[DOC-13372]: Create release note for docs-server:7.2.8

Added issues.
First cut

Signed-off-by: Ray Offiah <[email protected]>

Author: RayOffiah

modules/release-notes/pages/relnotes.adoc

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 = Release Notes for Couchbase Server 7.2
 
+include::partial$docs-server-7.2.8-release-note.adoc[]
+
 include::partial$docs-server-7.2.7-release-note.adoc[]
 
 include::partial$docs-server-7.2.6-release-note.adoc[]

modules/release-notes/partials/docs-server-7.2.8-release-note.adoc

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+[#release-728]
+== Release 7.2.8 (July 2025)
+
+Couchbase Server 7.2.8 was released in July 2025.
+This maintenance release contains fixes to issues.
+
+== Fixed Issues
+
+
+
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+
+
+=== XDCR
+
+[#table-known-issues-728-xdcr, cols="10,40,40"]
+|===
+|Issue | Description | Resolution
+
+| https://jira.issues.couchbase.com/browse/MB-66650/[MB-66650]
+
+| In some scenarios, due to race conditions, changing the filter expression or explicit/migration mapping may cause the replication to not stream from the beginning properly. As a consequence some Source bucket documents may get missed from being replicated to the Target bucket.
+
+A new UI alert will be shown if the pipeline notices that it is resuming from (stale) checkpoints, reminding users to manually delete and recreate the affected replication.
+
+Users are advised not to ignore this alert, as it will be dismissed if the replication is paused & resumed.
+| {nbsp}
+
+|===
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+
+
+=== Tools
+
+[#table-known-issues-728-tools, cols="10,40,40"]
+|===
+|Issue | Description | Resolution
+
+| https://jira.issues.couchbase.com/browse/MB-57755/[MB-57755]
+
+| To address systemd incorrect swappiness in RHEL8 and similar systems, a workaround involves setting the swappiness for the Couchbase Server cgroup to 0 or 1 within systemd scripts. Initial experiments indicate that adjusting only the Couchbase cgroup can yield significant performance improvements similar to cgroups v2, though some swapping remains. Running Couchbase in Docker complicates matters as Docker doesn't utilize systemd, requiring further research to handle visibility of cgroup settings. Documentation should be updated to reflect these findings, guiding users and support staff towards appropriate configurations, especially for systems still using cgroups v1. With cgroups v2, swappiness must be set system-wide, adhering to the practice of avoiding overarching system configuration changes. The approach is validated through tests, showing reduced latency and swapping, and changes are being integrated into various Couchbase builds, suggesting this tweak as a positive behavioral update.
+| {nbsp}
+
+|===
+
+