diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index e7f743b..f092f9b 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -11,11 +11,10 @@ jobs:
       fail-fast: false
       matrix:
         go-version:
-          - 1.20.x
-          - 1.21.x
-          - 1.22.x
-          - 1.23.x
           - 1.24.x
+          - 1.25.x
+          - 1.26.x
+          - 1.27.x
 
     steps:
       - name: 🔄 Checkout Repository
@@ -36,7 +35,7 @@ jobs:
           echo "cloud_name: $(echo $CLOUDINARY_URL | cut -d'@' -f2)"
 
       - name: 🧰 Install gotestsum
-        run: go install gotest.tools/gotestsum@v1.11.0
+        run: go install gotest.tools/gotestsum@v1.13.0
 
       - name: 🧪 Run Tests
         run: |
diff --git a/README.md b/README.md
index f3904dd..64cca86 100644
--- a/README.md
+++ b/README.md
@@ -32,11 +32,11 @@ For the complete documentation, see the [Go SDK Guide](https://cloudinary.com/do
 
 ## Version Support
 
-| **SDK Version** | **Go 1.13 - 1.19** | **Go 1.20** | **Go 1.21** | **Go 1.22** | **Go 1.23** |
-|-----------------|--------------------|-------------|-------------|-------------|-------------|
-| **2.8 & Up**    | ❌                  | ✔️          | ✔️          | ✔️          | ✔️          |
-| **2.7**         | ✔️                 | ✔️          | ✔️          | ✔️          | ✔️          |
-| **1.x**         | ✔️                 | ✔️          | ✔️          | ✔️          | ✔️          |
+| **SDK Version** | **Go 1.13 - 1.19** | **Go 1.20 - 1.23** | **Go 1.24 - 1.27** |
+|-----------------|--------------------|--------------------|--------------------|
+| **2.8 & Up**    | ❌                  | ✔️                 | ✔️                 |
+| **2.7**         | ✔️                 | ✔️                 | ✔️                 |
+| **1.x**         | ✔️                 | ✔️                 | ✔️                 |
 
 ## Installation
 
diff --git a/api/admin/analysis.go b/api/admin/analysis.go
index 416b567..84b66a1 100644
--- a/api/admin/analysis.go
+++ b/api/admin/analysis.go
@@ -5,6 +5,10 @@ import (
 	"github.com/cloudinary/cloudinary-go/v2/api"
 )
 
+type contextKey string
+
+const apiVersionKey contextKey = "api_version"
+
 const (
 	analysis api.EndPoint = "analysis"
 	analyze  api.EndPoint = "analyze"
@@ -46,7 +50,7 @@ Currently supports the following analysis options:
 * Custom
 */
 func (a *API) Analyze(ctx context.Context, params AnalyzeParams) (*AnalyzeResult, error) {
-	v2APICtx := context.WithValue(ctx, "api_version", "2")
+	v2APICtx := context.WithValue(ctx, apiVersionKey, "2")
 	res := &AnalyzeResult{}
 	_, err := a.post(v2APICtx, api.BuildPath(analysis, analyze, uri), params, res)
 
diff --git a/api/admin/api.go b/api/admin/api.go
index 82c278d..9a7e08e 100644
--- a/api/admin/api.go
+++ b/api/admin/api.go
@@ -9,7 +9,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"mime/multipart"
 	"net/http"
 	"os"
@@ -168,7 +167,7 @@ func (a *API) postFile(ctx context.Context, path interface{}, file interface{},
 func (a *API) executeRequest(ctx context.Context, method string, path interface{}, body io.Reader, queryParams string,
 	headers map[string]string, result interface{}) (*http.Response, error) {
 	apiVersion := ""
-	if apiVersionRaw := ctx.Value("api_version"); apiVersionRaw != nil {
+	if apiVersionRaw := ctx.Value(apiVersionKey); apiVersionRaw != nil {
 		apiVersion = apiVersionRaw.(string)
 	}
 
@@ -205,7 +204,7 @@ func (a *API) executeRequest(ctx context.Context, method string, path interface{
 
 	defer api.DeferredClose(resp.Body)
 
-	bodyBytes, err := ioutil.ReadAll(resp.Body)
+	bodyBytes, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/api/admin/asset.go b/api/admin/asset.go
index 615c5a7..6137399 100644
--- a/api/admin/asset.go
+++ b/api/admin/asset.go
@@ -221,7 +221,7 @@ type UpdateAssetParams struct {
 	BackgroundRemoval string               `json:"background_removal,omitempty"`
 	QualityOverride   int                  `json:"quality_override,omitempty"`
 	NotificationURL   string               `json:"notification_url,omitempty"`
-	Tags              api.CldAPIArray      `json:"tags,omitempty,omitempty"`
+	Tags              api.CldAPIArray      `json:"tags,omitempty"`
 	Context           api.CldAPIMap        `json:"context,omitempty"`
 	AdminContext      []api.AdminContext   `json:"admin_context,omitempty"`
 	FaceCoordinates   api.Coordinates      `json:"face_coordinates,omitempty"`
diff --git a/api/api.go b/api/api.go
index 0c7843e..e1dc2b0 100644
--- a/api/api.go
+++ b/api/api.go
@@ -63,7 +63,7 @@ func BaseURL(uploadPrefix string, apiVer string) string {
 }
 
 // base64DataRegex is the regular expression for detecting base64 encoded strings.
-var base64DataRegex = regexp.MustCompile("^data:([\\w-]+/[\\w\\-+.]+)?(;[\\w-]+=[\\w-]+)*;base64,([a-zA-Z0-9/+\\n=]+)$")
+var base64DataRegex = regexp.MustCompile(`^data:([\w-]+/[\w\-+.]+)?(;[\w-]+=[\w-]+)*;base64,([a-zA-Z0-9/+\n=]+)$`)
 
 // AssetType is the type of the asset.
 type AssetType string
diff --git a/api/uploader/upload.go b/api/uploader/upload.go
index 835bbc9..f4c084a 100644
--- a/api/uploader/upload.go
+++ b/api/uploader/upload.go
@@ -12,7 +12,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"mime/multipart"
 	"net/http"
@@ -358,7 +357,7 @@ func (u *API) postBody(ctx context.Context, urlPath interface{}, bodyReader io.R
 
 	defer api.DeferredClose(resp.Body)
 
-	return ioutil.ReadAll(resp.Body)
+	return io.ReadAll(resp.Body)
 }
 
 func setAuth(u *API, req *http.Request) {
diff --git a/api/uploader/upload_acceptance_test.go b/api/uploader/upload_acceptance_test.go
index 38a6de2..1305c65 100644
--- a/api/uploader/upload_acceptance_test.go
+++ b/api/uploader/upload_acceptance_test.go
@@ -190,6 +190,8 @@ func getAutoVideoDetailsTestCases() []UploadAPIAcceptanceTestCase {
 					AutoVideoDetails: &api.AutoVideoDetails{
 						Fields: []string{"title", "description"},
 					},
+					Unsigned:  api.Bool(true),
+					Timestamp: 123456789,
 				})
 			},
 			ResponseTest: func(response interface{}, t *testing.T) {},
@@ -292,6 +294,7 @@ func TestUploadAPI_Acceptance(t *testing.T) {
 	testUploadAPIByTestCases(getAuthorizationTestCases(), t)
 	testUploadAPIByTestCases(getFolderDecouplingTestCases(), t)
 	testUploadAPIByTestCases(getAutoTranscriptionTestCases(), t)
+	testUploadAPIByTestCases(getAutoVideoDetailsTestCases(), t)
 	testUploadAPIByTestCases(getBooleanValuesTestCases(), t)
 	testUploadAPIByTestCases(getVariousValuesTestCases(), t)
 	testUploadAPIByTestCases(getUploadConfigTestCases(), t)
diff --git a/api/uploader/upload_asset.go b/api/uploader/upload_asset.go
index 18e138a..5d57cbf 100644
--- a/api/uploader/upload_asset.go
+++ b/api/uploader/upload_asset.go
@@ -128,7 +128,7 @@ func (u *API) Upload(ctx context.Context, file interface{}, uploadParams UploadP
 	}
 
 	err = api.HandleRawResponse(body, result)
-	return result, nil
+	return result, err
 }
 
 // Eager contains information about eagerly transformed derived assets.
diff --git a/api/uploader/upload_asset_test.go b/api/uploader/upload_asset_test.go
index 772d32d..78174fb 100644
--- a/api/uploader/upload_asset_test.go
+++ b/api/uploader/upload_asset_test.go
@@ -4,11 +4,11 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"os"
 	"runtime"
 	"strings"
+	"sync/atomic"
 	"testing"
 	"time"
 
@@ -310,7 +310,7 @@ func TestUploader_UploadWithResponsiveBreakpoints(t *testing.T) {
 	}
 
 	if eResp == nil {
-		t.Error(resp)
+		t.Fatal(resp)
 	}
 
 	assert.Len(t, eResp.ResponsiveBreakpoints, 2)
@@ -364,7 +364,7 @@ func populateLargeImage() string {
 		"\xFC\x00\x00\x00\x00\x00\x00\x00\x00fff\xFC\x00\x00\x00\x00\x00\x00\x00\x00\xC4\xF5(\xFF\x00\x00\x00" +
 		"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
 
-	tmpFile, err := ioutil.TempFile(cldtest.TestDataDir(), largeImagePublicID+".*.bmp")
+	tmpFile, err := os.CreateTemp(cldtest.TestDataDir(), largeImagePublicID+".*.bmp")
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -390,24 +390,29 @@ func readMemoryAlloc() uint64 {
 }
 
 func watchMemoryAllocation() func() uint64 {
-	var maxAlloc uint64
-	proceed := true
+	var maxAlloc atomic.Uint64
+	var proceed atomic.Bool
+	proceed.Store(true)
 	initialRead := readMemoryAlloc()
 	go func() {
 		for i := 0; i < 10000; i++ {
-			if !proceed {
+			if !proceed.Load() {
 				return
 			}
-			read := readMemoryAlloc()
-			if read-initialRead > maxAlloc {
-				maxAlloc = read - initialRead
+			// Alloc is the live heap, which can drop below the baseline once the
+			// GC collects. Only consider growth, otherwise the unsigned
+			// subtraction underflows.
+			if read := readMemoryAlloc(); read > initialRead {
+				if grown := read - initialRead; grown > maxAlloc.Load() {
+					maxAlloc.Store(grown)
+				}
 			}
 			time.Sleep(time.Millisecond * 500)
 		}
 	}()
 
 	return func() uint64 {
-		proceed = false
-		return maxAlloc
+		proceed.Store(false)
+		return maxAlloc.Load()
 	}
 }
diff --git a/asset/auth_token_test.go b/asset/auth_token_test.go
index 6edf6ed..7017b2b 100644
--- a/asset/auth_token_test.go
+++ b/asset/auth_token_test.go
@@ -8,14 +8,11 @@ import (
 )
 
 const authTokenKey = "00112233FF99"
-const authTokenAltKey = "CCBB2233FF00"
 
 const duration = 300
 const startTime = 11111111
 
 const authTokenTestImage = "sample.jpg"
-const authTokenTestConfigACL = "/*/t_foobar"
-const authTokenTestPath = "http://res.cloudinary.com/test123/image/upload/v1486020273/sample.jpg"
 
 var authTokenConfig = config.AuthToken{
 	Duration:  duration,
diff --git a/cloudinary_test.go b/cloudinary_test.go
index 86111e6..3887bd8 100644
--- a/cloudinary_test.go
+++ b/cloudinary_test.go
@@ -26,7 +26,7 @@ func TestCloudinary_CreateInstance(t *testing.T) {
 		t.Error("Failed creating Cloudinary instance from Cloudinary URL.")
 	}
 
-	c, err := NewFromURL("")
+	_, err := NewFromURL("")
 	if err == nil || err.Error() != "must provide CLOUDINARY_URL" {
 		t.Error("Error expected, got: ", err)
 	}
diff --git a/config/configuration_test.go b/config/configuration_test.go
index 222aba1..6b78a13 100644
--- a/config/configuration_test.go
+++ b/config/configuration_test.go
@@ -27,7 +27,7 @@ func TestConfiguration_CreateInstance(t *testing.T) {
 	assert.Equal(t, cldtest.CloudName, c.Cloud.CloudName)
 	assert.Equal(t, signature.SHA256, c.Cloud.SignatureAlgorithm)
 
-	c, err = config.NewFromURL("")
+	_, err = config.NewFromURL("")
 	if err == nil || err.Error() != "must provide CLOUDINARY_URL" {
 		t.Error("Error expected, got: ", err)
 	}
diff --git a/gen/generate_setters/template.go b/gen/generate_setters/template.go
index 0abfc8c..ba138fc 100644
--- a/gen/generate_setters/template.go
+++ b/gen/generate_setters/template.go
@@ -7,6 +7,7 @@ import (
 	"io"
 	"strings"
 	"text/template"
+	"unicode"
 )
 
 // Generate template for setters file
@@ -31,7 +32,7 @@ func ({{ .Receiver}} *{{ .StructName}}) <<index .FuncName %d>>(<<index .ParamNam
 
 	for i, t := range setters {
 		stringTemplate += fmt.Sprintf(functionTemplate, i, i, i, i, i)
-		templateData.FuncName[i] = strings.Title(t.Param) + t.Suffix
+		templateData.FuncName[i] = string(unicode.ToUpper(rune(t.Param[0]))) + t.Param[1:] + t.Suffix
 		templateData.Type[i] = t.Type
 		templateData.ParamName[i] = t.Param
 	}
diff --git a/internal/cldtest/cldtest.go b/internal/cldtest/cldtest.go
index 4acce22..71300d4 100644
--- a/internal/cldtest/cldtest.go
+++ b/internal/cldtest/cldtest.go
@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"github.com/cloudinary/cloudinary-go/v2/api"
 	"io"
-	"io/ioutil"
 	"math/rand"
 	"net/http"
 	"net/http/httptest"
@@ -218,9 +217,7 @@ func GetTestSuffix() string {
 	testSuffix := os.Getenv("GITHUB_RUN_ID")
 
 	if testSuffix == "" {
-		rand.Seed(time.Now().UnixNano())
-		// Generate a random number between 100000 and 999999 to ensure 6 digits
-		testSuffix = strconv.Itoa(rand.Intn(900000) + 100000)
+		testSuffix = strconv.Itoa(rand.New(rand.NewSource(time.Now().UnixNano())).Intn(900000) + 100000)
 	}
 
 	return testSuffix
@@ -310,7 +307,7 @@ func GetTestHandler(response string, t *testing.T, callCounter *int, ep Expected
 
 		if r.Method == http.MethodPost || r.Method == http.MethodPut || r.Method == http.MethodDelete {
 			if r.Body != nil && ep.Body != nil {
-				bodyString, err := ioutil.ReadAll(r.Body)
+				bodyString, err := io.ReadAll(r.Body)
 
 				if err != nil {
 					t.Error(err)
diff --git a/scripts/allocate_test_cloud.go b/scripts/allocate_test_cloud.go
index 0377d01..949bc5a 100644
--- a/scripts/allocate_test_cloud.go
+++ b/scripts/allocate_test_cloud.go
@@ -3,7 +3,7 @@ package main
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"log"
 	"net/http"
 	"net/url"
@@ -26,7 +26,7 @@ func main() {
 
 	defer resp.Body.Close()
 
-	body, err := ioutil.ReadAll(resp.Body)
+	body, err := io.ReadAll(resp.Body)
 
 	if nil != err {
 		log.Fatal("error happened reading the body", err)