diff --git a/.gitignore b/.gitignore
index 8c7582c3a2..c43e108f51 100644
--- a/.gitignore
+++ b/.gitignore
@@ -71,3 +71,4 @@
 /xcodebuild
 /.vscode
 !webrtc/*
+out_ios_libs
diff --git a/README.md b/README.md
index e91fb16ce7..23f82d3f4b 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,11 @@
+This repository is a private branch of [Google's WebRTC Source](https://chromium.googlesource.com/external/webrtc.git).
+
+This repository is used to compile [SendBirdWebRTC](https://github.com/sendbird/sendbird-webrtc-ios), and keep track of SendBird's changes.
+
+In order to use this repository as a reflection of Google's Public WebRTC source, refer to this [medium guide](https://medium.com/@bilalbayasut/github-how-to-make-a-fork-of-public-repository-private-6ee8cacaf9d3) to fork public repository into this private repository. 
+
+---
+
 **WebRTC is a free, open software project** that provides browsers and mobile
 applications with Real-Time Communications (RTC) capabilities via simple APIs.
 The WebRTC components have been optimized to best serve this purpose.
diff --git a/sdk/objc/api/peerconnection/RTCPeerConnection.h b/sdk/objc/api/peerconnection/RTCPeerConnection.h
index bb8d87bc2d..38a5dc2a4d 100644
--- a/sdk/objc/api/peerconnection/RTCPeerConnection.h
+++ b/sdk/objc/api/peerconnection/RTCPeerConnection.h
@@ -343,6 +343,7 @@ RTC_OBJC_EXPORT
 
 typedef void (^RTCStatisticsCompletionHandler)(RTC_OBJC_TYPE(RTCStatisticsReport) *);
 
+RTC_OBJC_EXPORT
 @interface RTC_OBJC_TYPE (RTCPeerConnection)
 (Stats)
 
diff --git a/tools_webrtc/ios/build_ios_libs.py b/tools_webrtc/ios/build_ios_libs.py
index b0d28c0151..538bbad2e8 100755
--- a/tools_webrtc/ios/build_ios_libs.py
+++ b/tools_webrtc/ios/build_ios_libs.py
@@ -33,8 +33,8 @@
 SDK_FRAMEWORK_NAME = 'WebRTC.framework'
 
 DEFAULT_ARCHS = ENABLED_ARCHS = ['arm64', 'arm', 'x64', 'x86']
-IOS_DEPLOYMENT_TARGET = '10.0'
-LIBVPX_BUILD_VP9 = False
+IOS_DEPLOYMENT_TARGET = '9.0'
+LIBVPX_BUILD_VP9 = True
 
 sys.path.append(os.path.join(SCRIPT_DIR, '..', 'libs'))
 from generate_licenses import LicenseBuilder
@@ -59,7 +59,7 @@ def _ParseArgs():
            'If specified together with -c, deletes the dir.')
   parser.add_argument('-r', '--revision', type=int, default=0,
       help='Specifies a revision number to embed if building the framework.')
-  parser.add_argument('-e', '--bitcode', action='store_true', default=False,
+  parser.add_argument('-e', '--bitcode', action='store_true', default=True,
       help='Compile with bitcode.')
   parser.add_argument('--verbose', action='store_true', default=False,
       help='Debug logging.')