DEX Code Optimization

From February 2027 Google Play requires release builds to reach at least 25% in DEX code optimization. Apply the two steps below so your app meets this requirement.

Step 1: Update the Release Build Type

Add the optimization block to the release build type of your app module.

Kotlin DSL

app/build.gradle.kts

android {
    buildTypes {
        release {
            // your existing settings
            optimization {
                keepRules {
                    ignoreFrom(
                        "com.applovin.mediation:vungle-adapter",
                        "com.applovin.mediation:inmobi-adapter",
                        "com.google.ads.mediation:inmobi"
                    )
                }
            }
        }
    }
}

Groovy

app/build.gradle

android {
    buildTypes {
        release {
            // your existing settings
            optimization {
                keepRules {
                    ignoreFrom("com.applovin.mediation:vungle-adapter",
                               "com.applovin.mediation:inmobi-adapter",
                               "com.google.ads.mediation:inmobi")
                }
            }
        }
    }
}

note

The ignoreFrom call needs Android Gradle Plugin 8.6 or newer.

Step 2: Add the ProGuard Rules

Add these rules to the ProGuard file of your app module.

app/proguard-rules.pro

-keep class com.vungle.ads.** { *; }
-keep class com.inmobi.** { *; }
-keep class com.squareup.picasso.** { *; }
-keep class androidx.browser.customtabs.CustomTabsService { *; }
-keep class androidx.recyclerview.widget.RecyclerView { *; }
-keep class * implements com.google.gson.TypeAdapterFactory
-keep class * implements com.google.gson.JsonSerializer
-keep class * implements com.google.gson.JsonDeserializer
-keepattributes Signature
-keepattributes *Annotation*
-dontwarn com.inmobi.**
-dontwarn com.squareup.okhttp.**
-dontwarn com.moat.**
-dontwarn sun.misc.**