diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 9a70b32560..912a9bc5f9 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -1,4 +1,5 @@
 // START Non-FOSS component
+import com.google.firebase.crashlytics.buildtools.gradle.CrashlyticsExtension
 import com.google.firebase.crashlytics.buildtools.gradle.CrashlyticsPlugin
 // END Non-FOSS component
 import com.google.gms.googleservices.GoogleServicesPlugin
@@ -73,12 +74,17 @@ android {
             }
         }
         release {
-            isMinifyEnabled = true
-            isShrinkResources = true
-            proguardFiles(
-                getDefaultProguardFile("proguard-android-optimize.txt"),
-                "proguard-rules.pro",
-            )
+            optimization {
+                enable = true
+            }
+            // START Non-FOSS component
+            if (project.file("google-services.json").exists()) {
+                configure<CrashlyticsExtension> {
+                    // Crashlytics 3.0.8 still detects the legacy minify flag.
+                    mappingFileUploadEnabled = true
+                }
+            }
+            // END Non-FOSS component
             if (hasSigningProps) {
                 signingConfig = signingConfigs.getByName("flare")
             } else {
@@ -245,4 +251,3 @@ kotlin {
         }
     }
 }
-
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
deleted file mode 100644
index a01abe7e78..0000000000
--- a/app/proguard-rules.pro
+++ /dev/null
@@ -1,93 +0,0 @@
-# Add project specific ProGuard rules here.
-# You can control the set of applied configuration files using the
-# proguardFiles setting in build.gradle.
-#
-# For more details, see
-#   http://developer.android.com/guide/developing/tools/proguard.html
-
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
-
-# Uncomment this to preserve the line number information for
-# debugging stack traces.
-#-keepattributes SourceFile,LineNumberTable
-
-# If you keep the line number information, uncomment this to
-# hide the original source file name.
-#-renamesourcefileattribute SourceFile
-
-# When editing this file, update the following files as well:
-# - META-INF/com.android.tools/proguard/coroutines.pro
-# - META-INF/com.android.tools/r8/coroutines.pro
-
-# ServiceLoader support
--keepnames class kotlinx.coroutines.internal.MainDispatcherFactory {}
--keepnames class kotlinx.coroutines.CoroutineExceptionHandler {}
-
-# Most of volatile fields are updated with AFU and should not be mangled
--keepclassmembers class kotlinx.coroutines.** {
-    volatile <fields>;
-}
-
-# Same story for the standard library's SafeContinuation that also uses AtomicReferenceFieldUpdater
--keepclassmembers class kotlin.coroutines.SafeContinuation {
-    volatile <fields>;
-}
-
-# These classes are only required by kotlinx.coroutines.debug.AgentPremain, which is only loaded when
-# kotlinx-coroutines-core is used as a Java agent, so these are not needed in contexts where ProGuard is used.
--dontwarn java.lang.instrument.ClassFileTransformer
--dontwarn sun.misc.SignalHandler
--dontwarn java.lang.instrument.Instrumentation
--dontwarn sun.misc.Signal
-
-# Only used in `kotlinx.coroutines.internal.ExceptionsConstructor`.
-# The case when it is not available is hidden in a `try`-`catch`, as well as a check for Android.
--dontwarn java.lang.ClassValue
-
-# An annotation used for build tooling, won't be directly accessed.
--dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
-
-# JSR 305 annotations are for embedding nullability information.
--dontwarn javax.annotation.**
-
-# A resource is loaded with a relative path so the package of this class must be preserved.
--adaptresourcefilenames okhttp3/internal/publicsuffix/PublicSuffixDatabase.gz
-
-# Animal Sniffer compileOnly dependency to ensure APIs are compatible with older versions of Java.
--dontwarn org.codehaus.mojo.animal_sniffer.*
-
-# OkHttp platform used only on JVM and when Conscrypt and other security providers are available.
--dontwarn okhttp3.internal.platform.**
--dontwarn org.conscrypt.**
--dontwarn org.bouncycastle.**
--dontwarn org.openjsse.**
-
--dontwarn org.slf4j.impl.StaticLoggerBinder
-
--if class androidx.credentials.CredentialManager
--keep class androidx.credentials.playservices.** {
-  *;
-}
--keepnames class ** { *; }
-
-# for JNA
--keep class com.sun.jna.* { *; }
--keepclassmembers class * extends com.sun.jna.* { public *; }
-
-# UniFFI/JNA generated bindings for nostr-sdk-kmp live under rust.nostr.sdk.
-# The upstream consumer rules only keep rust.nostr.*, which misses the actual
-# Android package and lets R8 rewrite the JNA interfaces used by Native.load().
--keep class rust.nostr.sdk.** { *; }
--keep interface rust.nostr.sdk.** { *; }
--keepclassmembers class rust.nostr.sdk.** { *; }
--keepclassmembers interface rust.nostr.sdk.** { *; }
--dontwarn java.lang.management.**
--dontwarn javax.management.**
--assumevalues public class androidx.compose.runtime.ComposeRuntimeFlags {
-    static boolean isLinkBufferComposerEnabled return true;
-}
\ No newline at end of file
diff --git a/app/src/main/keepRules/app.keep b/app/src/main/keepRules/app.keep
new file mode 100644
index 0000000000..84da1518ed
--- /dev/null
+++ b/app/src/main/keepRules/app.keep
@@ -0,0 +1,22 @@
+# Temporary compatibility workaround for Ktorfit 2.7.5.
+# ktorfit-lib-light-android omits the rule bundled in the JVM artifact, which
+# allows R8 to break the generic type data consumed by response converters.
+# Re-evaluate after upgrading to an Android artifact that bundles the rule.
+-keep class de.jensklingenberg.ktorfit.** { *; }
+
+# Temporary compatibility workaround for nostr-sdk-kmp 0.44.8.
+# Its published Android consumer rule targets rust.nostr.*, while the generated
+# UniFFI/JNA bindings are in rust.nostr.sdk. Re-evaluate after upgrading it or
+# validating that the narrower JNA boundary rules are sufficient in release.
+-keep class rust.nostr.sdk.** { *; }
+
+# Optional JVM management APIs are not available on Android. Keep these
+# suppressions until a clean optimized release succeeds without them.
+-dontwarn java.lang.management.**
+-dontwarn javax.management.**
+
+# Intentional optimizer assumption: force link-buffer composer on in release.
+# Remove this rule if the project should follow Compose runtime's default.
+-assumevalues public class androidx.compose.runtime.ComposeRuntimeFlags {
+    static boolean isLinkBufferComposerEnabled return true;
+}
diff --git a/build-logic/build.gradle.kts b/build-logic/build.gradle.kts
index 95845735f6..f4350e8c15 100644
--- a/build-logic/build.gradle.kts
+++ b/build-logic/build.gradle.kts
@@ -10,7 +10,7 @@ repositories {
 }
 
 dependencies {
-    compileOnly("com.android.tools.build:gradle:9.3.1")
+    compileOnly("com.android.tools.build:gradle:9.3.2")
     compileOnly("org.jetbrains.kotlin:kotlin-gradle-plugin:2.4.10")
     implementation("org.jlleitschuh.gradle:ktlint-gradle:14.2.0")
 }