Bump version; update changelog

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## v2.2.2
+
+- Memory usage optimizations.
+
 ## v2.2.1
 
 - Source file size limit;

main.go

@@ -11,7 +11,7 @@ import (
 	_ "net/http/pprof"
 )
 
-const version = "2.2.1"
+const version = "2.2.2"
 
 type ctxKey string