AWS drs: Failback Client 6.42.25 removes custom S3 endpoint option
Summary
Adds release notes for Failback Client 6.42.25 noting removal of support for specifying a custom S3 endpoint; S3 is now resolved via the server's DNS configuration.
Security assessment
Removing a user-supplied custom S3 endpoint reduces the chance of traffic being redirected to an unintended endpoint, a mild hardening change, but no specific vulnerability or incident is cited.
Evidence
+ * Removed support for specifying a custom S3 endpoint. The Failback Client now resolves Amazon S3 using the DNS configuration of the server that you are failing back to.
Diff
diff --git a/drs/latest/userguide/drs-failback-release-notes.md b/drs/latest/userguide/drs-failback-release-notes.md index d4534d0..c6834cb 100644 --- a//drs/latest/userguide/drs-failback-release-notes.md +++ b//drs/latest/userguide/drs-failback-release-notes.md @@ -14,0 +15,5 @@ Client Version | Details | Release date +6.42.25 | + + * Removed support for specifying a custom S3 endpoint. The Failback Client now resolves Amazon S3 using the DNS configuration of the server that you are failing back to. + +| 5 October 2026