diff --git a/package-lock.json b/package-lock.json
index 70fd7c6..0a77f9a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "object-observer",
-  "version": "3.1.1",
+  "version": "3.2.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 2e5853a..84e7366 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "object-observer",
-	"version": "3.1.1",
+	"version": "3.2.0",
 	"description": "object-observer utility provides simple means to (deeply) observe specified object/array changes; implemented via native Proxy; changes delivered in a synchronous way",
 	"keywords": [
 		"object",
diff --git a/readme.md b/readme.md
index 1141afe..086f750 100644
--- a/readme.md
+++ b/readme.md
@@ -16,7 +16,7 @@ Main aspects and features:
 
 * nested objects of the observable graph are observables too
 
-* changes delivered in a __synchronous__ way by default, __asynchronous__ delivery (experimental) is optionally available as per `Observable` configuration
+* changes delivered in a __synchronous__ way by default, __asynchronous__ delivery (experimental) is optionally available as per `Observable` configuration; [more details here](docs/sync-async.md)
 
 * observed path may optionally be filtered as per `observer` configuration; [more details here](docs/filter-paths.md)