diff --git a/go.mod b/go.mod
index 8cbb724a6105..3ddd085ab720 100644
--- a/go.mod
+++ b/go.mod
@@ -113,7 +113,7 @@ require (
 	github.com/Azure/go-autorest/autorest v0.11.29
 	github.com/DataDog/sketches-go v1.4.6
 	github.com/DmitriyVTitov/size v1.5.0
-	github.com/IBM/go-sdk-core/v5 v5.17.4
+	github.com/IBM/go-sdk-core/v5 v5.17.5
 	github.com/IBM/ibm-cos-sdk-go v1.11.0
 	github.com/axiomhq/hyperloglog v0.0.0-20240507144631-af9851f82b27
 	github.com/buger/jsonparser v1.1.1
diff --git a/go.sum b/go.sum
index a08bb5160c7a..430f7d07ce46 100644
--- a/go.sum
+++ b/go.sum
@@ -253,8 +253,8 @@ github.com/DmitriyVTitov/size v1.5.0 h1:/PzqxYrOyOUX1BXj6J9OuVRVGe+66VL4D9FlUaW5
 github.com/DmitriyVTitov/size v1.5.0/go.mod h1:le6rNI4CoLQV1b9gzp1+3d7hMAD/uu2QcJ+aYbNgiU0=
 github.com/HdrHistogram/hdrhistogram-go v1.1.2 h1:5IcZpTvzydCQeHzK4Ef/D5rrSqwxob0t8PQPMybUNFM=
 github.com/HdrHistogram/hdrhistogram-go v1.1.2/go.mod h1:yDgFjdqOqDEKOvasDdhWNXYg9BVp4O+o5f6V/ehm6Oo=
-github.com/IBM/go-sdk-core/v5 v5.17.4 h1:VGb9+mRrnS2HpHZFM5hy4J6ppIWnwNrw0G+tLSgcJLc=
-github.com/IBM/go-sdk-core/v5 v5.17.4/go.mod h1:KsAAI7eStAWwQa4F96MLy+whYSh39JzNjklZRbN/8ns=
+github.com/IBM/go-sdk-core/v5 v5.17.5 h1:AjGC7xNee5tgDIjndekBDW5AbypdERHSgib3EZ1KNsA=
+github.com/IBM/go-sdk-core/v5 v5.17.5/go.mod h1:KsAAI7eStAWwQa4F96MLy+whYSh39JzNjklZRbN/8ns=
 github.com/IBM/ibm-cos-sdk-go v1.11.0 h1:Jp55NLN3OvBwucMGpP5wNybyjncsmTZ9+GPHai/1cE8=
 github.com/IBM/ibm-cos-sdk-go v1.11.0/go.mod h1:FnWOym0CvrPM0nHoXvceClOEvGVXecPpmVIO5RFjlFk=
 github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
diff --git a/vendor/github.com/IBM/go-sdk-core/v5/core/authenticator_factory.go b/vendor/github.com/IBM/go-sdk-core/v5/core/authenticator_factory.go
index 455fba064cb8..cd1a63c905b9 100644
--- a/vendor/github.com/IBM/go-sdk-core/v5/core/authenticator_factory.go
+++ b/vendor/github.com/IBM/go-sdk-core/v5/core/authenticator_factory.go
@@ -1,6 +1,6 @@
 package core
 
-// (C) Copyright IBM Corp. 2019, 2023.
+// (C) Copyright IBM Corp. 2019, 2024.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -22,6 +22,7 @@ import (
 // GetAuthenticatorFromEnvironment instantiates an Authenticator using service properties
 // retrieved from external config sources.
 func GetAuthenticatorFromEnvironment(credentialKey string) (authenticator Authenticator, err error) {
+	GetLogger().Debug("Get authenticator from environment, key=%s\n", credentialKey)
 	properties, err := getServiceProperties(credentialKey)
 	if len(properties) == 0 {
 		return
@@ -71,5 +72,9 @@ func GetAuthenticatorFromEnvironment(credentialKey string) (authenticator Authen
 		)
 	}
 
+	if authenticator != nil {
+		GetLogger().Debug("Returning authenticator, type=%s\n", authenticator.AuthenticationType())
+	}
+
 	return
 }
diff --git a/vendor/github.com/IBM/go-sdk-core/v5/core/base_service.go b/vendor/github.com/IBM/go-sdk-core/v5/core/base_service.go
index 6a9f85a72bf8..62e362d4103c 100644
--- a/vendor/github.com/IBM/go-sdk-core/v5/core/base_service.go
+++ b/vendor/github.com/IBM/go-sdk-core/v5/core/base_service.go
@@ -1,6 +1,6 @@
 package core
 
-// (C) Copyright IBM Corp. 2019, 2022.
+// (C) Copyright IBM Corp. 2019, 2024.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -18,7 +18,6 @@ import (
 	"bytes"
 	"context"
 	"crypto/tls"
-	"crypto/x509"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -131,6 +130,8 @@ func (service *BaseService) Clone() *BaseService {
 
 // ConfigureService updates the service with external configuration values.
 func (service *BaseService) ConfigureService(serviceName string) error {
+	GetLogger().Debug("Configuring BaseService instance with service name: %s\n", serviceName)
+
 	// Try to load service properties from external config.
 	serviceProps, err := getServiceProperties(serviceName)
 	if err != nil {
@@ -144,7 +145,7 @@ func (service *BaseService) ConfigureService(serviceName string) error {
 
 		// URL
 		if url, ok := serviceProps[PROPNAME_SVC_URL]; ok && url != "" {
-			err := service.SetURL(url)
+			err := service.SetServiceURL(url)
 			if err != nil {
 				err = RepurposeSDKProblem(err, "set-url-fail")
 				return err
@@ -221,6 +222,7 @@ func (service *BaseService) SetServiceURL(url string) error {
 	}
 
 	service.Options.URL = url
+	GetLogger().Debug("Set service URL: %s\n", url)
 	return nil
 }
 
@@ -289,6 +291,7 @@ func (service *BaseService) DisableSSLVerification() {
 		// Disable server ssl cert & hostname verification.
 		tr.TLSClientConfig.InsecureSkipVerify = true // #nosec G402
 	}
+	GetLogger().Debug("Disabled SSL verification in HTTP client")
 }
 
 // IsSSLDisabled returns true if and only if the service's http.Client instance
@@ -332,11 +335,12 @@ func (service *BaseService) buildUserAgent() string {
 }
 
 // SetUserAgent sets the user agent value.
-func (service *BaseService) SetUserAgent(userAgentString string) {
-	if userAgentString == "" {
-		userAgentString = service.buildUserAgent()
+func (service *BaseService) SetUserAgent(userAgent string) {
+	if userAgent == "" {
+		userAgent = service.buildUserAgent()
 	}
-	service.UserAgent = userAgentString
+	service.UserAgent = userAgent
+	GetLogger().Debug("Set User-Agent: %s\n", userAgent)
 }
 
 // Request invokes the specified HTTP request and returns the response.
@@ -414,9 +418,9 @@ func (service *BaseService) Request(req *http.Request, result interface{}) (deta
 	}
 
 	// Invoke the request, then check for errors during the invocation.
+	GetLogger().Debug("Sending HTTP request message...")
 	var httpResponse *http.Response
 	httpResponse, err = service.Client.Do(req)
-
 	if err != nil {
 		if strings.Contains(err.Error(), SSL_CERTIFICATION_ERROR) {
 			err = fmt.Errorf(ERRORMSG_SSL_VERIFICATION_FAILED + "\n" + err.Error())
@@ -424,6 +428,7 @@ func (service *BaseService) Request(req *http.Request, result interface{}) (deta
 		err = SDKErrorf(err, "", "no-connection-made", getComponentInfo())
 		return
 	}
+	GetLogger().Debug("Received HTTP response message, status code %d", httpResponse.StatusCode)
 
 	// If debug is enabled, then dump the response.
 	if GetLogger().IsLogLevelEnabled(LevelDebug) {
@@ -754,6 +759,7 @@ func (service *BaseService) EnableRetries(maxRetries int, maxRetryInterval time.
 		// Hang the retryable client off the base service via the "shim" client.
 		service.Client = client.StandardClient()
 	}
+	GetLogger().Debug("Enabled retries; maxRetries=%d, maxRetryInterval=%s\n", maxRetries, maxRetryInterval.String())
 }
 
 // DisableRetries will disable automatic retries in the service.
@@ -765,6 +771,8 @@ func (service *BaseService) DisableRetries() {
 		// the retryable client instance.
 		tr := service.Client.Transport.(*retryablehttp.RoundTripper)
 		service.Client = tr.Client.HTTPClient
+
+		GetLogger().Debug("Disabled retries\n")
 	}
 }
 
@@ -826,16 +834,46 @@ var (
 	// scheme specified in the URL is invalid. This error isn't typed
 	// specifically so we resort to matching on the error string.
 	schemeErrorRe = regexp.MustCompile(`unsupported protocol scheme`)
+
+	// A regular expression to match the error returned by net/http when a
+	// request header or value is invalid. This error isn't typed
+	// specifically so we resort to matching on the error string.
+	invalidHeaderErrorRe = regexp.MustCompile(`invalid header`)
+
+	// A regular expression to match the error returned by net/http when the
+	// TLS certificate is not trusted. This error isn't typed
+	// specifically so we resort to matching on the error string.
+	notTrustedErrorRe = regexp.MustCompile(`certificate is not trusted|certificate is signed by unknown authority`)
 )
 
 // IBMCloudSDKRetryPolicy provides a default implementation of the CheckRetry interface
 // associated with a retryablehttp.Client.
 // This function will return true if the specified request/response should be retried.
 func IBMCloudSDKRetryPolicy(ctx context.Context, resp *http.Response, err error) (bool, error) {
-	// This logic was adapted from go-relyablehttp.ErrorPropagatedRetryPolicy().
+	// This logic was adapted from go-retryablehttp.ErrorPropagatedRetryPolicy().
+
+	if GetLogger().IsLogLevelEnabled(LevelDebug) {
+		// Compile the details to be included in the debug message.
+		var details []string
+		if resp != nil {
+			details = append(details, fmt.Sprintf("status_code=%d", resp.StatusCode))
+			if resp.Request != nil {
+				details = append(details, fmt.Sprintf("method=%s", resp.Request.Method))
+				details = append(details, fmt.Sprintf("url=%s", resp.Request.URL.Redacted()))
+			}
+		}
+		if err != nil {
+			details = append(details, fmt.Sprintf("error=%s", err.Error()))
+		} else {
+			details = append(details, "error=nil")
+		}
+
+		GetLogger().Debug("Considering retry attempt; %s\n", strings.Join(details, ", "))
+	}
 
 	// Do not retry on a Context-related error (Canceled or DeadlineExceeded).
 	if ctx.Err() != nil {
+		GetLogger().Debug("No retry, Context error: %s\n", ctx.Err().Error())
 		return false, ctx.Err()
 	}
 
@@ -844,21 +882,35 @@ func IBMCloudSDKRetryPolicy(ctx context.Context, resp *http.Response, err error)
 		if v, ok := err.(*url.Error); ok {
 			// Don't retry if the error was due to too many redirects.
 			if redirectsErrorRe.MatchString(v.Error()) {
+				GetLogger().Debug("No retry, too many redirects: %s\n", v.Error())
 				return false, SDKErrorf(v, "", "too-many-redirects", getComponentInfo())
 			}
 
 			// Don't retry if the error was due to an invalid protocol scheme.
 			if schemeErrorRe.MatchString(v.Error()) {
+				GetLogger().Debug("No retry, invalid protocol scheme: %s\n", v.Error())
 				return false, SDKErrorf(v, "", "invalid-scheme", getComponentInfo())
 			}
 
+			// Don't retry if the error was due to an invalid header.
+			if invalidHeaderErrorRe.MatchString(v.Error()) {
+				GetLogger().Debug("No retry, invalid header: %s\n", v.Error())
+				return false, SDKErrorf(v, "", "invalid-header", getComponentInfo())
+			}
+
 			// Don't retry if the error was due to TLS cert verification failure.
-			if _, ok := v.Err.(x509.UnknownAuthorityError); ok {
+			if notTrustedErrorRe.MatchString(v.Error()) {
+				GetLogger().Debug("No retry, TLS certificate is not trusted: %s\n", v.Error())
+				return false, SDKErrorf(v, "", "cert-not-trusted", getComponentInfo())
+			}
+			if _, ok := v.Err.(*tls.CertificateVerificationError); ok {
+				GetLogger().Debug("No retry, TLS certificate validation error: %s\n", v.Error())
 				return false, SDKErrorf(v, "", "cert-failure", getComponentInfo())
 			}
 		}
 
 		// The error is likely recoverable so retry.
+		GetLogger().Debug("Retry will be attempted...")
 		return true, nil
 	}
 
@@ -867,9 +919,11 @@ func IBMCloudSDKRetryPolicy(ctx context.Context, resp *http.Response, err error)
 	// A 429 should be retryable.
 	// All codes in the 500's range except for 501 (Not Implemented) should be retryable.
 	if resp.StatusCode == 429 || (resp.StatusCode >= 500 && resp.StatusCode <= 599 && resp.StatusCode != 501) {
+		GetLogger().Debug("Retry will be attempted")
 		return true, nil
 	}
 
+	GetLogger().Debug("No retry for status code: %d\n")
 	return false, nil
 }
 
@@ -880,6 +934,8 @@ func IBMCloudSDKBackoffPolicy(min, max time.Duration, attemptNum int, resp *http
 	// Check for a Retry-After header.
 	if resp != nil {
 		if s, ok := resp.Header["Retry-After"]; ok {
+			GetLogger().Debug("Found Retry-After header: %s\n", s)
+
 			// First, try to parse the value as an integer (number of seconds to wait)
 			if sleep, err := strconv.ParseInt(s[0], 10, 64); err == nil {
 				return time.Second * time.Duration(sleep)
@@ -893,7 +949,6 @@ func IBMCloudSDKBackoffPolicy(min, max time.Duration, attemptNum int, resp *http
 				}
 				return sleep
 			}
-
 		}
 	}
 
diff --git a/vendor/github.com/IBM/go-sdk-core/v5/core/basic_authenticator.go b/vendor/github.com/IBM/go-sdk-core/v5/core/basic_authenticator.go
index b0c12eb9bf9d..4506eb1847ba 100644
--- a/vendor/github.com/IBM/go-sdk-core/v5/core/basic_authenticator.go
+++ b/vendor/github.com/IBM/go-sdk-core/v5/core/basic_authenticator.go
@@ -64,8 +64,9 @@ func (BasicAuthenticator) AuthenticationType() string {
 // Basic Authorization will be added to the request's headers in the form:
 //
 //	Authorization: Basic <encoded username and password>
-func (this *BasicAuthenticator) Authenticate(request *http.Request) error {
-	request.SetBasicAuth(this.Username, this.Password)
+func (authenticator *BasicAuthenticator) Authenticate(request *http.Request) error {
+	request.SetBasicAuth(authenticator.Username, authenticator.Password)
+	GetLogger().Debug("Authenticated outbound request (type=%s)\n", authenticator.AuthenticationType())
 	return nil
 }
 
@@ -73,23 +74,23 @@ func (this *BasicAuthenticator) Authenticate(request *http.Request) error {
 //
 // Ensures the username and password are not Nil. Additionally, ensures
 // they do not contain invalid characters.
-func (this BasicAuthenticator) Validate() error {
-	if this.Username == "" {
+func (authenticator BasicAuthenticator) Validate() error {
+	if authenticator.Username == "" {
 		err := fmt.Errorf(ERRORMSG_PROP_MISSING, "Username")
 		return SDKErrorf(err, "", "no-user", getComponentInfo())
 	}
 
-	if this.Password == "" {
+	if authenticator.Password == "" {
 		err := fmt.Errorf(ERRORMSG_PROP_MISSING, "Password")
 		return SDKErrorf(err, "", "no-pass", getComponentInfo())
 	}
 
-	if HasBadFirstOrLastChar(this.Username) {
+	if HasBadFirstOrLastChar(authenticator.Username) {
 		err := fmt.Errorf(ERRORMSG_PROP_INVALID, "Username")
 		return SDKErrorf(err, "", "bad-user", getComponentInfo())
 	}
 
-	if HasBadFirstOrLastChar(this.Password) {
+	if HasBadFirstOrLastChar(authenticator.Password) {
 		err := fmt.Errorf(ERRORMSG_PROP_INVALID, "Password")
 		return SDKErrorf(err, "", "bad-pass", getComponentInfo())
 	}
diff --git a/vendor/github.com/IBM/go-sdk-core/v5/core/bearer_token_authenticator.go b/vendor/github.com/IBM/go-sdk-core/v5/core/bearer_token_authenticator.go
index ab26448da144..ce37cb9d678d 100644
--- a/vendor/github.com/IBM/go-sdk-core/v5/core/bearer_token_authenticator.go
+++ b/vendor/github.com/IBM/go-sdk-core/v5/core/bearer_token_authenticator.go
@@ -61,16 +61,17 @@ func (BearerTokenAuthenticator) AuthenticationType() string {
 // The bearer token will be added to the request's headers in the form:
 //
 //	Authorization: Bearer <bearer-token>
-func (this *BearerTokenAuthenticator) Authenticate(request *http.Request) error {
-	request.Header.Set("Authorization", fmt.Sprintf(`Bearer %s`, this.BearerToken))
+func (authenticator *BearerTokenAuthenticator) Authenticate(request *http.Request) error {
+	request.Header.Set("Authorization", fmt.Sprintf(`Bearer %s`, authenticator.BearerToken))
+	GetLogger().Debug("Authenticated outbound request (type=%s)\n", authenticator.AuthenticationType())
 	return nil
 }
 
 // Validate the authenticator's configuration.
 //
 // Ensures the bearer token is not Nil.
-func (this BearerTokenAuthenticator) Validate() error {
-	if this.BearerToken == "" {
+func (authenticator BearerTokenAuthenticator) Validate() error {
+	if authenticator.BearerToken == "" {
 		err := fmt.Errorf(ERRORMSG_PROP_MISSING, "BearerToken")
 		return SDKErrorf(err, "", "no-token", getComponentInfo())
 	}
diff --git a/vendor/github.com/IBM/go-sdk-core/v5/core/config_utils.go b/vendor/github.com/IBM/go-sdk-core/v5/core/config_utils.go
index 24d535dd966b..39e720701191 100644
--- a/vendor/github.com/IBM/go-sdk-core/v5/core/config_utils.go
+++ b/vendor/github.com/IBM/go-sdk-core/v5/core/config_utils.go
@@ -63,6 +63,8 @@ func getServiceProperties(serviceName string) (serviceProps map[string]string, e
 		return
 	}
 
+	GetLogger().Debug("Retrieving config properties for service '%s'\n", serviceName)
+
 	// First try to retrieve service properties from a credential file.
 	serviceProps = getServicePropertiesFromCredentialFile(serviceName)
 
@@ -76,6 +78,8 @@ func getServiceProperties(serviceName string) (serviceProps map[string]string, e
 		serviceProps = getServicePropertiesFromVCAP(serviceName)
 	}
 
+	GetLogger().Debug("Retrieved %d properties\n", len(serviceProps))
+
 	return
 }
 
diff --git a/vendor/github.com/IBM/go-sdk-core/v5/core/container_authenticator.go b/vendor/github.com/IBM/go-sdk-core/v5/core/container_authenticator.go
index 2d7c3f561713..5919889c073f 100644
--- a/vendor/github.com/IBM/go-sdk-core/v5/core/container_authenticator.go
+++ b/vendor/github.com/IBM/go-sdk-core/v5/core/container_authenticator.go
@@ -255,6 +255,7 @@ func (authenticator *ContainerAuthenticator) Authenticate(request *http.Request)
 	}
 
 	request.Header.Set("Authorization", "Bearer "+token)
+	GetLogger().Debug("Authenticated outbound request (type=%s)\n", authenticator.AuthenticationType())
 	return nil
 }
 
diff --git a/vendor/github.com/IBM/go-sdk-core/v5/core/cp4d_authenticator.go b/vendor/github.com/IBM/go-sdk-core/v5/core/cp4d_authenticator.go
index 8f9a8117e7c3..66c1f1037bc7 100644
--- a/vendor/github.com/IBM/go-sdk-core/v5/core/cp4d_authenticator.go
+++ b/vendor/github.com/IBM/go-sdk-core/v5/core/cp4d_authenticator.go
@@ -207,6 +207,7 @@ func (authenticator *CloudPakForDataAuthenticator) Authenticate(request *http.Re
 	}
 
 	request.Header.Set("Authorization", fmt.Sprintf(`Bearer %s`, token))
+	GetLogger().Debug("Authenticated outbound request (type=%s)\n", authenticator.AuthenticationType())
 	return nil
 }
 
@@ -231,15 +232,19 @@ func (authenticator *CloudPakForDataAuthenticator) setTokenData(tokenData *cp4dT
 // or the existing token has expired), a new access token is fetched from the token server.
 func (authenticator *CloudPakForDataAuthenticator) GetToken() (string, error) {
 	if authenticator.getTokenData() == nil || !authenticator.getTokenData().isTokenValid() {
+		GetLogger().Debug("Performing synchronous token fetch...")
 		// synchronously request the token
 		err := authenticator.synchronizedRequestToken()
 		if err != nil {
 			return "", RepurposeSDKProblem(err, "request-token-fail")
 		}
 	} else if authenticator.getTokenData().needsRefresh() {
+		GetLogger().Debug("Performing background asynchronous token fetch...")
 		// If refresh needed, kick off a go routine in the background to get a new token
 		//nolint: errcheck
 		go authenticator.invokeRequestTokenData()
+	} else {
+		GetLogger().Debug("Using cached access token...")
 	}
 
 	// return an error if the access token is not valid or was not fetched
diff --git a/vendor/github.com/IBM/go-sdk-core/v5/core/iam_authenticator.go b/vendor/github.com/IBM/go-sdk-core/v5/core/iam_authenticator.go
index da9feb601448..ff73a693962a 100644
--- a/vendor/github.com/IBM/go-sdk-core/v5/core/iam_authenticator.go
+++ b/vendor/github.com/IBM/go-sdk-core/v5/core/iam_authenticator.go
@@ -249,9 +249,9 @@ func (*IamAuthenticator) AuthenticationType() string {
 
 // Authenticate adds IAM authentication information to the request.
 //
-// The IAM bearer token will be added to the request's headers in the form:
+// The IAM access token will be added to the request's headers in the form:
 //
-//	Authorization: Bearer <bearer-token>
+//	Authorization: Bearer <access-token>
 func (authenticator *IamAuthenticator) Authenticate(request *http.Request) error {
 	token, err := authenticator.GetToken()
 	if err != nil {
@@ -259,6 +259,7 @@ func (authenticator *IamAuthenticator) Authenticate(request *http.Request) error
 	}
 
 	request.Header.Set("Authorization", "Bearer "+token)
+	GetLogger().Debug("Authenticated outbound request (type=%s)\n", authenticator.AuthenticationType())
 	return nil
 }
 
@@ -362,15 +363,19 @@ func (authenticator *IamAuthenticator) Validate() error {
 // or the existing token has expired), a new access token is fetched from the token server.
 func (authenticator *IamAuthenticator) GetToken() (string, error) {
 	if authenticator.getTokenData() == nil || !authenticator.getTokenData().isTokenValid() {
+		GetLogger().Debug("Performing synchronous token fetch...")
 		// synchronously request the token
 		err := authenticator.synchronizedRequestToken()
 		if err != nil {
 			return "", RepurposeSDKProblem(err, "request-token-fail")
 		}
 	} else if authenticator.getTokenData().needsRefresh() {
+		GetLogger().Debug("Performing background asynchronous token fetch...")
 		// If refresh needed, kick off a go routine in the background to get a new token
 		//nolint: errcheck
 		go authenticator.invokeRequestTokenData()
+	} else {
+		GetLogger().Debug("Using cached access token...")
 	}
 
 	// return an error if the access token is not valid or was not fetched
diff --git a/vendor/github.com/IBM/go-sdk-core/v5/core/mcsp_authenticator.go b/vendor/github.com/IBM/go-sdk-core/v5/core/mcsp_authenticator.go
index 3bd2a2f4f016..38845074af0f 100644
--- a/vendor/github.com/IBM/go-sdk-core/v5/core/mcsp_authenticator.go
+++ b/vendor/github.com/IBM/go-sdk-core/v5/core/mcsp_authenticator.go
@@ -183,6 +183,7 @@ func (authenticator *MCSPAuthenticator) Authenticate(request *http.Request) erro
 	}
 
 	request.Header.Set("Authorization", "Bearer "+token)
+	GetLogger().Debug("Authenticated outbound request (type=%s)\n", authenticator.AuthenticationType())
 	return nil
 }
 
@@ -227,15 +228,19 @@ func (authenticator *MCSPAuthenticator) Validate() error {
 // or the existing token has expired), a new access token is fetched from the token server.
 func (authenticator *MCSPAuthenticator) GetToken() (string, error) {
 	if authenticator.getTokenData() == nil || !authenticator.getTokenData().isTokenValid() {
+		GetLogger().Debug("Performing synchronous token fetch...")
 		// synchronously request the token
 		err := authenticator.synchronizedRequestToken()
 		if err != nil {
 			return "", RepurposeSDKProblem(err, "request-token-fail")
 		}
 	} else if authenticator.getTokenData().needsRefresh() {
+		GetLogger().Debug("Performing background asynchronous token fetch...")
 		// If refresh needed, kick off a go routine in the background to get a new token.
 		//nolint: errcheck
 		go authenticator.invokeRequestTokenData()
+	} else {
+		GetLogger().Debug("Using cached access token...")
 	}
 
 	// return an error if the access token is not valid or was not fetched
diff --git a/vendor/github.com/IBM/go-sdk-core/v5/core/parameterized_url.go b/vendor/github.com/IBM/go-sdk-core/v5/core/parameterized_url.go
index 849dad66a3fd..81b650615c9a 100644
--- a/vendor/github.com/IBM/go-sdk-core/v5/core/parameterized_url.go
+++ b/vendor/github.com/IBM/go-sdk-core/v5/core/parameterized_url.go
@@ -39,6 +39,7 @@ func ConstructServiceURL(
 	defaultUrlVariables map[string]string,
 	providedUrlVariables map[string]string,
 ) (string, error) {
+	GetLogger().Debug("Constructing service URL from parameterized URL: %s\n", parameterizedUrl)
 
 	// Verify the provided variable names.
 	for providedName := range providedUrlVariables {
@@ -70,5 +71,6 @@ func ConstructServiceURL(
 		}
 		formattedUrl = strings.Replace(formattedUrl, "{"+name+"}", providedValue, 1)
 	}
+	GetLogger().Debug("Returning service URL: %s\n", formattedUrl)
 	return formattedUrl, nil
 }
diff --git a/vendor/github.com/IBM/go-sdk-core/v5/core/version.go b/vendor/github.com/IBM/go-sdk-core/v5/core/version.go
index b7869180380f..3921e502e861 100644
--- a/vendor/github.com/IBM/go-sdk-core/v5/core/version.go
+++ b/vendor/github.com/IBM/go-sdk-core/v5/core/version.go
@@ -15,4 +15,4 @@ package core
 // limitations under the License.
 
 // Version of the SDK
-const __VERSION__ = "5.17.4"
+const __VERSION__ = "5.17.5"
diff --git a/vendor/github.com/IBM/go-sdk-core/v5/core/vpc_instance_authenticator.go b/vendor/github.com/IBM/go-sdk-core/v5/core/vpc_instance_authenticator.go
index 562318b2ceb4..4c60ee721773 100644
--- a/vendor/github.com/IBM/go-sdk-core/v5/core/vpc_instance_authenticator.go
+++ b/vendor/github.com/IBM/go-sdk-core/v5/core/vpc_instance_authenticator.go
@@ -189,6 +189,7 @@ func (authenticator *VpcInstanceAuthenticator) Authenticate(request *http.Reques
 	}
 
 	request.Header.Set("Authorization", "Bearer "+token)
+	GetLogger().Debug("Authenticated outbound request (type=%s)\n", authenticator.AuthenticationType())
 	return nil
 }
 
diff --git a/vendor/modules.txt b/vendor/modules.txt
index faff1385e04d..f3843e806d8f 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -206,7 +206,7 @@ github.com/DataDog/sketches-go/ddsketch/store
 # github.com/DmitriyVTitov/size v1.5.0
 ## explicit; go 1.14
 github.com/DmitriyVTitov/size
-# github.com/IBM/go-sdk-core/v5 v5.17.4
+# github.com/IBM/go-sdk-core/v5 v5.17.5
 ## explicit; go 1.20
 github.com/IBM/go-sdk-core/v5/core
 # github.com/IBM/ibm-cos-sdk-go v1.11.0