Frontend

Languages

Chosen Technologies:

• JavaScript
• TypeScript

Build Tools

Chosen Technologies:

• Node 20
• Yarn 1

First Party Libraries / Frameworks

Notes: These versions are often only decided upon in the latter states of the flower release process and may be subject to change even after this document is accepted

Chosen Technologies:

• Stripes 9.2.0 or greater

Shared Third Party Libraries / Frameworks

Chosen Technologies:

• React ^18.2

During Build Automated Testing

Chosen Technologies:

• Jest
  • should be ^29
• RTL
  • should be ^14

Post Build Integration Testing

Chosen Technologies:

• Cypress ^10

Backend

Languages

Chosen Technologies:

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

Build Tools

Chosen Technologies:

• Maven 3.8 or later
• Docker
• Gradle

First Party Libraries / Frameworks

Notes: These versions are often only decided upon in the latter states of the flower release process and may be subject to change even after this document is accepted

Chosen Technologies:

• folio-spring-base 8.1 or greater
• folio-vertx-lib 3.2 or greater
• raml-module-builder 35.2 or greater
  • deprecated. Only existing FOLIO modules may continue to use raml-module-builder
• edge-common 4.5.2 or greater
• edge-common-spring 2.3.2 or greater

Third Party Libraries / Frameworks

Chosen Technologies:

• Spring Boot 3.3 (OSS support until 2025-05)
• Spring Framework 6.1 (OSS support until 2025-08-31)
• Grails 6
• vertx 4 (See https://github.com/eclipse-vertx/vert.x/wiki/Vert.x-5)
• Lombok
• AWS SDK for Java 
  • version 2 (version 1 will reach end-of-support on December 31, 2025)

During Build Automated Testing

Chosen Technologies:

• JUnit
  • 5 should be used, 4 (is in maintenance mode) may be used, however JUnit 5 vintage is preferred
• rest-assured 
• testcontainers

Post Build Integration Testing

Chosen Technologies:

• karate
• cucumber-reporting

Infrastructure

Chosen Technologies:

• Postgresql 16
• OpenSearch 2 and Elasticsearch 8
  • OpenSearch maintenance policy
  • Elasticsearch support policy, EOL dates, release history
• MSK/Kafka
• S3/MInIO

Support period

Technology versions must support the full Ramsons support period that ends around April 2025: Ramsons will be released in August 2024 and will be supported until Trillium (R1 2025) gets released around April 2025 (based upon assumption that future releases will follow a similar cadence to previous releases), see FOLIO support policy.