diff --git a/.gitignore b/.gitignore
index 0ce2c01344..f429aecdb4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,3 +36,6 @@ sentry.properties
 # JVM crash and replay logs
 hs_err_pid*.log
 replay_pid*.log
+# Keystore files — never commit signing keys
+*.jks
+*.keystore
diff --git a/CI.md b/CI.md
index 1adbf63000..c6ab8d1d9f 100644
--- a/CI.md
+++ b/CI.md
@@ -60,7 +60,7 @@ A new keystore was generated with:
 Key Alias: futon-key
 Keystore Password: [from setup]
 Key Password: [from setup]
-SHA-256 Fingerprint: BB:1C:14:0D:E0:07:78:59:1F:93:D2:FB:43:AC:B3:5A:BA:86:71:3A:20:8F:6F:1A:D4:2D:29:EC:7D:3A:CD:C5
+SHA-256 Fingerprint: EF:48:B2:2E:F2:C5:40:45:53:1F:6E:76:00:C2:7E:C3:D0:3B:71:22:1E:0B:05:FF:B6:8E:33:57:CF:8E:4D:40
 ```
 
 ## Local Development Setup
@@ -131,7 +131,7 @@ The workflow checks for commits since the last nightly release. If no commits ex
 
 Current release keystore SHA-256 fingerprint:
 ```
-BB:1C:14:0D:E0:07:78:59:1F:93:D2:FB:43:AC:B3:5A:BA:86:71:3A:20:8F:6F:1A:D4:2D:29:EC:7D:3A:CD:C5
+EF:48:B2:2E:F2:C5:40:45:53:1F:6E:76:00:C2:7E:C3:D0:3B:71:22:1E:0B:05:FF:B6:8E:33:57:CF:8E:4D:40
 ```
 
 This matches the built-in app validator check in `AppValidator.kt`. All release builds must use a keystore with this fingerprint for proper app signature validation.
diff --git a/README.md b/README.md
index f3b7f1bcdd..10a74bf9c5 100644
--- a/README.md
+++ b/README.md
@@ -139,7 +139,7 @@ Join our Discord for support, discussion, and announcements: https://discord.gg/
 ### Certificate fingerprints
 
 ```plaintext
-BB:1C:14:0D:E0:07:78:59:1F:93:D2:FB:43:AC:B3:5A:BA:86:71:3A:20:8F:6F:1A:D4:2D:29:EC:7D:3A:CD:C5
+EF:48:B2:2E:F2:C5:40:45:53:1F:6E:76:00:C2:7E:C3:D0:3B:71:22:1E:0B:05:FF:B6:8E:33:57:CF:8E:4D:40
 ```
 
 ### License
diff --git a/app/build.gradle b/app/build.gradle
index 2f5f5520b0..ffee743e27 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -240,4 +240,11 @@ sentry {
     // this will upload your source code to Sentry to show it as part of the stack traces
     // disable if you don't want to expose your sources
     includeSourceContext = true
+
+    // Skip all Sentry Gradle plugin tasks (source upload, mapping upload, etc.)
+    // if SENTRY_AUTH_TOKEN is not provided — avoids build errors in local/dev environments
+    def sentryAuthToken = System.getenv('SENTRY_AUTH_TOKEN')
+    includeSourceContext = sentryAuthToken != null && !sentryAuthToken.isEmpty()
+    autoUploadProguardMapping = sentryAuthToken != null && !sentryAuthToken.isEmpty()
+    autoUploadSourceContext = sentryAuthToken != null && !sentryAuthToken.isEmpty()
 }
diff --git a/app/src/main/kotlin/io/github/landwarderer/futon/core/os/AppValidator.kt b/app/src/main/kotlin/io/github/landwarderer/futon/core/os/AppValidator.kt
index 09dae44cbf..02da60edaa 100644
--- a/app/src/main/kotlin/io/github/landwarderer/futon/core/os/AppValidator.kt
+++ b/app/src/main/kotlin/io/github/landwarderer/futon/core/os/AppValidator.kt
@@ -21,6 +21,6 @@ class AppValidator @Inject constructor(
 	}
 
 	private companion object {
-		private const val CERT_SHA256 = "67e15100bb809301783edcb6348fa3bbf83034d91e62868a91053dbd70db3f18"
+		private const val CERT_SHA256 = "ef48b22ef2c54045531f6e7600c27ec3d03b71221e0b05ffb68e3357cf8e4d40"
 	}
 }
diff --git a/app/src/main/kotlin/io/github/landwarderer/futon/core/prefs/AppSettings.kt b/app/src/main/kotlin/io/github/landwarderer/futon/core/prefs/AppSettings.kt
index ec676d8c8e..dc8de1b4b7 100644
--- a/app/src/main/kotlin/io/github/landwarderer/futon/core/prefs/AppSettings.kt
+++ b/app/src/main/kotlin/io/github/landwarderer/futon/core/prefs/AppSettings.kt
@@ -581,7 +581,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		get() = prefs.getBoolean(KEY_STATS_ENABLED, false)
 
 	var isCrashAnalyticsEnabled: Boolean
-		get() = prefs.getBoolean(KEY_CRASH_ANALYTICS_ENABLED, true)
+		get() = prefs.getBoolean(KEY_CRASH_ANALYTICS_ENABLED, false)
 		set(value) = prefs.edit { putBoolean(KEY_CRASH_ANALYTICS_ENABLED, value) }
 
 	val isAutoLocalChaptersCleanupEnabled: Boolean
diff --git a/app/src/main/res/layout/sheet_welcome.xml b/app/src/main/res/layout/sheet_welcome.xml
index 07a8a0509c..547d278d49 100644
--- a/app/src/main/res/layout/sheet_welcome.xml
+++ b/app/src/main/res/layout/sheet_welcome.xml
@@ -110,7 +110,7 @@
 					android:layout_width="wrap_content"
 					android:layout_height="wrap_content"
 					android:layout_marginStart="@dimen/margin_normal"
-					android:checked="true" />
+					android:checked="false" />
 
 			</LinearLayout>
 
diff --git a/app/src/main/res/xml/pref_services.xml b/app/src/main/res/xml/pref_services.xml
index 692b65fc79..d8de8d6e63 100644
--- a/app/src/main/res/xml/pref_services.xml
+++ b/app/src/main/res/xml/pref_services.xml
@@ -78,7 +78,7 @@
 		app:icon="@drawable/ic_discord" />
 
 	<SwitchPreferenceCompat
-		android:defaultValue="true"
+		android:defaultValue="false"
 		android:key="crash_analytics_enabled"
 		android:summary="@string/crash_reporting_summary"
 		android:title="@string/crash_reporting"