Set new development version.

Author: novabyte

CHANGELOG.md

@@ -3,6 +3,9 @@ All notable changes to this project are documented below.
 
 The format is based on [keep a changelog](http://keepachangelog.com) and this project uses [semantic versioning](http://semver.org).
 
+## [Unreleased]
+
+
 ## [3.5.0] - 2021-08-10
 ### Added
 - Handle thrown JS runtime custom exceptions containing a message and a grpc code to be returned in the server response.