✨ Enhancements

• Add Variant Allele Frequency in Plots tab - GSoC'25 @rishisulakhe (cbioportal-frontend#5209)

🐛 Bug Fixes

• Fix comparison alterations tab selector unselected default state @gblaih (cbioportal-frontend#5274)

⚙️ REST API Changes

• Update CancerStudy with imaging sample counts @gblaih (#11463)
• Add GENE_TABLE_VERSION to info table and implement Info service with DB-backed values @dippindots (#11757)

🗄 Database Migration

• Release 6.4.0 @dippindots (#11748)
  • Increase clinical_event.EVENT_TYPE size from 20 to 50 characters @dippindots (#11752)
  • Remove Cosmic and MyCancerGenome (#11561)
  • Add GENE_TABLE_VERSION to info table and implement Info service with DB-backed values @dippindots (#11757)

📘 Documentation

• add pairwise plots to news page @tmazor (#11545)

👷‍♀️ Testing, Configuration & Deployment

• Add URL to screenshot comparison report for easier manual testing @copilot-swe-agent (cbioportal-frontend#5278)
• Use latest database schema to avoid importer mismatch errors in PRs with schema updates @dippindots (#11762)

🕵️‍♀️ Full commit logs

• Backend: https://github.com/cBioPortal/cbioportal/compare/v6.3.7...v6.4.0
• Frontend: https://github.com/cBioPortal/cbioportal-frontend/compare/v6.3.7...v6.4.0

🏷Notes on versioning and release procedure

https://docs.cbioportal.org/4.-development/release-procedure#a-note-on-versioning