Change oldest supported Go version to 1.20

.github/workflows/golangci-lint.yml

@@ -16,10 +16,10 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Set up Go 1.18+
+      - name: Set up Go 1.20+
         uses: actions/setup-go@v5
         with:
-          go-version: "^1.18" # The Go version to download (if necessary) and use.
+          go-version: "^1.20" # The Go version to download (if necessary) and use.
           check-latest: true
 
       - run: go version

.github/workflows/staticAnalysis.yml

@@ -13,10 +13,10 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Set up Go 1.18+
+      - name: Set up Go 1.20+
         uses: actions/setup-go@v5
         with:
-          go-version: "^1.18" # The Go version to download (if necessary) and use.
+          go-version: "^1.20" # The Go version to download (if necessary) and use.
           check-latest: true
 
       - run: go version
@@ -29,16 +29,3 @@ jobs:
           export PATH=${PATH}:`go env GOPATH`/bin
           go install github.com/fzipp/gocyclo/cmd/gocyclo@latest
           gocyclo -over 15 -ignore ".pb(.gw)?.go$|_test.go$|wsproxy" . || echo "gocyclo detected too complex functions"
-
-      # Disable aligncheck until it is compatible with golang v1.18
-      # - name: Install and run aligncheck
-      #   run: |
-      #     go get -u gitlab.com/opennota/check/cmd/aligncheck@latest
-      #     aligncheck ./...
-
-      # Disable structslop until it is compatible with golang v1.18
-      # - name: Install and run structslop
-      #   run: |
-      #     export PATH=${PATH}:`go env GOPATH`/bin
-      #     go install github.com/orijtech/structslop/cmd/structslop@latest
-      #     structslop ./...

.github/workflows/test-for-fork.yml

@@ -14,10 +14,10 @@ jobs:
         os: [ubuntu-latest, windows-latest, macOS-latest]
 
     steps:
-      - name: Set up Go 1.18+
+      - name: Set up Go 1.20+
         uses: actions/setup-go@v5
         with:
-          go-version: "^1.18"
+          go-version: "^1.20"
           check-latest: true
 
       - run: go version

.github/workflows/test.yml

@@ -22,10 +22,10 @@ jobs:
         os: [ubuntu-latest, windows-latest, macOS-latest]
 
     steps:
-      - name: Set up Go 1.18+
+      - name: Set up Go 1.20+
         uses: actions/setup-go@v5
         with:
-          go-version: "^1.18"
+          go-version: "^1.20"
           check-latest: true
 
       - run: go version
@@ -100,7 +100,8 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
 
-  test1_18:
+  # test on oldest supported major Go version
+  test1_20:
     # don't run for forks
     if: github.event_name == 'push' ||
       (github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository) ||
@@ -109,11 +110,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - name: Set up Go 1.18
+      - name: Set up Go 1.20
         uses: actions/setup-go@v5
         with:
-          # Go 1.18 is required by coap-gateway-go1-18 in https://github.com/plgd-dev/hub/blob/main/.github/workflows/publishDockerImagesGhcr.yml
-          go-version: "~1.18"
+          go-version: "~1.20"
 
       - run: go version
 

README.md

@@ -38,7 +38,7 @@ The go-coap provides servers and clients for DTLS, TCP-TLS, UDP, TCP in golang l
 
 ## Requirements
 
-* Go 1.18 or higher
+* Go 1.20 or higher
 
 ## Samples
 

go.mod

@@ -1,6 +1,6 @@
 module github.com/plgd-dev/go-coap/v3
 
-go 1.18
+go 1.20
 
 require (
 	github.com/dsnet/golib/memfile v1.0.0