fix: panic/race bug fixes, Go 1.26 upgrade, and README refresh

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: ['1.24']
+        go-version: ['1.26']
 
     steps:
     - name: Checkout code
@@ -56,7 +56,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: '1.24'
+        go-version: '1.26'
         cache: true
         cache-dependency-path: go.sum
 
@@ -77,7 +77,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: '1.24'
+        go-version: '1.26'
         cache: true
         cache-dependency-path: go.sum
 
@@ -99,7 +99,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: '1.24'
+        go-version: '1.26'
         cache: true
         cache-dependency-path: go.sum
 

.github/workflows/release.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.24'
+          go-version: '1.26'
           cache: true
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v6

.github/workflows/test-release.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.24'
+          go-version: '1.26'
           cache: true
       - name: Test GoReleaser Build
         uses: goreleaser/goreleaser-action@v6

README.md

@@ -3,10 +3,13 @@ mping
 
 ![CI](https://github.com/servak/mping/actions/workflows/ci.yml/badge.svg)
 
-**mping** is a multi-target, multi-protocol network monitoring tool that extends traditional ping functionality. Monitor multiple hosts and services simultaneously with real-time statistics and an interactive terminal UI.
+**mping** is a `ping` built for network operators: sweep entire subnets, mix ICMP/HTTP/TCP/DNS/NTP checks in a single command, and watch live pass/fail stats in a terminal dashboard — right from the SSH session you're already in.
+
+![Demo](demo/mping.gif)
 
 ## Features
 
+- 🧰 **Built for network ops**: CIDR subnet sweeps, mixed-protocol checks, and a terminal-native dashboard for SSH sessions and jump hosts
 - 🎯 **Multi-target monitoring**: Monitor dozens of hosts simultaneously
 - 🌐 **Multi-protocol support**: ICMP, HTTP/HTTPS, TCP, DNS, and NTP monitoring
 - 📊 **Real-time statistics**: Live success rates, response times, and packet loss
@@ -25,10 +28,6 @@ mping
 | **DNS** | `dns://[server[:port]]/domain[/record_type]` | `dns://8.8.8.8/google.com/A`, `dns:///google.com` | DNS query monitoring |
 | **NTP** | `ntp://[server[:port]]` | `ntp://pool.ntp.org`, `ntp://time.google.com:123` | Network Time Protocol monitoring |
 
-## Demo
-
-![Demo](mping.gif)
-
 ## Install
 
 https://github.com/servak/mping/releases

cmd/mping/main.go

@@ -24,10 +24,12 @@ func Execute() {
 		command.NewConfigCmd(),
 	)
 	cmd.CompletionOptions.HiddenDefaultCmd = true
-	cmd.SetOutput(os.Stdout)
+	cmd.SetOut(os.Stdout)
+	cmd.SetErr(os.Stdout)
 
 	if err := cmd.Execute(); err != nil {
-		cmd.SetOutput(os.Stderr)
+		cmd.SetOut(os.Stderr)
+		cmd.SetErr(os.Stderr)
 		cmd.Println(err)
 		os.Exit(1)
 	}

demo/demo.tape

@@ -0,0 +1,53 @@
+# Regenerate demo/mping.gif (run from the repo root):
+#   go build -o mping ./cmd/mping/
+#   sudo chown root mping && sudo chmod u+s mping   # once, so ICMP works without sudo below
+#   vhs demo/demo.tape
+
+Output demo/mping.gif
+
+Set Shell "bash"
+Set FontSize 16
+Set Width 1500
+Set Height 560
+Set Padding 20
+Set Theme "Dracula"
+Set TypingSpeed 30ms
+
+# Subnet expansion (CIDR notation expands to individual ICMP targets)
+Type "./mping -i 100 192.168.1.1 8.8.8.8 github.com 192.168.1.108/31"
+Sleep 1s
+Enter
+Sleep 2s
+Type "v"
+Sleep 2s
+Type "j"
+Sleep 1s
+Type "j"
+Sleep 1s
+Type "j"
+Sleep 2s
+
+Type "q"
+Sleep 1s
+
+# Multi-protocol monitoring
+Type@10ms "./mping 192.168.1.1 https://google.com tcp://google.com:443 dns://8.8.8.8/google.com/A ntp://time.cloudflare.com"
+Sleep 1500ms
+Enter
+Sleep 1s
+Type "v"
+Sleep 3s
+Type "j"
+Sleep 1s
+Type "j"
+Sleep 1s
+Type "j"
+Sleep 1s
+
+Type "s"
+Sleep 1500ms
+Type "s"
+Sleep 1500ms
+
+Type "q"
+Sleep 1s

go.mod

@@ -1,32 +1,32 @@
 module github.com/servak/mping
 
-go 1.24
+go 1.26
 
 require (
-	github.com/gdamore/tcell/v2 v2.8.1
-	github.com/jedib0t/go-pretty/v6 v6.4.6
-	github.com/miekg/dns v1.1.66
-	github.com/rivo/tview v0.0.0-20250625164341-a4a78f1e05cb
-	github.com/spf13/cobra v1.7.0
-	golang.org/x/net v0.41.0
+	github.com/gdamore/tcell/v2 v2.13.10
+	github.com/jedib0t/go-pretty/v6 v6.8.2
+	github.com/miekg/dns v1.1.72
+	github.com/rivo/tview v0.42.0
+	github.com/spf13/cobra v1.10.2
+	golang.org/x/net v0.56.0
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
+	github.com/clipperhouse/uax29/v2 v2.7.0 // indirect
 	github.com/gdamore/encoding v1.0.1 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/kr/text v0.2.0 // indirect
-	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
-	github.com/mattn/go-runewidth v0.0.16 // indirect
+	github.com/lucasb-eyer/go-colorful v1.4.0 // indirect
+	github.com/mattn/go-runewidth v0.0.24 // indirect
 	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
-	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/stretchr/testify v1.8.2 // indirect
-	golang.org/x/mod v0.25.0 // indirect
-	golang.org/x/sync v0.15.0 // indirect
-	golang.org/x/sys v0.33.0 // indirect
-	golang.org/x/term v0.32.0 // indirect
-	golang.org/x/text v0.26.0 // indirect
-	golang.org/x/tools v0.33.0 // indirect
+	github.com/spf13/pflag v1.0.10 // indirect
+	golang.org/x/mod v0.37.0 // indirect
+	golang.org/x/sync v0.21.0 // indirect
+	golang.org/x/sys v0.46.0 // indirect
+	golang.org/x/term v0.44.0 // indirect
+	golang.org/x/text v0.38.0 // indirect
+	golang.org/x/tools v0.47.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
 )