Initial commit: Pezkuwi Wallet Android

Security hardened release:
- Code obfuscation enabled (minifyEnabled=true, shrinkResources=true)
- Sensitive files excluded (google-services.json, keystores)
- Branch.io key moved to BuildConfig placeholder
- Updated dependencies: OkHttp 4.12.0, Gson 2.10.1, BouncyCastle 1.77
- Comprehensive ProGuard rules for crypto wallet
- Navigation 2.7.7, Lifecycle 2.7.0, ConstraintLayout 2.1.4

feature-versions-impl/.gitignore

@@ -0,0 +1 @@
+/build

feature-versions-impl/build.gradle

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+apply plugin: 'kotlin-parcelize'
+apply from: '../tests.gradle'
+apply from: '../scripts/secrets.gradle'
+
+android {
+
+    defaultConfig {
+
+        buildConfigField "String", "NOTIFICATIONS_URL", "\"https://raw.githubusercontent.com/pezkuwichain/pezkuwi-wallet-android-releases/master/updates/v1/entrypoint_dev.json\""
+        buildConfigField "String", "NOTIFICATION_DETAILS_URL", "\"https://raw.githubusercontent.com/pezkuwichain/pezkuwi-wallet-android-releases/master/updates/changelogs/dev/\""
+
+
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+
+            buildConfigField "String", "NOTIFICATIONS_URL", "\"https://raw.githubusercontent.com/pezkuwichain/pezkuwi-wallet-android-releases/master/updates/v1/entrypoint_release.json\""
+            buildConfigField "String", "NOTIFICATION_DETAILS_URL", "\"https://raw.githubusercontent.com/pezkuwichain/pezkuwi-wallet-android-releases/master/updates/changelogs/release/\""
+        }
+    }
+    namespace 'io.novafoundation.nova.feature_versions_impl'
+
+    buildFeatures {
+        viewBinding true
+    }
+}
+
+dependencies {
+    implementation project(':common')
+    implementation project(':feature-versions-api')
+
+    implementation kotlinDep
+
+    implementation androidDep
+    implementation materialDep
+    implementation constraintDep
+
+    implementation coroutinesDep
+    implementation coroutinesAndroidDep
+    implementation viewModelKtxDep
+    implementation liveDataKtxDep
+    implementation lifeCycleKtxDep
+
+    implementation markwonDep
+
+    implementation daggerDep
+    ksp daggerCompiler
+
+    implementation retrofitDep
+
+    implementation lifecycleDep
+    ksp lifecycleCompiler
+
+    testImplementation project(":test-shared")
+}

feature-versions-impl/proguard-rules.pro

@@ -0,0 +1,21 @@
+# 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

feature-versions-impl/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest />

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/data/VersionMapper.kt

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+package io.novafoundation.nova.feature_versions_impl.data
+
+import io.novafoundation.nova.common.utils.formatting.parseDateISO_8601_NoMs
+import io.novafoundation.nova.feature_versions_api.domain.Severity
+import io.novafoundation.nova.feature_versions_api.domain.UpdateNotification
+import io.novafoundation.nova.feature_versions_api.domain.Version
+
+const val REMOTE_SEVERITY_CRITICAL = "Critical"
+const val REMOTE_SEVERITY_MAJOR = "Major"
+const val REMOTE_SEVERITY_NORMAL = "Normal"
+
+fun mapFromRemoteVersion(version: Version, versionResponse: VersionResponse, changelog: String?): UpdateNotification {
+    return UpdateNotification(
+        version,
+        changelog,
+        mapSeverity(versionResponse.severity),
+        parseDateISO_8601_NoMs(versionResponse.time)!!
+    )
+}
+
+fun mapSeverity(severity: String): Severity {
+    return when (severity) {
+        REMOTE_SEVERITY_CRITICAL -> Severity.CRITICAL
+        REMOTE_SEVERITY_MAJOR -> Severity.MAJOR
+        else -> Severity.NORMAL
+    }
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/data/VersionRepository.kt

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+package io.novafoundation.nova.feature_versions_impl.data
+
+import io.novafoundation.nova.common.data.storage.Preferences
+import io.novafoundation.nova.common.resources.AppVersionProvider
+import io.novafoundation.nova.feature_versions_api.domain.UpdateNotification
+import io.novafoundation.nova.feature_versions_api.domain.Version
+import io.novafoundation.nova.feature_versions_api.domain.toUnderscoreString
+import kotlinx.coroutines.Deferred
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.async
+import kotlinx.coroutines.awaitAll
+import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+
+interface VersionRepository {
+    suspend fun hasImportantUpdates(): Boolean
+
+    suspend fun getNewUpdateNotifications(): List<UpdateNotification>
+
+    suspend fun skipCurrentUpdates()
+
+    fun inAppUpdatesCheckAllowedFlow(): Flow<Boolean>
+
+    fun allowUpdate()
+
+    suspend fun loadVersions()
+}
+
+class RealVersionRepository(
+    private val appVersionProvider: AppVersionProvider,
+    private val preferences: Preferences,
+    private val versionsFetcher: VersionsFetcher
+) : VersionRepository {
+
+    companion object {
+        private const val PREF_VERSION_CHECKPOINT = "PREF_VERSION_CHECKPOINT"
+    }
+
+    private val mutex = Mutex(false)
+
+    private val appVersion = getAppVersion()
+
+    private var versions = mapOf<Version, VersionResponse>()
+
+    private val _inAppUpdatesCheckAllowed = MutableStateFlow(false)
+
+    override fun allowUpdate() {
+        _inAppUpdatesCheckAllowed.value = true
+    }
+
+    override suspend fun loadVersions() {
+        syncAndGetVersions()
+    }
+
+    override suspend fun hasImportantUpdates(): Boolean {
+        val lastSkippedVersion = getRecentVersionCheckpoint()
+
+        return syncAndGetVersions().any { it.shouldPresentUpdate(appVersion, lastSkippedVersion) }
+    }
+
+    private fun Map.Entry<Version, VersionResponse>.shouldPresentUpdate(
+        appVersion: Version,
+        latestSkippedVersion: Version?,
+    ): Boolean {
+        val (updateVersion, updateInfo) = this
+
+        val alreadyUpdated = appVersion >= updateVersion
+        if (alreadyUpdated) return false
+
+        val notImportantUpdate = updateInfo.severity == REMOTE_SEVERITY_NORMAL
+        if (notImportantUpdate) return false
+
+        val hasSkippedThisUpdate = latestSkippedVersion != null && latestSkippedVersion >= updateVersion
+        val canBypassSkip = updateInfo.severity == REMOTE_SEVERITY_CRITICAL
+
+        if (hasSkippedThisUpdate && !canBypassSkip) return false
+
+        return true
+    }
+
+    override suspend fun getNewUpdateNotifications(): List<UpdateNotification> {
+        return syncAndGetVersions()
+            .filter { appVersion < it.key }
+            .map { getChangelogAsync(it.key, it.value) }
+            .awaitAll()
+            .filterNotNull()
+    }
+
+    override suspend fun skipCurrentUpdates() {
+        val latestUpdateNotification = syncAndGetVersions()
+            .maxWith { first, second -> first.key.compareTo(second.key) }
+        preferences.putString(PREF_VERSION_CHECKPOINT, latestUpdateNotification.key.toString())
+    }
+
+    override fun inAppUpdatesCheckAllowedFlow(): Flow<Boolean> {
+        return _inAppUpdatesCheckAllowed
+    }
+
+    private fun getRecentVersionCheckpoint(): Version? {
+        val checkpointVersion = preferences.getString(PREF_VERSION_CHECKPOINT)
+        return checkpointVersion?.toVersion()
+    }
+
+    private suspend fun getChangelogAsync(version: Version, versionResponse: VersionResponse): Deferred<UpdateNotification?> {
+        return coroutineScope {
+            async(Dispatchers.Default) {
+                val versionFileName = version.toUnderscoreString()
+                val changelog = runCatching { versionsFetcher.getChangelog(versionFileName) }.getOrNull()
+                mapFromRemoteVersion(version, versionResponse, changelog)
+            }
+        }
+    }
+
+    private suspend fun syncAndGetVersions(): Map<Version, VersionResponse> {
+        return mutex.withLock {
+            if (versions.isEmpty()) {
+                versions = runCatching { fetchVersions() }
+                    .getOrElse { emptyMap() }
+            }
+            versions
+        }
+    }
+
+    private suspend fun fetchVersions(): Map<Version, VersionResponse> {
+        return versionsFetcher.getVersions()
+            .associateBy { it.version.toVersion() }
+    }
+
+    @Suppress("DEPRECATION")
+    private fun getAppVersion(): Version {
+        return appVersionProvider.versionName.toVersion()
+    }
+
+    private fun String.toVersion(): Version {
+        val cleanedVersion = replace("[^\\d.]".toRegex(), "")
+        val (major, minor, patch) = cleanedVersion.split(".")
+            .map { it.toLong() }
+        return Version(major, minor, patch)
+    }
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/data/VersionsFetcher.kt

@@ -0,0 +1,14 @@
+package io.novafoundation.nova.feature_versions_impl.data
+
+import io.novafoundation.nova.feature_versions_impl.BuildConfig
+import retrofit2.http.GET
+import retrofit2.http.Path
+
+interface VersionsFetcher {
+
+    @GET(BuildConfig.NOTIFICATIONS_URL)
+    suspend fun getVersions(): List<VersionResponse>
+
+    @GET(BuildConfig.NOTIFICATION_DETAILS_URL + "{version}.md")
+    suspend fun getChangelog(@Path("version") version: String): String
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/data/VersionsResponse.kt

@@ -0,0 +1,7 @@
+package io.novafoundation.nova.feature_versions_impl.data
+
+class VersionResponse(
+    val version: String,
+    val severity: String,
+    val time: String
+)

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/di/VersionsFeatureComponent.kt

@@ -0,0 +1,39 @@
+package io.novafoundation.nova.feature_versions_impl.di
+
+import dagger.BindsInstance
+import dagger.Component
+import io.novafoundation.nova.common.di.CommonApi
+import io.novafoundation.nova.common.di.scope.FeatureScope
+import io.novafoundation.nova.feature_versions_api.di.VersionsFeatureApi
+import io.novafoundation.nova.feature_versions_api.presentation.VersionsRouter
+import io.novafoundation.nova.feature_versions_impl.presentation.update.di.UpdateNotificationsComponent
+
+@Component(
+    dependencies = [
+        VersionsFeatureDependencies::class
+    ],
+    modules = [
+        VersionsFeatureModule::class
+    ]
+)
+@FeatureScope
+interface VersionsFeatureComponent : VersionsFeatureApi {
+
+    fun updateNotificationsFragmentComponentFactory(): UpdateNotificationsComponent.Factory
+
+    @Component.Factory
+    interface Factory {
+
+        fun create(
+            @BindsInstance router: VersionsRouter,
+            deps: VersionsFeatureDependencies
+        ): VersionsFeatureComponent
+    }
+
+    @Component(
+        dependencies = [
+            CommonApi::class
+        ]
+    )
+    interface StakingFeatureDependenciesComponent : VersionsFeatureDependencies
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/di/VersionsFeatureDependencies.kt

@@ -0,0 +1,23 @@
+package io.novafoundation.nova.feature_versions_impl.di
+
+import android.content.Context
+import coil.ImageLoader
+import io.novafoundation.nova.common.data.network.NetworkApiCreator
+import io.novafoundation.nova.common.data.storage.Preferences
+import io.novafoundation.nova.common.resources.AppVersionProvider
+import io.novafoundation.nova.common.resources.ResourceManager
+
+interface VersionsFeatureDependencies {
+
+    fun resourceManager(): ResourceManager
+
+    fun networkApiCreator(): NetworkApiCreator
+
+    fun imageLoader(): ImageLoader
+
+    fun preferences(): Preferences
+
+    fun context(): Context
+
+    fun appVersionProvider(): AppVersionProvider
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/di/VersionsFeatureHolder.kt

@@ -0,0 +1,26 @@
+package io.novafoundation.nova.feature_versions_impl.di
+
+import io.novafoundation.nova.common.di.FeatureApiHolder
+import io.novafoundation.nova.common.di.FeatureContainer
+import io.novafoundation.nova.common.di.scope.ApplicationScope
+import io.novafoundation.nova.feature_versions_api.presentation.VersionsRouter
+import javax.inject.Inject
+
+@ApplicationScope
+class VersionsFeatureHolder @Inject constructor(
+    featureContainer: FeatureContainer,
+    private val router: VersionsRouter
+) : FeatureApiHolder(featureContainer) {
+
+    override fun initializeDependencies(): Any {
+        val dependencies = DaggerVersionsFeatureComponent_StakingFeatureDependenciesComponent.builder()
+            .commonApi(commonApi())
+            .build()
+
+        return DaggerVersionsFeatureComponent.factory()
+            .create(
+                router = router,
+                deps = dependencies
+            )
+    }
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/di/VersionsFeatureModule.kt

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+package io.novafoundation.nova.feature_versions_impl.di
+
+import dagger.Module
+import dagger.Provides
+import io.novafoundation.nova.common.data.network.NetworkApiCreator
+import io.novafoundation.nova.common.data.storage.Preferences
+import io.novafoundation.nova.common.di.scope.FeatureScope
+import io.novafoundation.nova.common.resources.AppVersionProvider
+import io.novafoundation.nova.feature_versions_api.domain.UpdateNotificationsInteractor
+import io.novafoundation.nova.feature_versions_impl.data.RealVersionRepository
+import io.novafoundation.nova.feature_versions_impl.data.VersionRepository
+import io.novafoundation.nova.feature_versions_impl.data.VersionsFetcher
+import io.novafoundation.nova.feature_versions_impl.domain.RealUpdateNotificationsInteractor
+
+@Module
+class VersionsFeatureModule {
+
+    @Provides
+    fun provideVersionsFetcher(
+        networkApiCreator: NetworkApiCreator,
+    ) = networkApiCreator.create(VersionsFetcher::class.java)
+
+    @Provides
+    fun provideVersionService(
+        appVersionProvider: AppVersionProvider,
+        preferences: Preferences,
+        versionsFetcher: VersionsFetcher
+    ): VersionRepository = RealVersionRepository(appVersionProvider, preferences, versionsFetcher)
+
+    @Provides
+    @FeatureScope
+    fun provideUpdateNotificationsInteractor(
+        versionRepository: VersionRepository
+    ): UpdateNotificationsInteractor = RealUpdateNotificationsInteractor(versionRepository)
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/domain/UpdateNotificationsInteractor.kt

@@ -0,0 +1,36 @@
+package io.novafoundation.nova.feature_versions_impl.domain
+
+import io.novafoundation.nova.feature_versions_api.domain.UpdateNotification
+import io.novafoundation.nova.feature_versions_api.domain.UpdateNotificationsInteractor
+import io.novafoundation.nova.feature_versions_impl.data.VersionRepository
+import kotlinx.coroutines.flow.first
+
+class RealUpdateNotificationsInteractor(
+    private val versionRepository: VersionRepository
+) : UpdateNotificationsInteractor {
+
+    override suspend fun loadVersions() {
+        versionRepository.loadVersions()
+    }
+
+    override suspend fun waitPermissionToUpdate() {
+        versionRepository.inAppUpdatesCheckAllowedFlow().first { allowed -> allowed }
+    }
+
+    override fun allowInAppUpdateCheck() {
+        versionRepository.allowUpdate()
+    }
+
+    override suspend fun hasImportantUpdates(): Boolean {
+        return versionRepository.hasImportantUpdates()
+    }
+
+    override suspend fun getUpdateNotifications(): List<UpdateNotification> {
+        return versionRepository.getNewUpdateNotifications()
+            .sortedByDescending { it.version }
+    }
+
+    override suspend fun skipNewUpdates() {
+        versionRepository.skipCurrentUpdates()
+    }
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/presentation/update/UpdateNotificationFragment.kt

@@ -0,0 +1,63 @@
+package io.novafoundation.nova.feature_versions_impl.presentation.update
+
+import androidx.core.view.isGone
+import androidx.core.view.isVisible
+import androidx.recyclerview.widget.ConcatAdapter
+import io.novafoundation.nova.common.base.BaseFragment
+import io.novafoundation.nova.common.di.FeatureUtils
+import io.novafoundation.nova.common.presentation.LoadingState
+import io.novafoundation.nova.feature_versions_api.di.VersionsFeatureApi
+import io.novafoundation.nova.feature_versions_impl.databinding.FragmentUpdateNotificationsBinding
+import io.novafoundation.nova.feature_versions_impl.di.VersionsFeatureComponent
+import io.novafoundation.nova.feature_versions_impl.presentation.update.adapters.UpdateNotificationsAdapter
+import io.novafoundation.nova.feature_versions_impl.presentation.update.adapters.UpdateNotificationsBannerAdapter
+import io.novafoundation.nova.feature_versions_impl.presentation.update.adapters.UpdateNotificationsSeeAllAdapter
+
+class UpdateNotificationFragment :
+    BaseFragment<UpdateNotificationViewModel, FragmentUpdateNotificationsBinding>(),
+    UpdateNotificationsSeeAllAdapter.SeeAllClickedListener {
+
+    override fun createBinding() = FragmentUpdateNotificationsBinding.inflate(layoutInflater)
+
+    private val bannerAdapter = UpdateNotificationsBannerAdapter()
+    private val listAdapter = UpdateNotificationsAdapter()
+    private val seeAllAdapter = UpdateNotificationsSeeAllAdapter(this)
+    private val adapter = ConcatAdapter(bannerAdapter, listAdapter, seeAllAdapter)
+
+    override fun initViews() {
+        binder.updatesList.adapter = adapter
+        val decoration = UpdateNotificationsItemDecoration(requireContext())
+        binder.updatesList.addItemDecoration(decoration)
+        binder.updatesToolbar.setRightActionClickListener { viewModel.skipClicked() }
+        binder.updatesApply.setOnClickListener { viewModel.installUpdateClicked() }
+    }
+
+    override fun inject() {
+        FeatureUtils.getFeature<VersionsFeatureComponent>(this, VersionsFeatureApi::class.java)
+            .updateNotificationsFragmentComponentFactory()
+            .create(this)
+            .inject(this)
+    }
+
+    override fun subscribe(viewModel: UpdateNotificationViewModel) {
+        viewModel.bannerModel.observe {
+            bannerAdapter.setModel(it)
+        }
+
+        viewModel.notificationModels.observe {
+            binder.updateNotificationsProgress.isVisible = it is LoadingState.Loading
+            binder.updatesList.isGone = it is LoadingState.Loading
+            if (it is LoadingState.Loaded) {
+                listAdapter.submitList(it.data)
+            }
+        }
+
+        viewModel.seeAllButtonVisible.observe {
+            seeAllAdapter.showButton(it)
+        }
+    }
+
+    override fun onSeeAllClicked() {
+        viewModel.showAllNotifications()
+    }
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/presentation/update/UpdateNotificationModel.kt

@@ -0,0 +1,23 @@
+package io.novafoundation.nova.feature_versions_impl.presentation.update
+
+import androidx.annotation.ColorRes
+import androidx.annotation.DrawableRes
+
+class UpdateNotificationBannerModel(
+    @DrawableRes val iconRes: Int,
+    @DrawableRes val backgroundRes: Int,
+    val title: String,
+    val message: String
+)
+
+class UpdateNotificationModel(
+    val version: String,
+    val changelog: String,
+    val isLatestUpdate: Boolean,
+    val severity: String?,
+    @ColorRes val severityColorRes: Int?,
+    @ColorRes val severityBackgroundRes: Int?,
+    val date: String
+)
+
+class SeeAllButtonModel

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/presentation/update/UpdateNotificationViewModel.kt

@@ -0,0 +1,134 @@
+package io.novafoundation.nova.feature_versions_impl.presentation.update
+
+import io.noties.markwon.Markwon
+import io.novafoundation.nova.common.base.BaseViewModel
+import io.novafoundation.nova.common.resources.ResourceManager
+import io.novafoundation.nova.common.utils.flowOf
+import io.novafoundation.nova.common.utils.formatting.formatDateSinceEpoch
+import io.novafoundation.nova.common.utils.withLoading
+import io.novafoundation.nova.feature_versions_api.domain.Severity
+import io.novafoundation.nova.feature_versions_api.domain.UpdateNotification
+import io.novafoundation.nova.feature_versions_api.domain.UpdateNotificationsInteractor
+import io.novafoundation.nova.feature_versions_api.presentation.VersionsRouter
+import io.novafoundation.nova.feature_versions_impl.R
+import io.novafoundation.nova.feature_versions_impl.presentation.update.models.UpdateNotificationBannerModel
+import io.novafoundation.nova.feature_versions_impl.presentation.update.models.UpdateNotificationModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.launch
+
+class UpdateNotificationViewModel(
+    private val router: VersionsRouter,
+    private val interactor: UpdateNotificationsInteractor,
+    private val resourceManager: ResourceManager,
+    private val markwon: Markwon,
+) : BaseViewModel() {
+
+    private val showAllNotifications = MutableStateFlow(false)
+
+    private val notifications = flowOf { interactor.getUpdateNotifications() }
+
+    val bannerModel = notifications.map { getBannerOrNull(it) }
+        .shareInBackground()
+
+    val notificationModels = combine(showAllNotifications, notifications) { shouldShowAll, notifications ->
+        val result = if (shouldShowAll) {
+            notifications
+        } else {
+            notifications.take(1)
+        }
+        mapUpdateNotificationsToModels(result)
+    }
+        .withLoading()
+        .shareInBackground()
+
+    val seeAllButtonVisible = combine(showAllNotifications, notifications) { shouldShowAll, notifications ->
+        notifications.size > 1 && !shouldShowAll
+    }
+        .shareInBackground()
+
+    fun skipClicked() = launch {
+        interactor.skipNewUpdates()
+        router.closeUpdateNotifications()
+    }
+
+    fun installUpdateClicked() {
+        router.closeUpdateNotifications()
+        router.openAppUpdater()
+    }
+
+    fun showAllNotifications() {
+        showAllNotifications.value = true
+    }
+
+    private fun hasCriticalUpdates(list: List<UpdateNotification>): Boolean {
+        return list.any {
+            it.severity == Severity.CRITICAL
+        }
+    }
+
+    private fun hasMajorUpdates(list: List<UpdateNotification>): Boolean {
+        return list.any {
+            it.severity == Severity.MAJOR
+        }
+    }
+
+    private fun mapUpdateNotificationsToModels(list: List<UpdateNotification>): List<UpdateNotificationModel> {
+        return list.mapIndexed { index, version ->
+            UpdateNotificationModel(
+                version = version.version.toString(),
+                changelog = version.changelog?.let { markwon.toMarkdown(it) },
+                isLatestUpdate = index == 0,
+                severity = mapSeverity(version.severity),
+                severityColorRes = mapSeverityColor(version.severity),
+                severityBackgroundRes = mapSeverityBackground(version.severity),
+                date = version.time.formatDateSinceEpoch(resourceManager)
+            )
+        }
+    }
+
+    private fun mapSeverity(severity: Severity): String? {
+        return when (severity) {
+            Severity.CRITICAL -> resourceManager.getString(R.string.update_notifications_severity_critical)
+            Severity.MAJOR -> resourceManager.getString(R.string.update_notifications_severity_major)
+            Severity.NORMAL -> null
+        }
+    }
+
+    private fun mapSeverityColor(severity: Severity): Int? {
+        return when (severity) {
+            Severity.CRITICAL -> R.color.critical_update_chip_text
+            Severity.MAJOR -> R.color.major_update_chip_text
+            Severity.NORMAL -> null
+        }
+    }
+
+    private fun mapSeverityBackground(severity: Severity): Int? {
+        return when (severity) {
+            Severity.CRITICAL -> R.color.critical_update_chip_background
+            Severity.MAJOR -> R.color.major_update_chip_background
+            Severity.NORMAL -> null
+        }
+    }
+
+    private fun getBannerOrNull(notifications: List<UpdateNotification>): UpdateNotificationBannerModel? {
+        if (hasCriticalUpdates(notifications)) {
+            return UpdateNotificationBannerModel(
+                R.drawable.ic_critical_update,
+                R.drawable.ic_banner_yellow_gradient,
+                resourceManager.getString(R.string.update_notifications_critical_update_alert_titile),
+                resourceManager.getString(R.string.update_notifications_critical_update_alert_subtitile)
+            )
+        } else if (hasMajorUpdates(notifications)) {
+            return UpdateNotificationBannerModel(
+                R.drawable.ic_major_update,
+                R.drawable.ic_banner_turquoise_gradient,
+                resourceManager.getString(R.string.update_notifications_major_update_alert_titile),
+                resourceManager.getString(R.string.update_notifications_major_update_alert_subtitile)
+            )
+        }
+
+        return null
+    }
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/presentation/update/UpdateNotificationsAdapter.kt

@@ -0,0 +1,108 @@
+package io.novafoundation.nova.feature_versions_impl.presentation.update
+
+import android.view.ViewGroup
+import androidx.core.view.isGone
+import androidx.core.view.isVisible
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.ListAdapter
+import androidx.recyclerview.widget.RecyclerView.ViewHolder
+import io.novafoundation.nova.common.list.GroupedListHolder
+import io.novafoundation.nova.common.utils.inflater
+import io.novafoundation.nova.common.utils.setTextColorRes
+import io.novafoundation.nova.common.view.shape.getRoundedCornerDrawable
+import io.novafoundation.nova.feature_versions_impl.R
+import io.novafoundation.nova.feature_versions_impl.databinding.ItemUpdateNotificationBinding
+import io.novafoundation.nova.feature_versions_impl.databinding.ItemUpdateNotificationHeaderBinding
+import io.novafoundation.nova.feature_versions_impl.databinding.ItemUpdateNotificationSeeAllBinding
+
+class UpdateNotificationsAdapter(private val seeAllClickedListener: SeeAllClickedListener) : ListAdapter<Any, ViewHolder>(
+    DiffCallback
+) {
+
+    interface SeeAllClickedListener {
+        fun onSeeAllClicked()
+    }
+
+    companion object {
+        private const val TYPE_HEADER = 0
+        private const val TYPE_VERSION = 1
+        private const val TYPE_SEE_ALL = 2
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        return when (viewType) {
+            TYPE_HEADER -> UpdateNotificationBannerHolder(ItemUpdateNotificationHeaderBinding.inflate(parent.inflater(), parent, false))
+            TYPE_VERSION -> UpdateNotificationHolder(ItemUpdateNotificationBinding.inflate(parent.inflater(), parent, false))
+            TYPE_SEE_ALL -> SeeAllButtonHolder(ItemUpdateNotificationSeeAllBinding.inflate(parent.inflater(), parent, false), seeAllClickedListener)
+            else -> throw IllegalStateException()
+        }
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        val item = getItem(position)
+        when (holder) {
+            is UpdateNotificationBannerHolder -> holder.bind(item as UpdateNotificationBannerModel)
+            is UpdateNotificationHolder -> holder.bind(item as UpdateNotificationModel)
+        }
+    }
+
+    override fun getItemViewType(position: Int): Int {
+        val item = getItem(position)
+        return when (item) {
+            is UpdateNotificationBannerModel -> TYPE_HEADER
+            is UpdateNotificationModel -> TYPE_VERSION
+            is SeeAllButtonModel -> TYPE_SEE_ALL
+            else -> throw IllegalStateException()
+        }
+    }
+}
+
+private object DiffCallback : DiffUtil.ItemCallback<Any>() {
+    override fun areItemsTheSame(oldItem: Any, newItem: Any): Boolean {
+        return true
+    }
+
+    override fun areContentsTheSame(oldItem: Any, newItem: Any): Boolean {
+        return true
+    }
+}
+
+class UpdateNotificationBannerHolder(private val binder: ItemUpdateNotificationHeaderBinding) : GroupedListHolder(binder.root) {
+
+    fun bind(item: UpdateNotificationBannerModel) {
+        binder.itemUpdateNotificationBanner.setImage(item.iconRes)
+        binder.itemUpdateNotificationBanner.setBannerBackground(item.backgroundRes)
+        binder.itemUpdateNotificationAlertTitle.text = item.title
+        binder.itemUpdateNotificationAlertSubtitle.text = item.message
+    }
+}
+
+class UpdateNotificationHolder(private val binder: ItemUpdateNotificationBinding) : GroupedListHolder(binder.root) {
+
+    init {
+        binder.itemNotificationLatest.background = binder.root.context.getRoundedCornerDrawable(R.color.chips_background, cornerSizeInDp = 6)
+    }
+
+    fun bind(item: UpdateNotificationModel) {
+        binder.itemNotificationVersion.text = itemView.context.getString(R.string.update_notification_item_version, item.version)
+        binder.itemNotificationDescription.text = item.changelog
+
+        binder.itemNotificationSeverity.isGone = item.severity == null
+        binder.itemNotificationSeverity.text = item.severity
+        item.severityColorRes?.let { binder.itemNotificationSeverity.setTextColorRes(it) }
+        item.severityBackgroundRes?.let { binder.itemNotificationSeverity.background = itemView.context.getRoundedCornerDrawable(it, cornerSizeInDp = 6) }
+
+        binder.itemNotificationLatest.isVisible = item.isLatestUpdate
+        binder.itemNotificationDate.text = item.date
+    }
+}
+
+class SeeAllButtonHolder(
+    private val binder: ItemUpdateNotificationSeeAllBinding,
+    seeAllClickedListener: UpdateNotificationsAdapter.SeeAllClickedListener
+) : GroupedListHolder(binder.root) {
+
+    init {
+        binder.root.setOnClickListener { seeAllClickedListener.onSeeAllClicked() }
+    }
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/presentation/update/UpdateNotificationsItemDecoration.kt

@@ -0,0 +1,55 @@
+package io.novafoundation.nova.feature_versions_impl.presentation.update
+
+import android.content.Context
+import android.graphics.Canvas
+import android.graphics.Paint
+import android.graphics.Rect
+import android.view.View
+import androidx.core.view.children
+import androidx.recyclerview.widget.RecyclerView
+import io.novafoundation.nova.common.utils.dpF
+import io.novafoundation.nova.feature_versions_impl.R
+import io.novafoundation.nova.feature_versions_impl.presentation.update.adapters.UpdateNotificationHolder
+import kotlin.math.roundToInt
+
+class UpdateNotificationsItemDecoration(
+    val context: Context
+) : RecyclerView.ItemDecoration() {
+
+    private val dividerColor: Int = context.getColor(R.color.divider)
+    private val dividerSize: Float = 1.dpF(context)
+    private val paddingHorizontal: Float = 16.dpF(context)
+    private val dividerOffset = dividerSize / 2
+    private val paint = Paint(Paint.ANTI_ALIAS_FLAG).apply {
+        strokeWidth = dividerSize
+        color = dividerColor
+        style = Paint.Style.STROKE
+    }
+
+    override fun getItemOffsets(outRect: Rect, view: View, parent: RecyclerView, state: RecyclerView.State) {
+        val index = parent.layoutManager!!.getPosition(view)
+        if (!parent.shouldApplyDecoration(parent, index, view)) return
+
+        outRect.set(0, 0, 0, dividerSize.roundToInt())
+    }
+
+    override fun onDraw(canvas: Canvas, parent: RecyclerView, state: RecyclerView.State) {
+        val children = filterItems(parent)
+        children.forEach { view ->
+            val dividerY = view.bottom + dividerOffset
+            canvas.drawLine(paddingHorizontal, dividerY, view.right - paddingHorizontal, dividerY, paint)
+        }
+    }
+
+    private fun filterItems(parent: RecyclerView): List<View> {
+        return parent.children
+            .toList()
+            .filterIndexed { index, view -> parent.shouldApplyDecoration(parent, index, view) }
+    }
+
+    private fun RecyclerView.shouldApplyDecoration(parent: RecyclerView, index: Int, view: View): Boolean {
+        val thisViewHolder = getChildViewHolder(view)
+        val nextViewHolder = getChildAt(index + 1)?.let { getChildViewHolder(it) }
+        return thisViewHolder is UpdateNotificationHolder && nextViewHolder is UpdateNotificationHolder
+    }
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/presentation/update/adapters/UpdateNotificationsAdapter.kt

@@ -0,0 +1,58 @@
+package io.novafoundation.nova.feature_versions_impl.presentation.update.adapters
+
+import android.view.ViewGroup
+import androidx.core.view.isGone
+import androidx.core.view.isVisible
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.ListAdapter
+import io.novafoundation.nova.common.list.GroupedListHolder
+import io.novafoundation.nova.common.utils.inflater
+import io.novafoundation.nova.common.utils.setTextColorRes
+import io.novafoundation.nova.common.view.shape.getRoundedCornerDrawable
+import io.novafoundation.nova.feature_versions_impl.R
+import io.novafoundation.nova.feature_versions_impl.databinding.ItemUpdateNotificationBinding
+import io.novafoundation.nova.feature_versions_impl.presentation.update.models.UpdateNotificationModel
+
+class UpdateNotificationsAdapter : ListAdapter<UpdateNotificationModel, UpdateNotificationHolder>(
+    UpdateNotificationsDiffCallback
+) {
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): UpdateNotificationHolder {
+        return UpdateNotificationHolder(ItemUpdateNotificationBinding.inflate(parent.inflater(), parent, false))
+    }
+
+    override fun onBindViewHolder(holder: UpdateNotificationHolder, position: Int) {
+        holder.bind(getItem(position))
+    }
+}
+
+private object UpdateNotificationsDiffCallback : DiffUtil.ItemCallback<UpdateNotificationModel>() {
+    override fun areItemsTheSame(oldItem: UpdateNotificationModel, newItem: UpdateNotificationModel): Boolean {
+        return oldItem.version == newItem.version
+    }
+
+    override fun areContentsTheSame(oldItem: UpdateNotificationModel, newItem: UpdateNotificationModel): Boolean {
+        return true
+    }
+}
+
+class UpdateNotificationHolder(private val binder: ItemUpdateNotificationBinding) : GroupedListHolder(binder.root) {
+
+    init {
+        binder.itemNotificationLatest.background = binder.root.context.getRoundedCornerDrawable(R.color.chips_background, cornerSizeInDp = 6)
+    }
+
+    fun bind(item: UpdateNotificationModel) {
+        binder.itemNotificationVersion.text = itemView.context.getString(R.string.update_notification_item_version, item.version)
+        binder.itemNotificationDescription.text = item.changelog
+        binder.itemNotificationDescription.isVisible = item.changelog != null
+
+        binder.itemNotificationSeverity.isGone = item.severity == null
+        binder.itemNotificationSeverity.text = item.severity
+        item.severityColorRes?.let { binder.itemNotificationSeverity.setTextColorRes(it) }
+        item.severityBackgroundRes?.let { binder.itemNotificationSeverity.background = itemView.context.getRoundedCornerDrawable(it, cornerSizeInDp = 6) }
+
+        binder.itemNotificationLatest.isVisible = item.isLatestUpdate
+        binder.itemNotificationDate.text = item.date
+    }
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/presentation/update/adapters/UpdateNotificationsBannerAdapter.kt

@@ -0,0 +1,50 @@
+package io.novafoundation.nova.feature_versions_impl.presentation.update.adapters
+
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import io.novafoundation.nova.common.list.GroupedListHolder
+import io.novafoundation.nova.common.utils.inflater
+import io.novafoundation.nova.feature_versions_impl.databinding.ItemUpdateNotificationHeaderBinding
+import io.novafoundation.nova.feature_versions_impl.presentation.update.models.UpdateNotificationBannerModel
+
+class UpdateNotificationsBannerAdapter : RecyclerView.Adapter<UpdateNotificationBannerHolder>() {
+
+    private var bannerModel: UpdateNotificationBannerModel? = null
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): UpdateNotificationBannerHolder {
+        return UpdateNotificationBannerHolder(ItemUpdateNotificationHeaderBinding.inflate(parent.inflater(), parent, false))
+    }
+
+    override fun onBindViewHolder(holder: UpdateNotificationBannerHolder, position: Int) {
+        holder.bind(bannerModel ?: return)
+    }
+
+    override fun getItemCount(): Int {
+        return if (bannerModel != null) 1 else 0
+    }
+
+    fun setModel(model: UpdateNotificationBannerModel?) {
+        val newNotNull = model != null
+        val oldNotNull = bannerModel != null
+
+        bannerModel = model
+
+        if (newNotNull != oldNotNull) {
+            if (newNotNull) {
+                notifyItemInserted(0)
+            } else {
+                notifyItemRemoved(0)
+            }
+        }
+    }
+}
+
+class UpdateNotificationBannerHolder(private val binder: ItemUpdateNotificationHeaderBinding) : GroupedListHolder(binder.root) {
+
+    fun bind(item: UpdateNotificationBannerModel) {
+        binder.itemUpdateNotificationBanner.setImage(item.iconRes)
+        binder.itemUpdateNotificationBanner.setBannerBackground(item.backgroundRes)
+        binder.itemUpdateNotificationAlertTitle.text = item.title
+        binder.itemUpdateNotificationAlertSubtitle.text = item.message
+    }
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/presentation/update/adapters/UpdateNotificationsSeeAllAdapter.kt

@@ -0,0 +1,45 @@
+package io.novafoundation.nova.feature_versions_impl.presentation.update.adapters
+
+import android.view.View
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import io.novafoundation.nova.common.list.GroupedListHolder
+import io.novafoundation.nova.common.utils.inflateChild
+import io.novafoundation.nova.feature_versions_impl.R
+
+class UpdateNotificationsSeeAllAdapter(private val seeAllClickedListener: SeeAllClickedListener) : RecyclerView.Adapter<SeeAllButtonHolder>() {
+
+    interface SeeAllClickedListener {
+        fun onSeeAllClicked()
+    }
+
+    private var showBanner: Boolean = false
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): SeeAllButtonHolder {
+        return SeeAllButtonHolder(parent.inflateChild(R.layout.item_update_notification_see_all), seeAllClickedListener)
+    }
+
+    override fun getItemCount(): Int {
+        return if (showBanner) 1 else 0
+    }
+
+    override fun onBindViewHolder(holder: SeeAllButtonHolder, position: Int) {}
+
+    fun showButton(show: Boolean) {
+        if (showBanner != show) {
+            showBanner = show
+            if (showBanner) {
+                notifyItemInserted(0)
+            } else {
+                notifyItemRemoved(0)
+            }
+        }
+    }
+}
+
+class SeeAllButtonHolder(view: View, seeAllClickedListener: UpdateNotificationsSeeAllAdapter.SeeAllClickedListener) : GroupedListHolder(view) {
+
+    init {
+        view.setOnClickListener { seeAllClickedListener.onSeeAllClicked() }
+    }
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/presentation/update/di/UpdateNotificationsComponent.kt

@@ -0,0 +1,26 @@
+package io.novafoundation.nova.feature_versions_impl.presentation.update.di
+
+import androidx.fragment.app.Fragment
+import dagger.BindsInstance
+import dagger.Subcomponent
+import io.novafoundation.nova.common.di.scope.ScreenScope
+import io.novafoundation.nova.feature_versions_impl.presentation.update.UpdateNotificationFragment
+
+@Subcomponent(
+    modules = [
+        UpdateNotificationsModule::class
+    ]
+)
+@ScreenScope
+interface UpdateNotificationsComponent {
+
+    @Subcomponent.Factory
+    interface Factory {
+
+        fun create(
+            @BindsInstance fragment: Fragment
+        ): UpdateNotificationsComponent
+    }
+
+    fun inject(fragment: UpdateNotificationFragment)
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/presentation/update/di/UpdateNotificationsModule.kt

@@ -0,0 +1,40 @@
+package io.novafoundation.nova.feature_versions_impl.presentation.update.di
+
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import dagger.Module
+import dagger.Provides
+import dagger.multibindings.IntoMap
+import io.noties.markwon.Markwon
+import io.novafoundation.nova.common.di.modules.shared.MarkdownFullModule
+import io.novafoundation.nova.common.di.viewmodel.ViewModelKey
+import io.novafoundation.nova.common.di.viewmodel.ViewModelModule
+import io.novafoundation.nova.common.resources.ResourceManager
+import io.novafoundation.nova.feature_versions_api.domain.UpdateNotificationsInteractor
+import io.novafoundation.nova.feature_versions_api.presentation.VersionsRouter
+import io.novafoundation.nova.feature_versions_impl.presentation.update.UpdateNotificationViewModel
+
+@Module(includes = [ViewModelModule::class, MarkdownFullModule::class])
+class UpdateNotificationsModule {
+
+    @Provides
+    @IntoMap
+    @ViewModelKey(UpdateNotificationViewModel::class)
+    fun provideViewModel(
+        router: VersionsRouter,
+        interactor: UpdateNotificationsInteractor,
+        resourceManager: ResourceManager,
+        markwon: Markwon,
+    ): ViewModel {
+        return UpdateNotificationViewModel(router, interactor, resourceManager, markwon)
+    }
+
+    @Provides
+    fun provideViewModelCreator(
+        fragment: Fragment,
+        viewModelFactory: ViewModelProvider.Factory
+    ): UpdateNotificationViewModel {
+        return ViewModelProvider(fragment, viewModelFactory).get(UpdateNotificationViewModel::class.java)
+    }
+}

feature-versions-impl/src/main/java/io/novafoundation/nova/feature_versions_impl/presentation/update/models/UpdateNotificationModel.kt

@@ -0,0 +1,21 @@
+package io.novafoundation.nova.feature_versions_impl.presentation.update.models
+
+import androidx.annotation.ColorRes
+import androidx.annotation.DrawableRes
+
+class UpdateNotificationBannerModel(
+    @DrawableRes val iconRes: Int,
+    @DrawableRes val backgroundRes: Int,
+    val title: String,
+    val message: String
+)
+
+class UpdateNotificationModel(
+    val version: String,
+    val changelog: CharSequence?,
+    val isLatestUpdate: Boolean,
+    val severity: String?,
+    @ColorRes val severityColorRes: Int?,
+    @ColorRes val severityBackgroundRes: Int?,
+    val date: String
+)

feature-versions-impl/src/main/res/layout/fragment_update_notifications.xml

@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/secondary_screen_background">
+
+    <io.novafoundation.nova.common.view.Toolbar
+        android:id="@+id/updatesToolbar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:dividerVisible="false"
+        app:homeButtonVisible="false"
+        app:layout_constraintTop_toTopOf="parent"
+        app:textRight="@string/common_skip"
+        app:titleText="@string/update_notification_title" />
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/updatesList"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:clipToPadding="false"
+        android:overScrollMode="never"
+        android:paddingBottom="72dp"
+        app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/updatesToolbar"
+        tools:itemCount="10" />
+
+    <ProgressBar
+        android:id="@+id/updateNotificationsProgress"
+        style="@style/Widget.Nova.ProgressBar.Indeterminate"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:visibility="gone"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.499" />
+
+    <io.novafoundation.nova.common.view.PrimaryButton
+        android:id="@+id/updatesApply"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginHorizontal="16dp"
+        android:layout_marginBottom="24dp"
+        android:text="@string/update_notification_install_btn"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

feature-versions-impl/src/main/res/layout/item_update_notification.xml

@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingTop="16dp"
+    android:paddingBottom="16dp">
+
+    <TextView
+        android:id="@+id/itemNotificationVersion"
+        style="@style/TextAppearance.NovaFoundation.Bold.Title2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginHorizontal="16dp"
+        android:includeFontPadding="false"
+        android:textColor="#fff"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:text="Version 5.0.3" />
+
+    <TextView
+        android:id="@+id/itemNotificationSeverity"
+        style="@style/TextAppearance.NovaFoundation.SemiBold.Caps2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:gravity="center_vertical"
+        android:includeFontPadding="false"
+        android:minHeight="16dp"
+        android:paddingHorizontal="6dp"
+        android:paddingVertical="1dp"
+        android:textColor="@color/chip_text"
+        app:layout_constraintBottom_toBottomOf="@id/itemNotificationVersion"
+        app:layout_constraintStart_toEndOf="@+id/itemNotificationVersion"
+        app:layout_constraintTop_toTopOf="@id/itemNotificationVersion"
+        tools:text="@string/update_notifications_severity_critical" />
+
+    <TextView
+        android:id="@+id/itemNotificationLatest"
+        style="@style/TextAppearance.NovaFoundation.SemiBold.Caps2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:gravity="center_vertical"
+        android:includeFontPadding="false"
+        android:minHeight="16dp"
+        android:paddingHorizontal="6dp"
+        android:paddingVertical="1dp"
+        android:text="@string/update_notifications_latest"
+        android:textColor="@color/chip_text"
+        app:layout_constraintBottom_toBottomOf="@id/itemNotificationVersion"
+        app:layout_constraintStart_toEndOf="@+id/itemNotificationSeverity"
+        app:layout_constraintTop_toTopOf="@id/itemNotificationVersion" />
+
+    <TextView
+        android:id="@+id/itemNotificationDate"
+        style="@style/TextAppearance.NovaFoundation.Regular.Caption1"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginHorizontal="16dp"
+        android:layout_marginTop="4dp"
+        android:textColor="@color/text_secondary"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/itemNotificationVersion"
+        tools:text="Dec 27, 2022" />
+
+    <TextView
+        android:id="@+id/itemNotificationDescription"
+        style="@style/TextAppearance.NovaFoundation.Regular.Footnote"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginHorizontal="16dp"
+        android:layout_marginTop="12dp"
+        android:textColor="@color/text_secondary"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/itemNotificationDate"
+        tools:text="Tokens used in governance can now be used in staking Updated ERC-20 Transaction History screen to display actual transaction fee for transfers Fixed the fee calculation for tokens when a chain's main token is disabled" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

feature-versions-impl/src/main/res/layout/item_update_notification_header.xml

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<io.novafoundation.nova.common.view.BannerView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/itemUpdateNotificationBanner"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_marginHorizontal="16dp"
+    android:layout_marginTop="12dp"
+    tools:bannerBackground="@drawable/ic_banner_gray_gradient">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="16dp"
+        android:layout_marginTop="16dp"
+        android:layout_marginEnd="76dp"
+        android:layout_marginBottom="36dp"
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@+id/itemUpdateNotificationAlertTitle"
+            style="@style/TextAppearance.NovaFoundation.Bold.Title3"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="2dp"
+            android:ellipsize="end"
+            android:includeFontPadding="false"
+            android:textColor="@color/text_primary"
+            tools:text="@string/update_notifications_critical_update_alert_titile" />
+
+        <TextView
+            android:id="@+id/itemUpdateNotificationAlertSubtitle"
+            style="@style/TextAppearance.NovaFoundation.Regular.Caption1"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            android:textColor="@color/text_secondary"
+            tools:text="@string/update_notifications_critical_update_alert_subtitile" />
+
+    </LinearLayout>
+
+</io.novafoundation.nova.common.view.BannerView>

feature-versions-impl/src/main/res/layout/item_update_notification_see_all.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    style="@style/TextAppearance.NovaFoundation.Regular.Footnote"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_marginTop="10dp"
+    android:gravity="center"
+    android:paddingHorizontal="8dp"
+    android:paddingVertical="6dp"
+    android:text="@string/update_notifications_show_more"
+    android:textColor="@color/button_text_accent" />

feature-versions-impl/src/test/java/io/novafoundation/nova/feature_versions_impl/data/RealVersionRepositoryTest.kt

@@ -0,0 +1,131 @@
+package io.novafoundation.nova.feature_versions_impl.data
+
+import io.novafoundation.nova.common.data.storage.Preferences
+import io.novafoundation.nova.common.resources.AppVersionProvider
+import io.novafoundation.nova.test_shared.any
+import io.novafoundation.nova.test_shared.whenever
+import junit.framework.Assert.assertEquals
+import kotlinx.coroutines.runBlocking
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mockito
+import org.mockito.junit.MockitoJUnitRunner
+
+@RunWith(MockitoJUnitRunner::class)
+internal class RealVersionRepositoryTest {
+
+    @Test
+    fun `should not show updates if app is updated`() = runBlocking {
+        runHasImportantUpdatesTest(
+            appVersion = "1.2.0",
+            updates = listOf(critical("1.2.0")),
+            latestSkippedVersion = null,
+            isImportant = false
+        )
+
+        runHasImportantUpdatesTest(
+            appVersion = "1.2.0",
+            updates = listOf(normal("1.2.0")),
+            latestSkippedVersion = null,
+            isImportant = false
+        )
+
+        runHasImportantUpdatesTest(
+            appVersion = "1.2.0",
+            updates = listOf(critical("1.1.0"), major("1.2.0")),
+            latestSkippedVersion = null,
+            isImportant = false
+        )
+    }
+
+    @Test
+    fun `should not show updates if there are no updates`() = runBlocking {
+        runHasImportantUpdatesTest(
+            appVersion = "1.2.0",
+            updates = emptyList(),
+            latestSkippedVersion = null,
+            isImportant = false
+        )
+    }
+
+    @Test
+    fun `should show updates if there is a critical update`() = runBlocking {
+        runHasImportantUpdatesTest(
+            appVersion = "1.0.0",
+            updates = listOf(critical("1.1.0")),
+            latestSkippedVersion = null,
+            isImportant = true
+        )
+
+        // even if it is skipped
+        runHasImportantUpdatesTest(
+            appVersion = "1.0.0",
+            updates = listOf(critical("1.1.0")),
+            latestSkippedVersion = "1.1.0",
+            isImportant = true
+        )
+    }
+
+    @Test
+    fun `should not show updates if there is only a normal update`() = runBlocking {
+        runHasImportantUpdatesTest(
+            appVersion = "1.0.0",
+            updates = listOf(normal("1.0.1")),
+            latestSkippedVersion = null,
+            isImportant = false
+        )
+    }
+
+    @Test
+    fun `should not show updates if major update was skipped`() = runBlocking {
+        runHasImportantUpdatesTest(
+            appVersion = "1.0.0",
+            updates = listOf(major("1.1.0")),
+            latestSkippedVersion = "1.1.0",
+            isImportant = false
+        )
+    }
+
+    @Test
+    fun `should not show updates if critical update is installed and others are skipped major`() = runBlocking {
+        runHasImportantUpdatesTest(
+            appVersion = "1.1.0",
+            updates = listOf(critical("1.1.0"), major("1.2.0")),
+            latestSkippedVersion = "1.2.0",
+            isImportant = false
+        )
+    }
+
+
+    private suspend fun runHasImportantUpdatesTest(
+        appVersion: String,
+        updates: List<Pair<String, String>>, // [(version, priority)]
+        latestSkippedVersion: String?,
+        isImportant: Boolean
+    ) {
+        val preferences = Mockito.mock(Preferences::class.java).also {
+            whenever(it.getString(any())).thenReturn(latestSkippedVersion)
+        }
+
+        val versionResponses = updates.map { (version, severity) -> VersionResponse(version, severity, "2022-12-22T06:46:07Z") }
+        val fetcher = Mockito.mock(VersionsFetcher::class.java).also {
+            whenever(it.getVersions()).thenReturn(versionResponses)
+        }
+
+        val appVersionProvider = Mockito.mock(AppVersionProvider::class.java).also {
+            whenever(it.versionName).thenReturn(appVersion)
+        }
+
+        val repository = RealVersionRepository(appVersionProvider, preferences, fetcher)
+
+        val actualIsImportant = repository.hasImportantUpdates()
+
+        assertEquals(isImportant, actualIsImportant)
+    }
+
+    private fun critical(version: String) = version to REMOTE_SEVERITY_CRITICAL
+
+    private fun normal(version: String) = version to REMOTE_SEVERITY_NORMAL
+
+    private fun major(version: String) = version to REMOTE_SEVERITY_MAJOR
+}