diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4668bdc4..0674b2e3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,7 @@
 <!-- markdownlint-disable single-title -->
 # v2.0.0 (Unreleased)
 
-# v2.0.0-beta.18 (Unreleased)
+# v2.0.0-beta.18 (2022-11-15)
 
 ENHANCEMENTS
 
diff --git a/internal/endpoints/endpoints.go b/internal/endpoints/endpoints.go
index 7eac1e72..28203780 100644
--- a/internal/endpoints/endpoints.go
+++ b/internal/endpoints/endpoints.go
@@ -67,6 +67,7 @@ var partitions = []partition{
 			"eu-central-2",   // Europe (Zurich).
 			"eu-north-1",     // Europe (Stockholm).
 			"eu-south-1",     // Europe (Milan).
+			"eu-south-2",     // Europe (Spain).
 			"eu-west-1",      // Europe (Ireland).
 			"eu-west-2",      // Europe (London).
 			"eu-west-3",      // Europe (Paris).
diff --git a/v2/awsv1shim/go.mod b/v2/awsv1shim/go.mod
index 97245eec..9fcdcfc5 100644
--- a/v2/awsv1shim/go.mod
+++ b/v2/awsv1shim/go.mod
@@ -8,7 +8,7 @@ require (
 	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.12.4
 	github.com/aws/aws-sdk-go-v2/service/sts v1.16.4
 	github.com/google/go-cmp v0.5.9
-	github.com/hashicorp/aws-sdk-go-base/v2 v2.0.0-beta.17
+	github.com/hashicorp/aws-sdk-go-base/v2 v2.0.0-beta.18
 	github.com/hashicorp/go-cleanhttp v0.5.2
 )