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Version: 5.1.1

Versions & changelog


Our versioning policy follows the Semantic Versioning specification. In our case, given a version MAJOR.MINOR.PATCH, we increment the:

  • MAJOR version when the data model of the Graph changes
  • MINOR version when the pipeline (e.g., different deduplication method, different implementation for an enrichment process) or major data sources change
  • PATCH version when the graph data are updated


This section documents all notable changes for each graph version. This page is going to replace the updates listed until the end of 2022 on the OpenAIRE website at


Start Date: 2023-02-13 Release Date: 2023-03-01 Dump release: no



  • Crossref dump from January 2023
  • ORCID works without a DOI from January 2023
  • Usage counts from January 2023
  • Datacite contents from mid February 2023
  • OpenCitations relations from December 2022


Start Date: 2023-01-16 Release Date: 2023-01-30 Dump release: no


  • Revised SDG classification: better accuracy, lower coverage (will improve in the next months)


  • Crossref dump from December 2022
  • ORCID works without a DOI from January 2023
  • Usage counts from December 2022
  • DataCite contents from January 2023


Start Date: 2022-12-19 Release Date: 2022-12-28 Dump release: yes



  • FOS and SDGs were removed from the result subjects
  • Measures were removed from the result instance
  • Updated DOIBoost to include publications from Crossref and the works from ORCID with a DOI until November 2022
  • Added ORCID works without a DOI from November 2022