---
title: "Mapp Engage: Android and iOS SDK 6.1.0 Release"
slug: "mapp-engage-android-sdk-610-release"
updated: 2025-10-06T09:54:57Z
published: 2025-10-07T07:33:54Z
canonical: "docs.mapp.com/mapp-engage-android-sdk-610-release"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mapp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Mapp Engage: Android and iOS SDK 6.1.0 Release

**6 October 2025** We’ve added bulk custom attribute updates and an alias method with an option to resend previously set attributes on both Android and iOS.

## What’s new?

### Android

- **Bulk attribute update:** `setAttributes(Map<String, Object> attributes)` lets you update multiple custom attributes in a single call.
- **Alias with resend option:** `setAlias(String alias, boolean resendAttributes)` adds an overload to control attribute resyncs. When you provide a new alias and set `resendAttributes` to `true`, the SDK re-syncs all previously set custom attributes with the backend.

### iOS

- **Bulk attribute update:** `setCustomAttributes(NSDictionary *attributes, AppoxeeCompletionHandler handler)` updates multiple custom attributes in a single call.
- **Alias with resend option:** `setDeviceAlias(NSString *alias, BOOL resendAttributes, AppoxeeCompletionHandler handler)` lets you control attribute resyncs.
- **Automatic resync behavior:** When a new alias value is provided and `resendAttributes` is set to `YES`, the SDK re-syncs all previously set custom attributes with the backend.

#### Package Managers

- CocoaPods
- Swift Package Manager (SPM)

Please see the changelogs for more information:

[Android SDK Changelog](/v1/docs/changelog-engage-android-sdk)

[iOS SDK Changelog](/v1/docs/changelog-engage-ios-sdk)

## Availability

This update was rolled out on 6 October 2025. Please update to the latest version to access these changes.

## Related

- [Developer Guide](/android-v6-api-guide.md)
- [Custom Attributes](/mapp-engage-ios-sdk-custom-attributes.md)
- [Set User Identifier](/mapp-engage-ios-sdk-set-user-identifier.md)