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AWS filegateway documentation change

Service: filegateway · 2026-04-19 · Documentation medium

File: filegateway/latest/files3/release-notes.md

Summary

Added release notes for software versions 2.1.5 and 1.28.5, including maintenance updates for security and performance, a note about new dependency on DCE/RPC Endpoint Mapper (port 135), and continued deprecation of NTLM protocol.

Security assessment

The change documents security improvements (deprecation of NTLM, which is a less secure authentication protocol) and new network requirements (port 135) that could impact security posture if not properly configured. However, this is routine release documentation rather than addressing a specific, disclosed security vulnerability.

Diff

diff --git a/filegateway/latest/files3/release-notes.md b/filegateway/latest/files3/release-notes.md
index e676a649f..7d987f8ae 100644
--- a//filegateway/latest/files3/release-notes.md
+++ b//filegateway/latest/files3/release-notes.md
@@ -44,0 +45,5 @@ Release Date | Software Version | Release Notes
+2026-04-16 | 2.1.5 |  **Maintenance Updates:**
+
+  * Updated operating system and software elements to improve security and performance.
+
+  
@@ -46,0 +52,5 @@ Release Date | Software Version | Release Notes
+###### Note
+
+This release introduces a harder dependency on the DCE/RPC Endpoint Mapper service (TCP port 135) on AD Domain Controllers. If your environment blocks outbound traffic on this port, unblock it to avoid connectivity issues. See File Gateway Port Requirements for details.
+
+  * Continue deprecation of NTLM for interactions between Active Directory Domain Controllers and the Gateway.
@@ -142,0 +153,5 @@ Release Date | Software Version | Release Notes
+2026-04-16 | 1.28.5 |  **Maintenance Updates:**
+
+  * Updated operating system and software elements to improve security and performance.
+
+  
@@ -148,0 +164,5 @@ This release is only available for gateways already on 1.28.*
+###### Note
+
+This release introduces a harder dependency on the DCE/RPC Endpoint Mapper service (TCP port 135) on AD Domain Controllers. If your environment blocks outbound traffic on this port, unblock it to avoid connectivity issues. See File Gateway Port Requirements for details.
+
+  * Continue deprecation of NTLM for interactions between Active Directory Domain Controllers and the Gateway.