update .travis.yml

qmuntal · qmuntal · commit 2f13353df9e6 · 2020-10-16T19:40:32.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -4,9 +4,14 @@ language: go
 go_import_path: github.com/qmuntal/opc
 
 go:
-  - 1.12.x
   - 1.13.x
   - 1.14.x
+  - 1.15.x
+
+os:
+  - linux
+  - windows
+  - osx
 
 env:
   - GO111MODULE=on
