release v3

.codecov.yml

@@ -1,3 +1,4 @@
 ignore:
   - "examples"
   - "**/*_test.go"
+  - "v3"

.github/workflows/golangci-lint.yml

@@ -16,10 +16,11 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
 
-      - name: Set up Go 1.18
+      - name: Set up Go 1.18+
         uses: actions/setup-go@v3
         with:
           go-version: "^1.18" # The Go version to download (if necessary) and use.
+          check-latest: true
 
       - run: go version
 

.github/workflows/staticAnalysis.yml

@@ -13,10 +13,11 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
 
-      - name: Set up Go 1.18
+      - name: Set up Go 1.18+
         uses: actions/setup-go@v3
         with:
           go-version: "^1.18" # The Go version to download (if necessary) and use.
+          check-latest: true
 
       - run: go version
 

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

@@ -14,10 +14,13 @@ jobs:
         os: [ubuntu-latest, windows-latest, macOS-latest]
 
     steps:
-      - name: Set up Go 1.18
+      - name: Set up Go 1.18+
         uses: actions/setup-go@v3
         with:
-          go-version: ^1.18
+          go-version: "^1.18"
+          check-latest: true
+
+      - run: go version
 
       # Checks-out repository under $GITHUB_WORKSPACE
       - name: Checkout

.github/workflows/test.yml

@@ -22,10 +22,13 @@ jobs:
         os: [ubuntu-latest, windows-latest, macOS-latest]
 
     steps:
-      - name: Set up Go 1.18
+      - name: Set up Go 1.18+
         uses: actions/setup-go@v3
         with:
-          go-version: ^1.18
+          go-version: "^1.18"
+          check-latest: true
+
+      - run: go version
 
       # Checks-out repository under $GITHUB_WORKSPACE
       - name: Checkout

.gitignore

@@ -10,6 +10,7 @@ server
 client
 !client/
 vendor/
+v3/
 
 # Test binary, build with `go test -c`
 *.test

.golangci.yml

@@ -22,14 +22,14 @@ linters:
     # - exhaustive       # check exhaustiveness of enum switch statements
     - exportloopref    # checks for pointers to enclosing loop variables
     # - forbidigo        # Forbids identifiers
-    # - forcetypeassert  # finds forced type assertions
+    - forcetypeassert  # finds forced type assertions
     - gci              # Gci control golang package import order and make it always deterministic.
     # - gochecknoglobals # Checks that no globals are present in Go code
     # - gochecknoinits   # Checks that no init functions are present in Go code
     # - gocognit         # Computes and checks the cognitive complexity of functions
     - goconst          # Finds repeated strings that could be replaced by a constant
     - gocritic         # The most opinionated Go source code linter
-    # - gocyclo          # Computes and checks the cyclomatic complexity of functions
+    - gocyclo          # Computes and checks the cyclomatic complexity of functions
     # - godox            # Tool for detection of FIXME, TODO and other comment keywords
     # - goerr113         # Golang linter to check the errors handling expressions
     - gofmt            # Gofmt checks whether code was gofmt-ed. By default this tool runs with -s option to check for code simplification
@@ -98,22 +98,29 @@ issues:
     - path: _test\.go
       linters:
         - dupl
+        - forcetypeassert
         - gosec
 
     - path: ^test/.*\.go
       linters:
         - dupl
+        - forcetypeassert
         - gosec
 
     - path: example_test\.go
       text: "exitAfterDefer"
       linters:
         - gocritic
 
-    - path: udp/message/getmid.go
+    - path: message/getmid.go
       text: "G404: Use of weak random number generator \\(math/rand instead of crypto/rand\\)"
       linters:
-        - gosec  
+        - gosec
+
+    - path: example_test\.go
+      text: "exitAfterDefer"
+      linters:
+        - gocritic
 
 #   # Fix found issues (if it's supported by the linter).
 #   fix: true

.vscode/settings.json

@@ -7,5 +7,8 @@
     "go.testEnvVars": {
      //   "GOFLAGS":"-mod=vendor",
     },
-    "go.testTimeout": "40s"
+    "go.testTimeout": "40s",
+    "files.watcherExclude": {
+        "**/go-coap/v3/**": true
+    }
 }

README.md

@@ -8,7 +8,7 @@
 [![contributors](https://img.shields.io/github/contributors/plgd-dev/go-coap)](https://github.com/plgd-dev/go-coap/graphs/contributors)
 [![GitHub stars](https://img.shields.io/github/stars/plgd-dev/go-coap)](https://github.com/plgd-dev/go-coap/stargazers)
 [![GitHub license](https://img.shields.io/github/license/plgd-dev/go-coap)](https://github.com/plgd-dev/go-coap/blob/master/LICENSE)
-[![GoDoc](https://pkg.go.dev/badge/github.com/plgd-dev/go-coap/v2?utm_source=godoc)](https://pkg.go.dev/github.com/plgd-dev/go-coap/v2?utm_source=godoc)
+[![GoDoc](https://pkg.go.dev/badge/github.com/plgd-dev/go-coap/v3?utm_source=godoc)](https://pkg.go.dev/github.com/plgd-dev/go-coap/v3?utm_source=godoc)
 <!-- [![Go Report](https://goreportcard.com/badge/github.com/plgd-dev/go-coap)](https://goreportcard.com/report/github.com/plgd-dev/go-coap) -->
 
 The Constrained Application Protocol (CoAP) is a specialized web transfer protocol for use with constrained nodes and constrained networks in the Internet of Things.
@@ -36,6 +36,10 @@ The go-coap provides servers and clients for DTLS, TCP-TLS, UDP, TCP in golang l
 [pion-dtls]: https://github.com/pion/dtls
 [coap-429]: https://datatracker.ietf.org/doc/html/rfc8516
 
+## Requirements
+
+* Go 1.18 or higher
+
 ## Samples
 
 ### Simple
@@ -48,7 +52,7 @@ The go-coap provides servers and clients for DTLS, TCP-TLS, UDP, TCP in golang l
     // Middleware function, which will be called for each request.
     func loggingMiddleware(next mux.Handler) mux.Handler {
         return mux.HandlerFunc(func(w mux.ResponseWriter, r *mux.Message) {
-            log.Printf("ClientAddress %v, %v\n", w.Client().RemoteAddr(), r.String())
+            log.Printf("ClientAddress %v, %v\n", w.Conn().RemoteAddr(), r.String())
             next.ServeCOAP(w, r)
         })
     }