[DOC-13459]: Create a release note for Couchbase Server 7.6.8

modules/release-notes/pages/relnotes.adoc

@@ -2,6 +2,9 @@
 :page-aliases: analytics:releasenote
 :description: Couchbase Server 7.6.x introduces multiple new features and fixes, as well as some deprecations and removals.
 :page-toclevels: 2
+:stem:
+
+include::partial$docs-server-7.6.8-release-note.adoc[]
 
 include::partial$docs-server-7.6.7-release-note.adoc[]
 

modules/release-notes/partials/docs-server-7.6.8-release-note.adoc

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+
+
+[#release-768]
+== Release 7.6.8 (November 2025)
+
+Couchbase Server 7.6.8 was released in November 2025.
+This maintenance release contains fixes to issues.
+
+== Fixed Issues
+
+
+
+
+=== Cluster Manager
+
+[#table-known-issues-768-cluster-manager, cols="10,40,40"]
+|===
+|Issue | Description | Resolution
+
+
+| https://jira.issues.couchbase.com/browse/MB-67106/[MB-67106]
+
+a| *Metric Rename – Cache Miss Ratio → Get Miss Ratio*
+The _Cache Miss Ratio_ metric name suggested it measured memory or disk caching performance. In reality, as of version 7.6.2, it was redefined to measure the proportion of read (`get`) operations that fail because the requested key is not present in the bucket at all.  To eliminate this confusion, the metric has been renamed to *Get Miss Ratio*.
+
+| Issue resolved
+
+
+
+| https://jira.issues.couchbase.com/browse/MB-67758/[MB-67758]
+
+a| Prior to the 7.6.8 release the auto-failover pop up alerts, as documented in https://docs.couchbase.com/server/current/manage/manage-settings/configure-alerts.html#saving-and-testing-the-alert-configuration[https://docs.couchbase.com/server/current/manage/manage-settings/configure-alerts.html#saving-and-testing-the-alert-configuration] did not work.
+This has been fixed.
+
+| Issue resolved
+
+
+|===
+
+
+=== Data Service
+
+[#table-known-issues-768-data-service, cols="10,40,40"]
+|===
+|Issue | Description | Resolution
+
+
+| https://jira.issues.couchbase.com/browse/MB-66876/[MB-66876]
+
+a| The magma_min_value_block_size_threshold has been adjusted from 64KB to INT_MAX for version 7.6.x, with no changes required for 8.0.0. This update addresses an issue where Magma storage engine buckets did not apply block compression to documents over 64 KiB. The fix ensures that documents are consistently compressed. Additionally, it's noted that if magma_per_document_compression_enabled is set to false, magma_min_value_block_size_threshold should be set to infinity. The related fix is implemented in specific builds, ensuring compression is applied appropriately across the versions mentioned.
+
+// Generated by [chatgpt:gpt-4o]
+
+| Issue resolved
+
+
+
+| https://jira.issues.couchbase.com/browse/MB-67106/[MB-67106]
+
+a| *Metric Rename – Cache Miss Ratio → Get Miss Ratio*
+The _Cache Miss Ratio_ metric name suggested it measured memory or disk caching performance. In reality, as of version 7.6.2, it was redefined to measure the proportion of read (`get`) operations that fail because the requested key is not present in the bucket at all.  To eliminate this confusion, the metric has been renamed to *Get Miss Ratio*.
+
+| Issue resolved
+
+
+|===
+
+
+
+
+=== XDCR
+
+[#table-known-issues-768-xdcr, cols="10,40,40"]
+|===
+|Issue | Description | Resolution
+
+
+| https://jira.issues.couchbase.com/browse/MB-66649/[MB-66649]
+
+a| When modifying filter expressions or mapping configurations (explicit/migration), race conditions may prevent proper replication from the source. This can result in source bucket documents failing to replicate to the target bucket.
+To address this issue, the system now displays an alert when detecting replication resuming from stale checkpoints. This alert notifies users to delete and recreate the affected replication.
+IMPORTANT: Do not dismiss this alert by pausing and resuming the replication, as this will hide the warning without resolving the underlying issue.
+
+| Issue resolved
+
+
+|===
+
+
+=== Query Service
+
+[#table-known-issues-768-query-service, cols="10,40,40"]
+|===
+|Issue | Description | Resolution
+
+
+| https://jira.issues.couchbase.com/browse/MB-66703/[MB-66703]
+
+a| Added a plan version to prepared statements and logic to trigger  reprepare when outdated plans are detected. This avoids duplicate OFFSET execution in mixedmode clusters due to changes in ORDER BY and LIMIT/OFFSET handling.
+
+| Issue resolved
+
+
+
+| https://jira.issues.couchbase.com/browse/MB-67849/[MB-67849]
+
+a| The recent builds of Couchbase Server versions 7.2.7 through 8.1.0 and Enterprise Analytics 2.1.0 include updates from the go_json library to address int64 overflow issues reported under MB-67849. The updates involve implementing proper checks for int64 overflow  to properly represent large numbers (greater than stem:[2^63] or less than stem:[-2^63]).
+
+| Issue resolved
+
+
+|===
+
+
+
+
+
+
+
+
+
+
+
+

preview/HEAD.yml

@@ -1,6 +1,4 @@
 sources:
-  docs-server:
-    branches: [DOC-13396-Create-release-note-for-7.6.7-Release,DOC-13372-Create-release-note-for-docs-server-7.2.8]
   docs-devex:
     branches: release/7.6
   cb-swagger: