Update UserAgent to be backward compatible (#304)

Author: crazytonyli

Automattic-Tracks-iOS.podspec

@@ -2,7 +2,7 @@
 
 Pod::Spec.new do |s|
   s.name          = 'Automattic-Tracks-iOS'
-  s.version       = '3.5.3'
+  s.version       = '3.5.4'
 
   s.summary       = 'Simple way to track events in an iOS app with Automattic Tracks internal service'
   s.description   = <<-DESC

CHANGELOG.md

@@ -48,6 +48,12 @@ _None._
 
 _None._
 
+## 3.5.4
+
+### Internal Changes
+
+- Make user agent compatible with existing values [#304]
+
 ## 3.5.3
 
 ### Internal Changes

Sources/Event Logging/TracksService.m

@@ -475,7 +475,7 @@ - (NSString *)userAgent
         NSString *deviceModel = self.deviceInformation.model;
         NSString *osName = self.deviceInformation.os;
         NSString *osVersion = self.deviceInformation.version;
-        return [NSString stringWithFormat:@"Nosara Client %@ for %@, %@:%@", TracksLibraryVersion, deviceModel, osName, osVersion];
+        return [NSString stringWithFormat:@"Nosara Client for %@; %@/%@; %@", deviceModel, osName, osVersion, TracksLibraryVersion];
     #endif
 
     #if TARGET_OS_MAC

Sources/Model/ObjC/Constants/TracksConstants.m

@@ -1,4 +1,4 @@
 #import "TracksConstants.h"
 
 NSString *const TracksErrorDomain = @"TracksErrorDomain";
-NSString *const TracksLibraryVersion = @"3.5.3";
+NSString *const TracksLibraryVersion = @"3.5.4";