prepare for release 3.3.1 (#312)

Author: jaeopt

.travis.yml

@@ -113,7 +113,7 @@ jobs:
       os: osx
       osx_image: xcode11.3
       env:
-        - VERSION=3.3.0
+        - VERSION=3.3.1
       install:
         # install hub
         - wget https://github.com/github/hub/releases/download/v2.11.2/hub-darwin-amd64-2.11.2.tgz -O /tmp/hub-darwin-amd64-2.11.2.tgz && tar -xvf /tmp/hub-darwin-amd64-2.11.2.tgz -C /usr/local/opt && ln -s /usr/local/opt/hub-darwin-amd64-2.11.2/bin/hub /usr/local/bin/hub
@@ -130,7 +130,7 @@ jobs:
       os: osx
       osx_image: xcode11.3
       env:
-        - VERSION=3.3.0
+        - VERSION=3.3.1
       install:
         # install hub
         - wget https://github.com/github/hub/releases/download/v2.11.2/hub-darwin-amd64-2.11.2.tgz -O /tmp/hub-darwin-amd64-2.11.2.tgz && tar -xvf /tmp/hub-darwin-amd64-2.11.2.tgz -C /usr/local/opt && ln -s /usr/local/opt/hub-darwin-amd64-2.11.2/bin/hub /usr/local/bin/hub

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Optimizely Swift SDK Changelog
 
+## 3.3.1
+March 30, 2020
+
+### Bug Fixes
+* When a datafile download for initialization returns connection errors, the SDK fails to initialize. This is fixed to continue initialization with a cached datafile. ([#308](https://github.com/optimizely/swift-sdk/pull/308))
+* Events are not stored persistently in the tvOS devices. ([#310](https://github.com/optimizely/swift-sdk/pull/310), [#311](https://github.com/optimizely/swift-sdk/pull/311))
+
 ## 3.3.0
 March 11, 2020