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AWS controltower: Add trailing period to landing zone 4.0 doc-history entry

Service: controltower · 2026-09-27 · Documentation low

File: controltower/latest/userguide/doc-history.md

Summary

Minor punctuation fix adding a period to the November 17, 2025 landing zone version 4.0 entry.

Security assessment

Only a trailing period was added to a doc-history entry; no security-relevant content changed.

Evidence

+AWS Control Tower landing zone version 4.0 with dedicated controls environment|  AWS Control Tower landing zone version 4.0 is now available with optional service integrations and a dedicated controls environment. | November 17, 2025  

Diff

diff --git a/controltower/latest/userguide/doc-history.md b/controltower/latest/userguide/doc-history.md
index 974a7d1e0..f6f70355b 100644
--- a//controltower/latest/userguide/doc-history.md
+++ b//controltower/latest/userguide/doc-history.md
@@ -21 +21 @@ Update to managed policy| Updated [AWSControlTowerAccountServiceRolePolicy](http
-AWS Control Tower landing zone version 4.0 with dedicated controls environment|  AWS Control Tower landing zone version 4.0 is now available with optional service integrations and a dedicated controls environment | November 17, 2025  
+AWS Control Tower landing zone version 4.0 with dedicated controls environment|  AWS Control Tower landing zone version 4.0 is now available with optional service integrations and a dedicated controls environment. | November 17, 2025