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Change log for OPNSENSE

Date	Changes
2025-09-17	Enhancement: - Added Grok pattern to parse new log formats. - `event.idm.read_only_udm.additional.fields`: Newly mapped `column27`, `column2`, `column3`, `column11`, `column26`, `column28`, `column25`, `column16`, `column9` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
2025-07-29	Enhancement: - Added a new Grok pattern to support for new pattern of logs. - Separated date filters to handle timestamps without year data. - event.idm.read_only_udm.principal.process.pid: Newly mapped `pid` log field to event.idm.read_only_udm.principal.process.pid.
2025-05-29	Enhancement: - event.idm.read_only_udm.principal.administrative_domain: Removed mapping of `domain` from `principal.administrative_domain` UDM field. - event.idm.read_only_udm.intermediary.hostname: Newly mapped `inter_host` raw log field to `intermediary.hostname` UDM field.
2025-02-18	Enhancement: - Added support to parse the unparsed logs.
2025-01-21	Enhancement: - Added support to parse the unparsed logs.
2024-12-05	Enhancement: - Added support to handle CSV logs.
2024-11-07	Enhancement: - Added support to handle CSV logs.
2023-11-22	- Newly created parser.