[Log Explorer] Updates Log Explorer changelog (#25260)

* Updates Log Explorer changelog

* Update src/content/changelog/log-explorer/2025-08-15-extended-retention.mdx

Co-authored-by: marciocloudflare <[email protected]>

---------

Co-authored-by: marciocloudflare <[email protected]>

Author: angelampcosta

src/assets/images/changelog/log-explorer/edit-custom-fields.png

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+---
+title: Usage tracking
+description: Log Explorer customers can now monitor their data ingestion volume
+date: 2025-07-09
+---
+
+[Log Explorer](/log-explorer/) customers can now monitor their data ingestion volume to keep track of their billing. Monthly usage is displayed at the top of the [Log Search](/log-explorer/log-search/) and [Manage Datasets](/log-explorer/manage-datasets/) screens in Log Explorer.
+
+![Ingested data](src/assets/images/changelog/log-explorer/ingested-data.png)

src/assets/images/changelog/log-explorer/ingested-data.png

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+---
+title: Extended retention
+description: Log Explorer customers can now extend the retention period
+date: 2025-08-15
+---
+
+Customers can now rely on Log Explorer to meet their log retention compliance requirements.
+
+Contract customers can choose to store their logs in Log Explorer for up to two years, at an additional cost of $0.10 per GB per month. Customers interested in this feature can contact their account team to have it added to their contract.

src/assets/images/changelog/log-explorer/investigate-ip-address.png

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+---
+title: Logging headers and cookies using custom fields
+description: Log Explorer now supports logging and querying header and cookie fields
+date: 2025-09-03
+---
+
+[Log Explorer](/log-explorer/) now supports logging and filtering on header or cookie fields in the [`http_requests` dataset](/logs/logpush/logpush-job/datasets/zone/http_requests/).
+
+Create a custom field to log desired header or cookie values into the `http_requests` dataset and Log Explorer will import these as searchable fields. Once configured, use the custom SQL editor in Log Explorer to view or filter on these requests.
+
+![Edit Custom fields](src/assets/images/changelog/log-explorer/edit-custom-fields.png)
+
+For more details, refer to [Headers and cookies](/log-explorer/log-search/#headers-and-cookies).
+
+

src/assets/images/changelog/log-explorer/new-table.png

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+---
+title: Contextual pivots
+description: Log Search now lets you pivot directly to related Cloudflare tools and documentation for faster investigations and actions.
+date: 2025-09-11
+---
+
+Directly from [Log Search](/log-explorer/log-search/) results, customers can pivot to other parts of the Cloudflare dashboard to immediately take action as a result of their investigation. 
+
+From the `http_requests` or `fw_events` dataset results, right click on an IP Address or JA3 Fingerprint to pivot to the Investigate portal to lookup the reputation of an IP address or JA3 fingerprint.
+
+![Investigate IP address](src/assets/images/changelog/log-explorer/investigate-ip-address.png)
+
+Easily learn about error codes by linking directly to our documentation from the **EdgeResponseStatus** or **OriginResponseStatus** fields.
+
+![View documentation](src/assets/images/changelog/log-explorer/view-documentation.png)
+
+From the `gateway_http` dataset, click on a **policyid** to link directly to the Zero Trust dashboard to review or make changes to a specific Gateway policy. 
+
+![View policy](src/assets/images/changelog/log-explorer/policyid.png)