping key and aggregation expressions
  • Accept CIP2021-08-10 Operator precedence
  • Adjustment of CIP2015-05-13 EXISTS to grammar refactorings
• TCK, TCK API, and TCK tools
  • Update TCK scenarios to reflect CIP2021-07-07 Grouping key and aggregation expressions, primarily in TCK features Return6, ReturnOrderBy6, With6, and WithOrderBy4
  • Add TCK scenarios to reflect CIP2021-08-10 Operator precedence
  • Remove deprecated syntax from TCK scenarios, specifically
    • Octal number syntax starting with 0 instead of 0o
    • No coercion of lists to boolean
  • Add scenarios to TCK feature WithSkipLimit3
  • Update scenario in TCK feature List6 to avoid introducing variable in pattern predicate
  • Fix hashcode bug in TCK API class CypherLists
  • Speed up of TCK integrity tests
• Grammar and grammar tools
  • Add antlr parser demo
  • Grammar refactorings
    • Add <PatternPredicate> ::= <RelationshipsPattern> for clearer distinction of <RelationshipsPattern> appearing as an <Atom>
    • Add separate production of s for better referencing and separation of quantifiers in the grammar
  • Add functionality to the grammar toolkit, e.g. praising of ISO WG3 BNF
  • Fix bug in grammar non-terminal <UnaryAddSubtractExpression>
  • Remove use of a deprecated antlr class

Milestone 18

This release includes two fixes:

• Fix for Scala cross building for 2.12 and 2.13
• Fix of TCK scenario expressions/boolean/Boolean5.[6]

Milestone 17

This release includes:

• Support for Scala cross building for 2.12 and 2.13
• TCK:
  • New scenarios in clauses/with-orderBy
  • New scenarios in clauses/call/Call5
  • New scenarios for creating multiple nodes with overlapping label sets in clauses/create
  • New scenarios in expressions/pattern
  • New scenarios in expressions/existentialSubquery
  • New scenarios in expressions/quantifier
  • New scenarios in expressions/boolean
  • Fixing missing result order in a number of scenarios
  • Fixing wrong result expectation of scenario expressions/boolean/Boolean5.[6]
  • Fixing type expectation scenarios in expressions/typeConversion scenarios
  • Fixing type expectation scenarios in expressions/list/List1
• TCK tooling:
  • Scenario testing failure get automatically assigned the tag @NegativeTest by the TCK API for easy discovery
  • TCK error characteristics now allow wildcards
  • TCK API now retain causing exception when something fails during side effect measurement queries
  • New TCK step for creating CSV files
• Grammar:
  • Fixing YIELD grammar
• Grammar tooling:
  • tool grammarLink.html in tools/grammar-production-links, which provides the possibility to stably link a production by name in the openCypher grammar files without hard-coding the line number.