diff --git a/examples/go.mod b/examples/go.mod
index 3f95468..3caaf39 100644
--- a/examples/go.mod
+++ b/examples/go.mod
@@ -8,19 +8,17 @@ require (
 	github.com/apache/pulsar-client-go v0.3.0
 	github.com/go-redis/redis v6.15.9+incompatible
 	github.com/gorilla/websocket v1.4.2
-	github.com/reugn/go-streams v0.6.0
-	github.com/reugn/go-streams/aerospike v0.6.0
-	github.com/reugn/go-streams/kafka v0.6.0
-	github.com/reugn/go-streams/pulsar v0.6.0
-	github.com/reugn/go-streams/redis v0.6.0
-	github.com/reugn/go-streams/ws v0.6.0
+	github.com/reugn/go-streams v0.6.2
+	github.com/reugn/go-streams/aerospike v0.0.0
+	github.com/reugn/go-streams/kafka v0.0.0
+	github.com/reugn/go-streams/pulsar v0.0.0
+	github.com/reugn/go-streams/redis v0.0.0
+	github.com/reugn/go-streams/ws v0.0.0
 )
 
 replace (
 	github.com/reugn/go-streams => ../
 	github.com/reugn/go-streams/aerospike => ../aerospike
-	github.com/reugn/go-streams/extension => ../extension
-	github.com/reugn/go-streams/flow => ../flow
 	github.com/reugn/go-streams/kafka => ../kafka
 	github.com/reugn/go-streams/pulsar => ../pulsar
 	github.com/reugn/go-streams/redis => ../redis
diff --git a/extension/doc.go b/extension/doc.go
new file mode 100644
index 0000000..a0e7204
--- /dev/null
+++ b/extension/doc.go
@@ -0,0 +1,2 @@
+// Package extension provides basic connector implementations.
+package extension
diff --git a/util/doc.go b/util/doc.go
new file mode 100644
index 0000000..d8d5de9
--- /dev/null
+++ b/util/doc.go
@@ -0,0 +1,2 @@
+// Package util provides utility functions.
+package util
diff --git a/util/ospkg/doc.go b/util/ospkg/doc.go
new file mode 100644
index 0000000..682dc03
--- /dev/null
+++ b/util/ospkg/doc.go
@@ -0,0 +1,2 @@
+// Package ospkg provides platform-specific utility functions and constants.
+package ospkg