diff --git a/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json b/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
index 07cfee8fe5e..7bbade21575 100644
--- a/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
+++ b/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
@@ -6213,6 +6213,7 @@
           "ap-south-1" : { },
           "ap-southeast-1" : { },
           "ap-southeast-2" : { },
+          "ap-southeast-3" : { },
           "ca-central-1" : { },
           "eu-central-1" : { },
           "eu-north-1" : { },
@@ -6820,13 +6821,61 @@
           "ap-south-1" : { },
           "ap-southeast-1" : { },
           "ap-southeast-2" : { },
-          "ca-central-1" : { },
+          "ca-central-1" : {
+            "variants" : [ {
+              "hostname" : "iotevents-fips.ca-central-1.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
+          },
           "eu-central-1" : { },
           "eu-west-1" : { },
           "eu-west-2" : { },
-          "us-east-1" : { },
-          "us-east-2" : { },
-          "us-west-2" : { }
+          "fips-ca-central-1" : {
+            "credentialScope" : {
+              "region" : "ca-central-1"
+            },
+            "deprecated" : true,
+            "hostname" : "iotevents-fips.ca-central-1.amazonaws.com"
+          },
+          "fips-us-east-1" : {
+            "credentialScope" : {
+              "region" : "us-east-1"
+            },
+            "deprecated" : true,
+            "hostname" : "iotevents-fips.us-east-1.amazonaws.com"
+          },
+          "fips-us-east-2" : {
+            "credentialScope" : {
+              "region" : "us-east-2"
+            },
+            "deprecated" : true,
+            "hostname" : "iotevents-fips.us-east-2.amazonaws.com"
+          },
+          "fips-us-west-2" : {
+            "credentialScope" : {
+              "region" : "us-west-2"
+            },
+            "deprecated" : true,
+            "hostname" : "iotevents-fips.us-west-2.amazonaws.com"
+          },
+          "us-east-1" : {
+            "variants" : [ {
+              "hostname" : "iotevents-fips.us-east-1.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
+          },
+          "us-east-2" : {
+            "variants" : [ {
+              "hostname" : "iotevents-fips.us-east-2.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
+          },
+          "us-west-2" : {
+            "variants" : [ {
+              "hostname" : "iotevents-fips.us-west-2.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
+          }
         }
       },
       "ioteventsdata" : {
@@ -6865,7 +6914,11 @@
             "credentialScope" : {
               "region" : "ca-central-1"
             },
-            "hostname" : "data.iotevents.ca-central-1.amazonaws.com"
+            "hostname" : "data.iotevents.ca-central-1.amazonaws.com",
+            "variants" : [ {
+              "hostname" : "data.iotevents-fips.ca-central-1.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
           },
           "eu-central-1" : {
             "credentialScope" : {
@@ -6885,23 +6938,63 @@
             },
             "hostname" : "data.iotevents.eu-west-2.amazonaws.com"
           },
+          "fips-ca-central-1" : {
+            "credentialScope" : {
+              "region" : "ca-central-1"
+            },
+            "deprecated" : true,
+            "hostname" : "data.iotevents-fips.ca-central-1.amazonaws.com"
+          },
+          "fips-us-east-1" : {
+            "credentialScope" : {
+              "region" : "us-east-1"
+            },
+            "deprecated" : true,
+            "hostname" : "data.iotevents-fips.us-east-1.amazonaws.com"
+          },
+          "fips-us-east-2" : {
+            "credentialScope" : {
+              "region" : "us-east-2"
+            },
+            "deprecated" : true,
+            "hostname" : "data.iotevents-fips.us-east-2.amazonaws.com"
+          },
+          "fips-us-west-2" : {
+            "credentialScope" : {
+              "region" : "us-west-2"
+            },
+            "deprecated" : true,
+            "hostname" : "data.iotevents-fips.us-west-2.amazonaws.com"
+          },
           "us-east-1" : {
             "credentialScope" : {
               "region" : "us-east-1"
             },
-            "hostname" : "data.iotevents.us-east-1.amazonaws.com"
+            "hostname" : "data.iotevents.us-east-1.amazonaws.com",
+            "variants" : [ {
+              "hostname" : "data.iotevents-fips.us-east-1.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
           },
           "us-east-2" : {
             "credentialScope" : {
               "region" : "us-east-2"
             },
-            "hostname" : "data.iotevents.us-east-2.amazonaws.com"
+            "hostname" : "data.iotevents.us-east-2.amazonaws.com",
+            "variants" : [ {
+              "hostname" : "data.iotevents-fips.us-east-2.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
           },
           "us-west-2" : {
             "credentialScope" : {
               "region" : "us-west-2"
             },
-            "hostname" : "data.iotevents.us-west-2.amazonaws.com"
+            "hostname" : "data.iotevents.us-west-2.amazonaws.com",
+            "variants" : [ {
+              "hostname" : "data.iotevents-fips.us-west-2.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
           }
         }
       },
@@ -8661,6 +8754,7 @@
           "ap-south-1" : { },
           "ap-southeast-1" : { },
           "ap-southeast-2" : { },
+          "ap-southeast-3" : { },
           "ca-central-1" : { },
           "eu-central-1" : { },
           "eu-north-1" : { },
@@ -10070,6 +10164,72 @@
           }
         }
       },
+      "rds-data" : {
+        "endpoints" : {
+          "ap-northeast-1" : { },
+          "ap-northeast-2" : { },
+          "ap-south-1" : { },
+          "ap-southeast-1" : { },
+          "ap-southeast-2" : { },
+          "ca-central-1" : { },
+          "eu-central-1" : { },
+          "eu-west-1" : { },
+          "eu-west-2" : { },
+          "eu-west-3" : { },
+          "fips-us-east-1" : {
+            "credentialScope" : {
+              "region" : "us-east-1"
+            },
+            "deprecated" : true,
+            "hostname" : "rds-data-fips.us-east-1.amazonaws.com"
+          },
+          "fips-us-east-2" : {
+            "credentialScope" : {
+              "region" : "us-east-2"
+            },
+            "deprecated" : true,
+            "hostname" : "rds-data-fips.us-east-2.amazonaws.com"
+          },
+          "fips-us-west-1" : {
+            "credentialScope" : {
+              "region" : "us-west-1"
+            },
+            "deprecated" : true,
+            "hostname" : "rds-data-fips.us-west-1.amazonaws.com"
+          },
+          "fips-us-west-2" : {
+            "credentialScope" : {
+              "region" : "us-west-2"
+            },
+            "deprecated" : true,
+            "hostname" : "rds-data-fips.us-west-2.amazonaws.com"
+          },
+          "us-east-1" : {
+            "variants" : [ {
+              "hostname" : "rds-data-fips.us-east-1.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
+          },
+          "us-east-2" : {
+            "variants" : [ {
+              "hostname" : "rds-data-fips.us-east-2.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
+          },
+          "us-west-1" : {
+            "variants" : [ {
+              "hostname" : "rds-data-fips.us-west-1.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
+          },
+          "us-west-2" : {
+            "variants" : [ {
+              "hostname" : "rds-data-fips.us-west-2.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
+          }
+        }
+      },
       "redshift" : {
         "endpoints" : {
           "af-south-1" : { },
@@ -17382,16 +17542,39 @@
       },
       "iotevents" : {
         "endpoints" : {
-          "us-gov-west-1" : { }
+          "fips-us-gov-west-1" : {
+            "credentialScope" : {
+              "region" : "us-gov-west-1"
+            },
+            "deprecated" : true,
+            "hostname" : "iotevents-fips.us-gov-west-1.amazonaws.com"
+          },
+          "us-gov-west-1" : {
+            "variants" : [ {
+              "hostname" : "iotevents-fips.us-gov-west-1.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
+          }
         }
       },
       "ioteventsdata" : {
         "endpoints" : {
+          "fips-us-gov-west-1" : {
+            "credentialScope" : {
+              "region" : "us-gov-west-1"
+            },
+            "deprecated" : true,
+            "hostname" : "data.iotevents-fips.us-gov-west-1.amazonaws.com"
+          },
           "us-gov-west-1" : {
             "credentialScope" : {
               "region" : "us-gov-west-1"
             },
-            "hostname" : "data.iotevents.us-gov-west-1.amazonaws.com"
+            "hostname" : "data.iotevents.us-gov-west-1.amazonaws.com",
+            "variants" : [ {
+              "hostname" : "data.iotevents-fips.us-gov-west-1.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
           }
         }
       },