DOCCORE-151 Deprecate CentOS 8.x (#2841)

Fix the message about the deprecation of CentOS 8.x.

Author: NataliaIvakina

modules/ROOT/pages/changes-deprecations-removals-2026.adoc

@@ -8,6 +8,21 @@
 = Changes, deprecations, and removals in Neo4j 2026.x
 
 
+== Deprecations in Neo4j 2026.x
+
+This section lists all the Neo4j Server features deprecated in the 2026 series, including replacements where applicable.
+
+For deprecations in Cypher language, see link:{neo4j-docs-base-uri}/cypher-manual/current/deprecations-additions-removals-compatibility/[Cypher manual -> Deprecations, additions, and compatibility].
+
+=== Operating systems
+
+Neo4j 2026.01::
+
+CentOS Stream 8.x is deprecated as of 2026.01.
+
+This operating system will continue to be supported along with the next LTS release in 2026, but new releases after the 2026 LTS will no longer support this platform.
+It is recommended to upgrade to a supported OS version before the next LTS release.
+
 == Changes in Neo4j 2026.x
 
 The section covers changes to Neo4j server functionality across different areas.

modules/ROOT/pages/changes-deprecations-removals.adoc

@@ -384,7 +384,6 @@ The following operating systems are deprecated as of Neo4j 2025.10:
 * Windows Server 2022
 * MacOS 13 Ventura
 * MacOS 14 Sonoma
-* CentOS 8
 
 These operating systems will continue to be supported along with the next LTS release in 2026, but new releases after the 2026 LTS will no longer support these platforms.
 It is recommended to upgrade to a supported OS version before the next LTS release.

modules/ROOT/pages/installation/requirements.adoc

@@ -116,7 +116,9 @@ Java 25 is supported starting from Neo4j 2025.10.
 
 [NOTE]
 ====
-Red Hat Enterprise Linux 8.x, Debian 11.x, CentOS 8, Windows Server 2022, macOS 13 Ventura, and macOS 14 Sonoma are deprecated as of Neo4j 2025.10.
+* CentOS Stream 8.x is deprecated as of 2026.01, with support for this platform being removed in a future release.
+* Red Hat Enterprise Linux 8.x, Debian 11.x, Windows Server 2022, macOS 13 Ventura, and macOS 14 Sonoma are deprecated as of Neo4j 2025.10.
+
 They will continue to be supported along with the next LTS release in 2026, but new releases after the 2026 LTS will no longer support these platforms.
 It is recommended to upgrade to a supported OS version before the next LTS release.
 ====