diff --git a/CHANGELOG.md b/CHANGELOG.md
index 64341de..e1e4413 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,7 +3,7 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
-## Unreleased
+## 1.4.2 - 2023-09-25
 
 ### Added
 
@@ -12,6 +12,9 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/).
      * NewSessionTokenSignatureProviderFromFile
 - Cloud only: added support to read region from system environment variable
   OCI_REGION if using user principal or session token authentication
+- On premise only: Added support for default namespaces in requests
+- Latest Oracle Cloud Infrastructure regions and region codes: OZZ, DRS
+- Updated realm domain for OC22/NAP
 
 ## 1.4.1 - 2023-08-21
 
diff --git a/nosqldb/common/region.go b/nosqldb/common/region.go
index 3b7e828..e53061b 100644
--- a/nosqldb/common/region.go
+++ b/nosqldb/common/region.go
@@ -191,6 +191,16 @@ const (
 
 	// RegionEUDCCZurich1 represents the dedicated region for Zurich
 	RegionEUDCCZurich1 Region = "eu-dcc-zurich-1"
+
+	// OC27 REGIONS
+
+	// RegionUSDCCSWJordan1 represents the dedicated region for SWJordan1
+	RegionUSDCCSWJordan1 Region = "us-dcc-swjordan-1"
+
+	// OC28 REGIONS
+
+	// RegionUSDCCSWJordan1 represents the dedicated region for SWJordan2
+	RegionUSDCCSWJordan2 Region = "us-dcc-swjordan-2"
 )
 
 var realm = map[string]string{
@@ -207,8 +217,10 @@ var realm = map[string]string{
 	"oc17": "oraclecloud17.com",
 	"oc19": "oraclecloud.eu",
 	"oc20": "oraclecloud20.com",
-	"oc22": "oraclecloud22.com",
+	"oc22": "psn-pco.it",
 	"oc24": "oraclecloud24.com",
+	"oc27": "oraclecloud27.com",
+	"oc28": "oraclecloud28.com",
 }
 
 var regionRealm = map[Region]string{
@@ -291,6 +303,10 @@ var regionRealm = map[Region]string{
 	RegionEUDCCRome1: "oc22",
 
 	RegionEUDCCZurich1: "oc24",
+
+	RegionUSDCCSWJordan1: "oc27",
+
+	RegionUSDCCSWJordan2: "oc28",
 }
 
 var shortNameRegion = map[string]Region{
@@ -361,6 +377,8 @@ var shortNameRegion = map[string]Region{
 	"beg": RegionEUJovanovac1,
 	"nap": RegionEUDCCRome1,
 	"avz": RegionEUDCCZurich1,
+	"ozz": RegionUSDCCSWJordan1,
+	"drs": RegionUSDCCSWJordan2,
 }
 
 func (region Region) secondLevelDomain() string {