diff --git a/Agent/Utilities/NRLogger.m b/Agent/Utilities/NRLogger.m
index c1ad8c5e..43ed95e0 100644
--- a/Agent/Utilities/NRLogger.m
+++ b/Agent/Utilities/NRLogger.m
@@ -330,6 +330,24 @@ - (NSMutableDictionary*) commonBlockDict {
     if (nativePlatform) [commonAttributes setObject:nativePlatform forKey:NRLogMessageInstrumentationCollectorKey];
     if (nrAppId) [commonAttributes setObject:nrAppId forKey:NRLogMessageAppIdKey];
 
+
+    NSString* sessionAttributes = [[NewRelicAgentInternal sharedInstance].analyticsController sessionAttributeJSONString];
+    if (sessionAttributes != nil && [sessionAttributes length] > 0) {
+        NSDictionary* dictionary = [NSJSONSerialization JSONObjectWithData:[sessionAttributes dataUsingEncoding:NSUTF8StringEncoding]
+                                                                   options:0
+                                                                     error:nil];
+        for (NSString *key in dictionary) {
+            id value = [dictionary objectForKey:key];
+
+
+            if (value) {
+                [commonAttributes setObject:value forKey:key];
+            }
+        }
+    }
+
+
+
     return commonAttributes;
 }
 
@@ -598,7 +616,6 @@ - (void) processNextUploadTask {
         NSData *formattedData = [self->uploadQueue firstObject];
         
         if (self->debugLogs) {
-            //NSString* logMessagesJson = [NSString stringWithFormat:@"[ %@ ]", [[NSString alloc] initWithData:formattedData encoding:NSUTF8StringEncoding]];
             NSArray* decode = [NSJSONSerialization JSONObjectWithData:formattedData
                                                                    options:0
                                                                      error:nil];
@@ -609,9 +626,6 @@ - (void) processNextUploadTask {
         NSMutableURLRequest* req = [NSMutableURLRequest requestWithURL:[NSURL URLWithString: self->logURL]];
         [req setValue:self->logIngestKey forHTTPHeaderField:@"X-App-License-Key"];
         [req setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
-
-        //NSString* contentEncoding = message.length <= 512 ? kNRMAIdentityHeader : kNRMAGZipHeader;
-
         [req setValue:kNRMAGZipHeader forHTTPHeaderField:kNRMAContentEncodingHeader];
 
         req.HTTPMethod = @"POST";
diff --git a/Tests/Unit-Tests/NewRelicAgentTests/Uncategorized/NRLoggerTests.h b/Tests/Unit-Tests/NewRelicAgentTests/Uncategorized/NRLoggerTests.h
index 71f918bf..6150a793 100644
--- a/Tests/Unit-Tests/NewRelicAgentTests/Uncategorized/NRLoggerTests.h
+++ b/Tests/Unit-Tests/NewRelicAgentTests/Uncategorized/NRLoggerTests.h
@@ -18,4 +18,7 @@
 }
 @property (nonatomic) int fileDescriptor;
 @property (nonatomic, strong) dispatch_source_t source;
+
+@property id mockNewRelicInternals;
+
 @end
diff --git a/Tests/Unit-Tests/NewRelicAgentTests/Uncategorized/NRLoggerTests.m b/Tests/Unit-Tests/NewRelicAgentTests/Uncategorized/NRLoggerTests.m
index da02f03c..f89990c1 100644
--- a/Tests/Unit-Tests/NewRelicAgentTests/Uncategorized/NRLoggerTests.m
+++ b/Tests/Unit-Tests/NewRelicAgentTests/Uncategorized/NRLoggerTests.m
@@ -24,12 +24,16 @@
 #import "NRTestConstants.h"
 #import "NRAutoLogCollector.h"
 #import <os/log.h>
+#import "NewRelicAgentInternal.h"
+#import <OCMock/OCMock.h>
 
 @interface NRLogger()
 + (NRLogger *)logger;
 - (NSMutableDictionary*) commonBlockDict;
 @end
 
+static NewRelicAgentInternal* _sharedInstance;
+
 @implementation NRLoggerTests
 - (void) setUp
 {
@@ -39,9 +43,16 @@ - (void) setUp
 
     [NRLogger setLogLevels:NRLogLevelDebug];
     [NRLogger setRemoteLogLevel:NRLogLevelDebug];
-
     [NRLogger setLogEntityGuid:@"Entity-Guid-XXXX"];
 
+
+    self.mockNewRelicInternals = [OCMockObject mockForClass:[NewRelicAgentInternal class]];
+    _sharedInstance = [[NewRelicAgentInternal alloc] init];
+    _sharedInstance.analyticsController = [[NRMAAnalytics alloc] initWithSessionStartTimeMS:0.0];
+    [[[[self.mockNewRelicInternals stub] classMethod] andReturn:_sharedInstance] sharedInstance];
+    
+    [_sharedInstance.analyticsController setSessionAttribute:@"myAttribute" value:@(1)];
+
     NRMAAgentConfiguration *config = [[NRMAAgentConfiguration alloc] initWithAppToken:[[NRMAAppToken alloc] initWithApplicationToken:kNRMA_ENABLED_STAGING_APP_TOKEN]
                                                                      collectorAddress:KNRMA_TEST_COLLECTOR_HOST
                                                                          crashAddress:nil];
@@ -86,7 +97,8 @@ - (void) tearDown
     
     [NRMAMeasurements removeMeasurementConsumer:helper];
     helper = nil;
-
+    [self.mockNewRelicInternals stopMocking];
+    _sharedInstance = nil;
     [NRMAMeasurements shutdown];
     [NRMAFlags disableFeatures: NRFeatureFlag_LogReporting];
     [NRLogger setLogTargets:NRLogTargetConsole];
@@ -183,6 +195,10 @@ - (void) testNRLogger {
     XCTAssertTrue([[decodedCommonBlock objectForKey:NRLogMessageInstrumentationProviderKey] isEqualToString:NRLogMessageMobileValue],@"instrumentation provider set incorrectly");
     XCTAssertTrue([[decodedCommonBlock objectForKey:NRLogMessageInstrumentationVersionKey] isEqualToString:@"DEV"],@"instrumentation name set incorrectly");
 
+    // Check for added session attributes
+    XCTAssertTrue([[decodedCommonBlock objectForKey:@"myAttribute"] isEqualToNumber:@(1)],@"session attribute set incorrectly");
+
+
 #if TARGET_OS_WATCH
     XCTAssertTrue([[decodedCommonBlock objectForKey:NRLogMessageInstrumentationNameKey] isEqualToString:@"watchOSAgent"],@"instrumentation name set incorrectly");
 #else