Update retrofit from 2.9.0 to 2.11.0

- Replace Jake Wharton's Kotlinx Serialization converter with new retrofit's `converter-kotlinx-serialization`.
- Remove custom Proguard rules that are now part of the dependency: https://github.com/square/retrofit/tree/trunk/retrofit-response-type-keeper#readme

Changelog: https://github.com/square/retrofit/blob/trunk/CHANGELOG.md

app/build.gradle.kts

@@ -48,7 +48,7 @@ android {
         release {
             isMinifyEnabled = true
             applicationIdSuffix = NiaBuildType.RELEASE.applicationIdSuffix
-            proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
+            proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"))
 
             // To publish on the Play store a private signing key is required, but to allow anyone
             // who clones the code to sign and run the release variant, use the debug signing key.

app/dependencies/prodReleaseRuntimeClasspath.txt

@@ -190,12 +190,12 @@ com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava
 com.google.j2objc:j2objc-annotations:1.3
 com.google.protobuf:protobuf-javalite:4.26.1
 com.google.protobuf:protobuf-kotlin-lite:4.26.1
-com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter:1.0.0
+com.squareup.retrofit2:converter-kotlinx-serialization:2.11.0
 com.squareup.okhttp3:logging-interceptor:4.12.0
 com.squareup.okhttp3:okhttp:4.12.0
 com.squareup.okio:okio-jvm:3.9.0
 com.squareup.okio:okio:3.9.0
-com.squareup.retrofit2:retrofit:2.9.0
+com.squareup.retrofit2:retrofit:2.10.0
 io.coil-kt:coil-base:2.7.0
 io.coil-kt:coil-compose-base:2.7.0
 io.coil-kt:coil-compose:2.7.0

app/proguard-rules.pro

@@ -1,9 +0,0 @@
-# Fix for Retrofit issue https://github.com/square/retrofit/issues/3751
-# Keep generic signature of Call, Response (R8 full mode strips signatures from non-kept items).
--keep,allowobfuscation,allowshrinking interface retrofit2.Call
--keep,allowobfuscation,allowshrinking class retrofit2.Response
-
-# With R8 full mode generic signatures are stripped for classes that are not
-# kept. Suspend functions are wrapped in continuations where the type argument
-# is used.
--keep,allowobfuscation,allowshrinking class kotlin.coroutines.Continuation

core/network/src/main/kotlin/com/google/samples/apps/nowinandroid/core/network/retrofit/RetrofitNiaNetwork.kt

@@ -22,12 +22,12 @@ import com.google.samples.apps.nowinandroid.core.network.NiaNetworkDataSource
 import com.google.samples.apps.nowinandroid.core.network.model.NetworkChangeList
 import com.google.samples.apps.nowinandroid.core.network.model.NetworkNewsResource
 import com.google.samples.apps.nowinandroid.core.network.model.NetworkTopic
-import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFactory
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.Json
 import okhttp3.Call
 import okhttp3.MediaType.Companion.toMediaType
 import retrofit2.Retrofit
+import retrofit2.converter.kotlinx.serialization.asConverterFactory
 import retrofit2.http.GET
 import retrofit2.http.Query
 import javax.inject.Inject

gradle/libs.versions.toml

@@ -48,7 +48,7 @@ moduleGraph = "2.5.0"
 okhttp = "4.12.0"
 protobuf = "4.26.1"
 protobufPlugin = "0.9.4"
-retrofit = "2.9.0"
+retrofit = "2.11.0"
 retrofitKotlinxSerializationJson = "1.0.0"
 robolectric = "4.12.2"
 roborazzi = "1.7.0"
@@ -139,7 +139,7 @@ okhttp-logging = { group = "com.squareup.okhttp3", name = "logging-interceptor",
 protobuf-kotlin-lite = { group = "com.google.protobuf", name = "protobuf-kotlin-lite", version.ref = "protobuf" }
 protobuf-protoc = { group = "com.google.protobuf", name = "protoc", version.ref = "protobuf" }
 retrofit-core = { group = "com.squareup.retrofit2", name = "retrofit", version.ref = "retrofit" }
-retrofit-kotlin-serialization = { group = "com.jakewharton.retrofit", name = "retrofit2-kotlinx-serialization-converter", version.ref = "retrofitKotlinxSerializationJson" }
+retrofit-kotlin-serialization = { group = "com.squareup.retrofit2", name = "converter-kotlinx-serialization", version.ref = "retrofit" }
 robolectric = { group = "org.robolectric", name = "robolectric", version.ref = "robolectric" }
 roborazzi = { group = "io.github.takahirom.roborazzi", name = "roborazzi", version.ref = "roborazzi" }
 room-compiler = { group = "androidx.room", name = "room-compiler", version.ref = "room" }