DOC-1812: Add single-sourced Schema Registry Contexts page

local-antora-playbook.yml

@@ -15,7 +15,7 @@ content:
   - url: .
     branches: HEAD
   - url: https://github.com/redpanda-data/documentation
-    branches: [main, v/*, shared, site-search]
+    branches: [Feediver1-patch-7, v/*, shared, site-search]
   - url: https://github.com/redpanda-data/docs-site
     branches: [main]
     start_paths: [home]

modules/ROOT/nav.adoc

@@ -468,6 +468,7 @@
 *** xref:manage:schema-reg/schema-reg-ui.adoc[]
 *** xref:manage:schema-reg/schema-reg-api.adoc[]
 *** xref:manage:schema-reg/schema-reg-authorization.adoc[Schema Registry Authorization]
+*** xref:manage:schema-reg/schema-reg-contexts.adoc[Schema Registry Contexts]
 *** xref:manage:schema-reg/schema-id-validation.adoc[]
 *** xref:manage:schema-reg/record-deserialization.adoc[Deserialization]
 *** xref:manage:schema-reg/programmable-push-filters.adoc[Programmable Push Filters]

modules/get-started/pages/whats-new-cloud.adoc

@@ -25,6 +25,12 @@ Serverless clusters now support up to 100 Redpanda Connect pipelines and 100 MCP
 * Processors:
 ** xref:develop:connect/components/processors/string_split.adoc[string_split]: Splits strings into multiple parts using a delimiter, creating new messages or fields for each part.
 
+=== Schema Registry Contexts
+
+xref:manage:schema-reg/schema-reg-contexts.adoc[Schema Registry contexts] provide isolated namespaces that separate schemas, subjects, and configuration within a single Schema Registry instance. Each context maintains its own schema ID counter, mode settings, and compatibility settings. 
+
+On Serverless clusters, Redpanda uses contexts internally for per-tenant isolation. Contexts are not exposed to end users on Serverless. On BYOC and Dedicated clusters, contexts are available and user-configurable.
+
 == March 2026
 
 === Redpanda Connect updates

modules/manage/pages/schema-reg/schema-reg-contexts.adoc

@@ -0,0 +1,4 @@
+= Schema Registry Contexts
+:description: Learn about Schema Registry contexts, which provide isolated namespaces for schemas, subjects, and configuration in Redpanda.
+
+include::ROOT:manage:schema-reg/schema-reg-contexts.adoc[tag=single-source]