release 3.5.0 (#264)

* release 3.5.0

* update date of release

Author: thomaszurkan-optimizely

CHANGELOG.md

@@ -1,7 +1,16 @@
 # Optimizely Ruby SDK Changelog
 
-## [Unreleased]
+## 3.5.0
+July 9th, 2020
+
+### New Features:
+- Add support for JSON feature variables ([#251](https://github.com/optimizely/ruby-sdk/pull/251))
+- Add support for authenticated datafiles ([#255](https://github.com/optimizely/ruby-sdk/pull/255))
 - Added support for authenticated datafiles. `HTTPProjectConfigManager` now accepts `datafile_access_token` to be able to fetch authenticated datafiles.
+- Add support for proxy server for http config manager. ([#262](https://github.com/optimizely/ruby-sdk/pull/262))
+### Bug Fixes:
+- Handle error with error handler in async scheduler ([#248](https://github.com/optimizely/ruby-sdk/pull/248)).
+- Change single audience result to debug ([#254](https://github.com/optimizely/ruby-sdk/pull/254)).
 
 ## 3.5.0-beta
 June 17th, 2020

lib/optimizely/version.rb

@@ -17,5 +17,5 @@
 #
 module Optimizely
   CLIENT_ENGINE = 'ruby-sdk'
-  VERSION = '3.5.0-beta'
+  VERSION = '3.5.0'
 end