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Change log for AKAMAI_DATASTREAM_2

Date	Changes
2026-07-22	Enhancement: - `event.idm.read_only_udm.metadata.event_timestamp`: Newly mapped `reqTimeSec` raw log field with `event.idm.read_only_udm.metadata.event_timestamp` UDM field. - `event.idm.read_only_udm.security_result.detection_fields`: Newly mapped `arlid`, `cacheable`, `deliveryPolicyId`, `deliveryPolicyReqStatus`, `downloadTime` raw log fields with `event.idm.read_only_udm.security_result.detection_fields` UDM field. - `event.idm.read_only_udm.additional.fields`: Newly mapped `edgeAttempts`, `edgeIPBinding`, `lastByte`, `maxAgeSec`, `prefetchMidgressHits`, `reqEndTimeMSec`, `startupError`, `streamId`, `throughput`, `timeToFirstByte`, `tlsOverheadTimeMSec` raw log fields with `event.idm.read_only_udm.additional.fields` UDM field. - `event.idm.read_only_udm.intermediary.ip` and `event.idm.read_only_udm.intermediary.asset.ip`: Newly mapped `edgeIP` raw log field with `event.idm.read_only_udm.intermediary.ip` and `event.idm.read_only_udm.intermediary.asset.ip` UDM fields. - `event.idm.read_only_udm.target.location.country_or_region`: Newly mapped `serverCountry` raw log field with `event.idm.read_only_udm.target.location.country_or_region` UDM field. - `event.idm.read_only_udm.principal.location.state`: Newly mapped `state` raw log field with `event.idm.read_only_udm.principal.location.state` UDM field. - `event.idm.read_only_udm.target.process.file.size`: Newly mapped `uncompressedSize` raw log field with `event.idm.read_only_udm.target.process.file.size` UDM field. - `event.idm.read_only_udm.metadata.product_version`: Newly mapped `version` raw log field with `event.idm.read_only_udm.metadata.product_version` UDM field.
2025-04-10	`event.idm.read_only_udm.metadata.event_type`: Removed mapping of `NETWORK_CONNECTION` from `event.idm.read_only_udm.metadata.event_type` UDM field and mapped `NETWORK_HTTP` instead when `has_principal` is true, `has_target` is true and `has_network` is `true`.
2025-02-27	- Mapped `reqhost` and `reqHost` to `target.hostname` and `target.asset.hostname`. - Mapped `securityRules` to `jsonPayload.securityrules`. - Mapped `country` to `principal.location.country_or_region`. - Mapped `fileSizeBucket` to `additional.fields`. - Mapped `errorCode` to `additional.fields`.
2025-02-17	- Mapped `totalBytes` to `principal.network.received_bytes`. - Mapped `uncompressedsize` to `target.process.file.size`. - Mapped `turnAroundTimeMSec`, `billingRegion`, `overheadBytes`, and `objSize` to `additional.fields`. - Mapped `asn` to `security_result.detection_fields`. - Mapped `cliIP` to `principal.ip` and `principal.asset.ip`. - Mapped `reqPort` to `target.port`. - Mapped `reqId` to `network.session_id`.
2025-02-07	Newly created parser for AKAMAI_DATASTREAM_2.