diff --git a/.xcode-version b/.xcode-version
index 9dc738e6..441e3fb3 100644
--- a/.xcode-version
+++ b/.xcode-version
@@ -1 +1 @@
-15.0.1
\ No newline at end of file
+15.4
\ No newline at end of file
diff --git a/Demo/Demo.xcconfig b/Demo/Demo.xcconfig
index 7418dddb..b33ecee9 100644
--- a/Demo/Demo.xcconfig
+++ b/Demo/Demo.xcconfig
@@ -1,5 +1,5 @@
 // Version information
-MARKETING_VERSION = 9.1.0
+MARKETING_VERSION = 9.1.1
 
 // Deployment targets
 IPHONEOS_DEPLOYMENT_TARGET = 12.0
diff --git a/Gemfile.lock b/Gemfile.lock
index ef6facd5..7a393144 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -168,7 +168,8 @@ GEM
       trailblazer-option (>= 0.1.1, < 0.2.0)
       uber (< 0.2.0)
     retriable (3.1.2)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rouge (2.0.7)
     ruby2_keywords (0.0.5)
     rubyzip (2.3.2)
@@ -181,6 +182,7 @@ GEM
     simctl (1.6.10)
       CFPropertyList
       naturally
+    strscan (3.1.0)
     terminal-notifier (2.0.0)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
diff --git a/Package.swift b/Package.swift
index b425e466..39c2dc18 100644
--- a/Package.swift
+++ b/Package.swift
@@ -3,7 +3,7 @@
 import PackageDescription
 
 struct ProjectSettings {
-    static let marketingVersion: String = "9.1.0"
+    static let marketingVersion: String = "9.1.1"
 }
 
 let package = Package(
diff --git a/Sources/SRGAnalytics/SRGAnalytics.m b/Sources/SRGAnalytics/SRGAnalytics.m
index 62b35f41..49d08df2 100644
--- a/Sources/SRGAnalytics/SRGAnalytics.m
+++ b/Sources/SRGAnalytics/SRGAnalytics.m
@@ -6,6 +6,8 @@
 
 #import "SRGAnalytics.h"
 
+#warning "SRG Analytics will be sunset in August 2025. Please upgrade to Pillarbox Analytics (https://github.com/SRGSSR/pillarbox-apple)."
+
 NSString *SRGAnalyticsMarketingVersion(void)
 {
     return @MARKETING_VERSION;
diff --git a/Sources/SRGAnalyticsMediaPlayer/SRGMediaPlayerTracker.m b/Sources/SRGAnalyticsMediaPlayer/SRGMediaPlayerTracker.m
index 129a822b..3e2e628a 100644
--- a/Sources/SRGAnalyticsMediaPlayer/SRGMediaPlayerTracker.m
+++ b/Sources/SRGAnalyticsMediaPlayer/SRGMediaPlayerTracker.m
@@ -234,6 +234,9 @@ - (void)recordEvent:(MediaPlayerTrackerEvent)event
     if (self.lastAudioTrackMediaOption) {
         NSString *audioTrackLanguageCode = [self.lastAudioTrackMediaOption.locale objectForKey:NSLocaleLanguageCode] ?: @"und";
         [labels srg_safelySetString:audioTrackLanguageCode.uppercaseString forKey:@"media_audio_track"];
+        
+        BOOL audioDescribed = [self.lastAudioTrackMediaOption hasMediaCharacteristic:AVMediaCharacteristicDescribesVideoForAccessibility];
+        [labels srg_safelySetString:audioDescribed ? @"true" : @"false" forKey:@"media_audiodescription_on"];
     }
     
     [labels srg_safelySetString:self.bandwidthInBitsPerSecond.stringValue forKey:@"media_bandwidth"];
diff --git a/docs/README.md b/docs/README.md
index a44f6770..6a5dde28 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -2,6 +2,11 @@
 
 [![GitHub releases](https://img.shields.io/github/v/release/SRGSSR/srganalytics-apple)](https://github.com/SRGSSR/srganalytics-apple/releases) [![platform](https://img.shields.io/badge/platfom-ios%20%7C%20tvos-blue)](https://github.com/SRGSSR/srganalytics-apple) [![SPM compatible](https://img.shields.io/badge/SPM-compatible-4BC51D.svg?style=flat)](https://swift.org/package-manager) [![GitHub license](https://img.shields.io/github/license/SRGSSR/srganalytics-apple)](https://github.com/SRGSSR/srganalytics-apple/blob/master/LICENSE)
 
+> [!IMPORTANT]
+> Letterbox will be sunset in August 2025, replaced by [Pillarbox](https://github.com/SRGSSR/pillarbox-apple). SRG Analytics will be decommissioned as well, replaced by an equivalent Analytics package available from Pillarbox:
+>  - New SRG SSR products must use Pillarbox Analytics only.
+>  - Existing SRG SSR products using SRG Analytics must transition to Pillarbox Analytics before this date.
+
 ## About
 
 The SRG Analytics library makes it easy to add usage tracking information to your iOS and tvOS applications, following the SRG SSR standards.
diff --git a/fastlane/Fastfile b/fastlane/Fastfile
index 44eba153..93f786bf 100644
--- a/fastlane/Fastfile
+++ b/fastlane/Fastfile
@@ -26,8 +26,8 @@ platform :ios do
     clean_result_files
     clean_derived_data
 
-    iphone14 = Device.new('iOS', 'iPhone 14')
-    appletv = Device.new('tvOS', 'Apple TV,OS=17.0')
+    iphone14 = Device.new('iOS', 'iPhone 15')
+    appletv = Device.new('tvOS', 'Apple TV')
     devices = [iphone14, appletv]
 
     scheme = swift_package_name