Frontend

Languages

• JavaScript
• TypeScript

Frameworks

• React ^18.2
• Stripes ^9.0.0

Build tools

• Node 18 (because Node 16 reaches end of life on 2023-09-11)
• Yarn 1

Unit test stack

• Jest ^26.6.3 (^29 is preferred)
• RTL ^12.1.2  (^14 is preferred)

End-to-end test stack

• Cypress ^9.1.1

Backend

Languages

• Java 17 (migration instructions: JDK 17 and Java 17)
• Groovy (version determined by the version of Grails, below)
• OpenAPI (OAS) version 3.* (see https://dev.folio.org/start/primer-oas/)

Frameworks

• Spring Boot 3.2.* (OSS support until 2024-11-23)
• Spring Framework 6.1.* (OSS support until 2025-08-31)
• folio-spring-base 8.0
• Grails 6
• vertx 4.5.*
• folio-vertx-lib 3.2.*
• raml-module-builder 35.* [deprecated: only existing FOLIO modules may continue to use raml-module-builder]
• edge-common 4.*
• edge-common-spring 2.*
• Lombok

Build tools

• Maven 3.8 or later
  
• JDK 17 (migration instructions: JDK 17 and Java 17)
• Docker
• Gradle

Unit test stack / Build-time integration test stack

• JUnit 4 or 5
• rest-assured 
• testcontainers 

Integration test stack

• karate 
• cucumber-reporting

Infrastructure

• Postgresql 12 / 16
  • PostgreSQL 12 will reach EOL on November 14, 2024 and FOLIO needs to transition to a current version, PostgreSQL 16.  Quesnelia will be a transition release which must run under both PostgreSQL 12 and PostgreSQL 16, this will allow deployed environments to transition.
  • See DR-000038 - PostgreSQL Upgrade to 16
• OpenSearch 2 / Elasticsearch 8 – (OpenSearch maintenance policy) (Elasticsearch support policy, EOL dates, release history)
• Kafka
• S3/MInIO

Support period

Technology versions must support the full Quesnelia support period that ends around December 2024: Quesnelia will be released in April 2024 and will be supported until Sunflower (R3 2024) gets released around December 2024 (based upon assumption that future releases will follow a similar cadence to previous releases), see FOLIO support policy.