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Chosen Technologies:

• Node 20
• Yarn 1
• TBD: There is an open spike (STRIPES-907) from stripes-force to investigate alternate build strategies.

First Party Libraries / Frameworks

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• Jest
  • should be 29 or greater
• RTL
  • should be 14 greater

Post Build Integration Testing

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Reasoning: The FOLIO community has previously adopted the policy that first party technologies must be synchronised across all modules within the system for easier support

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.
• A first party library/framework needs to support only one of the versions allowed in the "Third Party Libraries / Frameworks" list.

Chosen Technologies:

• folio-spring-base 8.1 or greater
• folio-vertx-lib 3.2 or greater
• raml-module-builder 35
  • 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
• https://github.com/folio-org/folio-s3-client 2.1.1 or greater

Third Party Libraries / Frameworks

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Reasoning: These technologies are only used within a module. It is reasonable for the versions to vary between modules as the choice does not affect other modules or centralised centralized community tooling

Notes: A first party library/framework may support only one of these versions.

Chosen Technologies:

• Spring Boot
  • 3.4 or later recommended (OSS support until 2025-0511)
• Spring Framework
  • 6.1 2 or later recommended (OSS support until 20252026-08-31)
• Grails
• Eclipse Vert.x 4
  • See https://projects.eclipse.org/projects/rt.vertx
• Lombok
• AWS SDK for Java
  • version 2 (version 1 will reach end-of-support on December 31, 2025)
• MinIO Client library 8.5 or higher recommended

During Build Automated Testing

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Reasoning: These technologies are only used for automated testing within the module. It is reasonable for the versions to vary between modules as the choice does not affect other modules or centralised centralized community tooling

Chosen Technologies:

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• Postgresql 16
• OpenSearch 2 and Elasticsearch 8
  • OpenSearch maintenance policy
  • Elasticsearch support policy, EOL dates, release history
• MSK/Kafka - 3.5.1 
• S3/MInIO - S3 API version
  

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Policies

Policies should use the language described in RFC-2119

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