diff --git a/.travis.yml b/.travis.yml
index 91129313f1..8ebae71234 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,45 +7,17 @@ matrix:
     env: GO111MODULE=on
   - go: 1.13.x
   - go: 1.13.x
-    env: 
-      - TESTTAGS=nomsgpack
-  - go: 1.14.x
-  - go: 1.14.x
-    env:
-      - TESTTAGS=nomsgpack
-  - go: 1.15.x
-  - go: 1.15.x
-    env:
-      - TESTTAGS=nomsgpack
-  - go: master
-    # Adding ppc64le jobs
-  - go: 1.11.x
-    arch: ppc64le
-    env: GO111MODULE=on
-  - go: 1.12.x
-    arch: ppc64le
-    env: GO111MODULE=on
-  - go: 1.13.x
-    arch: ppc64le
-  - go: 1.13.x
-    arch: ppc64le
     env:
       - TESTTAGS=nomsgpack
   - go: 1.14.x
-    arch: ppc64le
   - go: 1.14.x
-    arch: ppc64le
     env:
       - TESTTAGS=nomsgpack
   - go: 1.15.x
-    arch: ppc64le
   - go: 1.15.x
-    arch: ppc64le
     env:
       - TESTTAGS=nomsgpack
   - go: master
-    arch: ppc64le
-
 
 git:
   depth: 10
diff --git a/AUTHORS.md b/AUTHORS.md
index dda19bcf3e..a477611bff 100644
--- a/AUTHORS.md
+++ b/AUTHORS.md
@@ -156,7 +156,7 @@ People and companies, who have contributed, in alphabetical order.
 - Fix variadic parameter in the flexible render API
 - Fix Corrupted plain render
 - Add Pluggable View Renderer Example
- 
+
 
 **@msemenistyi (Mykyta Semenistyi)**
 - update Readme.md. Add code to String method
diff --git a/BENCHMARKS.md b/BENCHMARKS.md
index 0f59b509b3..c11ee99ae7 100644
--- a/BENCHMARKS.md
+++ b/BENCHMARKS.md
@@ -1,11 +1,11 @@
 
 # Benchmark System
 
-**VM HOST:** Travis  
-**Machine:** Ubuntu 16.04.6 LTS x64  
-**Date:** May 04th, 2020  
+**VM HOST:** Travis
+**Machine:** Ubuntu 16.04.6 LTS x64
+**Date:** May 04th, 2020
 **Version:** Gin v1.6.3
-**Go Version:** 1.14.2 linux/amd64  
+**Go Version:** 1.14.2 linux/amd64
 **Source:** [Go HTTP Router Benchmark](https://github.com/gin-gonic/go-http-routing-benchmark)
 **Result:** [See the gist](https://gist.github.com/appleboy/b5f2ecfaf50824ae9c64dcfb9165ae5e) or [Travis result](https://travis-ci.org/github/gin-gonic/go-http-routing-benchmark/jobs/682947061)
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3ac51ad357..ddf30e189b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -215,12 +215,12 @@
 
 ## Gin 1.1
 
-- [NEW] Implement QueryArray and PostArray methods 
-- [NEW] Refactor GetQuery and GetPostForm 
-- [NEW] Add contribution guide 
+- [NEW] Implement QueryArray and PostArray methods
+- [NEW] Refactor GetQuery and GetPostForm
+- [NEW] Add contribution guide
 - [FIX] Corrected typos in README
-- [FIX] Removed additional Iota  
-- [FIX] Changed imports to gopkg instead of github in README (#733) 
+- [FIX] Removed additional Iota
+- [FIX] Changed imports to gopkg instead of github in README (#733)
 - [FIX] Logger: skip ANSI color commands if output is not a tty
 
 ## Gin 1.0rc2 (...)
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 98d758ef1c..97daa808f0 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,4 +1,4 @@
-## Contributing 
+## Contributing
 
 - With issues:
   - Use the search tool before opening a new issue.
diff --git a/README.md b/README.md
index 18b19430f1..119f9452a3 100644
--- a/README.md
+++ b/README.md
@@ -103,7 +103,7 @@ import "net/http"
 ```
 
 ## Quick start
- 
+
 ```sh
 # assume the following codes in example.go file
 $ cat example.go
@@ -588,44 +588,44 @@ func main() {
 ::1 - [Fri, 07 Dec 2018 17:04:38 JST] "GET /ping HTTP/1.1 200 122.767µs "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.80 Safari/537.36" "
 ```
 
-### Controlling Log output coloring 
+### Controlling Log output coloring
 
 By default, logs output on console should be colorized depending on the detected TTY.
 
-Never colorize logs: 
+Never colorize logs:
 
 ```go
 func main() {
     // Disable log's color
     gin.DisableConsoleColor()
-    
+
     // Creates a gin router with default middleware:
     // logger and recovery (crash-free) middleware
     router := gin.Default()
-    
+
     router.GET("/ping", func(c *gin.Context) {
         c.String(200, "pong")
     })
-    
+
     router.Run(":8080")
 }
 ```
 
-Always colorize logs: 
+Always colorize logs:
 
 ```go
 func main() {
     // Force log's color
     gin.ForceConsoleColor()
-    
+
     // Creates a gin router with default middleware:
     // logger and recovery (crash-free) middleware
     router := gin.Default()
-    
+
     router.GET("/ping", func(c *gin.Context) {
         c.String(200, "pong")
     })
-    
+
     router.Run(":8080")
 }
 ```
@@ -667,12 +667,12 @@ func main() {
 			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 			return
 		}
-		
+
 		if json.User != "manu" || json.Password != "123" {
 			c.JSON(http.StatusUnauthorized, gin.H{"status": "unauthorized"})
 			return
-		} 
-		
+		}
+
 		c.JSON(http.StatusOK, gin.H{"status": "you are logged in"})
 	})
 
@@ -688,12 +688,12 @@ func main() {
 			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 			return
 		}
-		
+
 		if xml.User != "manu" || xml.Password != "123" {
 			c.JSON(http.StatusUnauthorized, gin.H{"status": "unauthorized"})
 			return
-		} 
-		
+		}
+
 		c.JSON(http.StatusOK, gin.H{"status": "you are logged in"})
 	})
 
@@ -705,12 +705,12 @@ func main() {
 			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 			return
 		}
-		
+
 		if form.User != "manu" || form.Password != "123" {
 			c.JSON(http.StatusUnauthorized, gin.H{"status": "unauthorized"})
 			return
-		} 
-		
+		}
+
 		c.JSON(http.StatusOK, gin.H{"status": "you are logged in"})
 	})
 
@@ -807,7 +807,7 @@ $ curl "localhost:8085/bookable?check_in=2030-03-10&check_out=2030-03-09"
 {"error":"Key: 'Booking.CheckOut' Error:Field validation for 'CheckOut' failed on the 'gtfield' tag"}
 
 $ curl "localhost:8085/bookable?check_in=2000-03-09&check_out=2000-03-10"
-{"error":"Key: 'Booking.CheckIn' Error:Field validation for 'CheckIn' failed on the 'bookabledate' tag"}%    
+{"error":"Key: 'Booking.CheckIn' Error:Field validation for 'CheckIn' failed on the 'bookabledate' tag"}%
 ```
 
 [Struct level validations](https://github.com/go-playground/validator/releases/tag/v8.7) can also be registered this way.
@@ -1145,7 +1145,7 @@ func main() {
 		data := gin.H{
 			"foo": "bar",
 		}
-		
+
 		//callback is x
 		// Will output  :   x({\"foo\":\"bar\"})
 		c.JSONP(http.StatusOK, data)
@@ -1190,21 +1190,21 @@ This feature is unavailable in Go 1.6 and lower.
 ```go
 func main() {
 	r := gin.Default()
-	
+
 	// Serves unicode entities
 	r.GET("/json", func(c *gin.Context) {
 		c.JSON(200, gin.H{
 			"html": "<b>Hello, world!</b>",
 		})
 	})
-	
+
 	// Serves literal characters
 	r.GET("/purejson", func(c *gin.Context) {
 		c.PureJSON(200, gin.H{
 			"html": "<b>Hello, world!</b>",
 		})
 	})
-	
+
 	// listen and serve on 0.0.0.0:8080
 	r.Run(":8080")
 }
@@ -1793,8 +1793,8 @@ func main() {
 	// Initializing the server in a goroutine so that
 	// it won't block the graceful shutdown handling below
 	go func() {
-		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
-			log.Fatalf("listen: %s\n", err)
+		if err := srv.ListenAndServe(); err != nil && errors.Is(err, http.ErrServerClosed) {
+			log.Printf("listen: %s\n", err)
 		}
 	}()
 
@@ -1812,10 +1812,11 @@ func main() {
 	// the request it is currently handling
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
+
 	if err := srv.Shutdown(ctx); err != nil {
 		log.Fatal("Server forced to shutdown:", err)
 	}
-	
+
 	log.Println("Server exiting")
 }
 ```
diff --git a/auth.go b/auth.go
index 43ad36f53b..4d8a6ce484 100644
--- a/auth.go
+++ b/auth.go
@@ -5,6 +5,7 @@
 package gin
 
 import (
+	"crypto/subtle"
 	"encoding/base64"
 	"net/http"
 	"strconv"
@@ -30,7 +31,7 @@ func (a authPairs) searchCredential(authValue string) (string, bool) {
 		return "", false
 	}
 	for _, pair := range a {
-		if pair.value == authValue {
+		if subtle.ConstantTimeCompare([]byte(pair.value), []byte(authValue)) == 1 {
 			return pair.user, true
 		}
 	}
diff --git a/debug.go b/debug.go
index c66ca4408f..4c7cd0c39e 100644
--- a/debug.go
+++ b/debug.go
@@ -12,7 +12,7 @@ import (
 	"strings"
 )
 
-const ginSupportMinGoVer = 10
+const ginSupportMinGoVer = 12
 
 // IsDebugging returns true if the framework is running in debug mode.
 // Use SetMode(gin.ReleaseMode) to disable debug mode.
@@ -67,7 +67,7 @@ func getMinVer(v string) (uint64, error) {
 
 func debugPrintWARNINGDefault() {
 	if v, e := getMinVer(runtime.Version()); e == nil && v <= ginSupportMinGoVer {
-		debugPrint(`[WARNING] Now Gin requires Go 1.11 or later and Go 1.12 will be required soon.
+		debugPrint(`[WARNING] Now Gin requires Go 1.12+.
 
 `)
 	}
diff --git a/debug_test.go b/debug_test.go
index d8cd5d1acc..c2272d0f86 100644
--- a/debug_test.go
+++ b/debug_test.go
@@ -104,7 +104,7 @@ func TestDebugPrintWARNINGDefault(t *testing.T) {
 	})
 	m, e := getMinVer(runtime.Version())
 	if e == nil && m <= ginSupportMinGoVer {
-		assert.Equal(t, "[GIN-debug] [WARNING] Now Gin requires Go 1.11 or later and Go 1.12 will be required soon.\n\n[GIN-debug] [WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.\n\n", re)
+		assert.Equal(t, "[GIN-debug] [WARNING] Now Gin requires Go 1.12+.\n\n[GIN-debug] [WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.\n\n", re)
 	} else {
 		assert.Equal(t, "[GIN-debug] [WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.\n\n", re)
 	}
diff --git a/gin_integration_test.go b/gin_integration_test.go
index 5f508c7090..41ad98743b 100644
--- a/gin_integration_test.go
+++ b/gin_integration_test.go
@@ -14,6 +14,7 @@ import (
 	"net/http"
 	"net/http/httptest"
 	"os"
+	"path/filepath"
 	"sync"
 	"testing"
 	"time"
@@ -146,7 +147,7 @@ func TestRunWithPort(t *testing.T) {
 func TestUnixSocket(t *testing.T) {
 	router := New()
 
-	unixTestSocket := "/tmp/unix_unit_test"
+	unixTestSocket := filepath.Join(os.TempDir(), "unix_unit_test")
 
 	defer os.Remove(unixTestSocket)
 
diff --git a/internal/bytesconv/bytesconv.go b/internal/bytesconv/bytesconv.go
index fdad2015c4..86e4c4d44c 100644
--- a/internal/bytesconv/bytesconv.go
+++ b/internal/bytesconv/bytesconv.go
@@ -9,7 +9,7 @@ import (
 )
 
 // StringToBytes converts string to byte slice without a memory allocation.
-func StringToBytes(s string) (b []byte) {
+func StringToBytes(s string) []byte {
 	return *(*[]byte)(unsafe.Pointer(
 		&struct {
 			string
diff --git a/mode.go b/mode.go
index 11f833e9a3..c8813aff26 100644
--- a/mode.go
+++ b/mode.go
@@ -63,7 +63,7 @@ func SetMode(value string) {
 	case TestMode:
 		ginMode = testCode
 	default:
-		panic("gin mode unknown: " + value)
+		panic("gin mode unknown: " + value + " (available mode: debug release test)")
 	}
 
 	modeName = value