bump version to v0.42.0

Release.md

@@ -1,8 +1,7 @@
 ### New
 
-* Support go http pprof.
+* Added new parameter `config_dir` in frpc to run multiple client instances in one process.
 
-### Improve
+### Fix
 
-* Change underlying TCP connection keepalive interval to 2 hours.
-* Create new connection to server for `sudp` visitor when needed, to avoid frequent reconnections.
+* Equal sign in environment variables causes parsing error.

pkg/util/version/version.go

@@ -19,7 +19,7 @@ import (
 	"strings"
 )
 
-var version string = "0.41.0"
+var version string = "0.42.0"
 
 func Full() string {
 	return version