ci testing with more go version

.travis.yml

@@ -1,7 +1,24 @@
+dist: focal
+
 language: go
+go:
+  - "1.13.x"
+  - "1.14.x"
+  - "1.15.x"
+  - "1.16.x"
+  - tip
 
 script:
   - go test -race -v -bench=. -coverprofile=coverage.txt -covermode=atomic ./...
 
 after_success:
   - bash <(curl -s https://codecov.io/bash)
+
+branches:
+  only:
+    - master
+
+matrix:
+  fast_finish: true
+  allow_failures:
+    - go: tip

cmd/whois/README.md

@@ -14,17 +14,17 @@ Whois is released as a single binary file. Install whois by unzipping it and mov
 
 ### macOS
 
-- [64-bit](https://github.com/likexian/whois/releases/download/v1.7.2/whois-darwin-amd64.zip)
+- [64-bit](https://github.com/likexian/whois/releases/download/v1.9.0/whois-darwin-amd64.zip)
 
 ### Linux
 
-- [64-bit](https://github.com/likexian/whois/releases/download/v1.7.2/whois-linux-amd64.zip)
-- [32-bit](https://github.com/likexian/whois/releases/download/v1.7.2/whois-linux-386.zip)
+- [64-bit](https://github.com/likexian/whois/releases/download/v1.9.0/whois-linux-amd64.zip)
+- [32-bit](https://github.com/likexian/whois/releases/download/v1.9.0/whois-linux-386.zip)
 
 ### Windows
 
-- [64-bit](https://github.com/likexian/whois/releases/download/v1.7.2/whois-windows-amd64.zip)
-- [32-bit](https://github.com/likexian/whois/releases/download/v1.7.2/whois-windows-386.zip)
+- [64-bit](https://github.com/likexian/whois/releases/download/v1.9.0/whois-windows-amd64.zip)
+- [32-bit](https://github.com/likexian/whois/releases/download/v1.9.0/whois-windows-386.zip)
 
 ## Usage
 

whois.go

@@ -37,7 +37,7 @@ const (
 
 // Version returns package version
 func Version() string {
-	return "1.8.0"
+	return "1.9.0"
 }
 
 // Author returns package author