upgrade go mod and workflow (#83)

.github/workflows/test_and_build.yml

@@ -9,15 +9,13 @@ on:
 
 env:
   GO111MODULE: on
-  # For versions earlier than Go 1.13
-  GOPROXY: https://proxy.golang.org
   ACTIONS_ALLOW_UNSECURE_COMMANDS: true
 
 jobs:
   test_and_build:
     strategy:
       matrix:
-        go-version: [1.14.x, 1.13.x, 1.12.x, 1.11.x]
+        go-version: [1.16.x, 1.15.x, 1.14.x]
         platform: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.platform }}
     steps:
@@ -52,7 +50,7 @@ jobs:
       run: go test -race --coverprofile=coverage.txt --covermode=atomic ./...
 
     - name: Upload coverage to Codecov
-      if: success() && matrix.go-version == '1.14.x' && matrix.platform == 'ubuntu-latest' && github.ref == 'refs/heads/master'
+      if: success() && matrix.go-version == '1.16.x' && matrix.platform == 'ubuntu-latest' && github.ref == 'refs/heads/master'
       uses: codecov/codecov-action@v1
       with:
         token: ${{ secrets.CODECOV_TOKEN }}

README.md

@@ -34,7 +34,7 @@
 
 ### Supported Go versions & installation
 
-:gear: gearbox requires version `1.11` or higher of Go ([Download Go](https://golang.org/dl/))
+:gear: gearbox requires version `1.14` or higher of Go ([Download Go](https://golang.org/dl/))
 
 Just use [go get](https://golang.org/cmd/go/#hdr-Add_dependencies_to_current_module_and_install_them) to download and install gearbox
 

go.mod

@@ -1,6 +1,6 @@
 module github.com/gogearbox/gearbox
 
-go 1.14
+go 1.16
 
 require (
 	github.com/json-iterator/go v1.1.10