Elastic Common Schema (ECS) release notes

Review the changes, fixes, and more in each version of ECS.

To check for security updates, go to Security announcements for the Elastic stack.

• Add gen_ai fields to schema as beta. #2475
• Allow Unicode characters in generated ECS yml files. #2478
• Update semconv version used in file generation to v1.34.0 #2483

• Add origin_referrer_url and origin_url fields, which indicate the origin information to the file, process and dll schemas #2441
• Add thumbprint_sha256 to code_signature schema. #2452
• Fix otel urls for fieldsets with underscores. #2486

• Define base encoding of x509.serial_number. #2383
• Restrict the encoding of x509.serial_number to base 16. #2398
• Promote beta fields to GA. #2411
• Add mapping between ECS and OpenTelemetry. #2415
• Set synthetic_source_keep = none on fields that represent sets. #2422
• Increase ignore_above value for url.query. #2424
• Add origin_referrer_url and origin_url fields, which indicate the origin information to the file, process and dll schemas. #2441

• Fix link rendering issues and usage of http in links. #2423
• Fix link rendering for additional fields. #2458