# Release History source: https://developer.mastercard.com/carbon-calculator/documentation/release-history/index.md This page contains a history of features implemented into the Carbon Calculator API service since 2021. Details of changes based on each release are mentioned in the table. | Release Dates | Release Version | Description | |----------------|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | November 2025 | v12.0 | * Introduced new [Payment cards - Profiles](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/payment_cards_profiles/index.md) to store climate profile of the user with payment card. | | September 2025 | v11.0 | * Payment Cards Enrollments API -- Removed and no longer supported. | | January 2025 | v10.0 | * Introduced new [Personas](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/engagement-services/personas/index.md) and [Comparisons](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/engagement-services/comparisons/index.md) APIs for Engagement Services in Carbon Calculator. | | September 2024 | v9.0 | * Introduced a new API for Engagement Services in Carbon Calculator [Benchmarks](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/engagement-services/benchmarks/index.md). * Added Insights by ID API to the [Insights](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/engagement-services/insights/index.md) engagement service. | | August 2024 | v8.0 | * Introduced new APIs for onboarding the functionality of Engagement Services in Carbon Calculator [Surveys](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/engagement-services/surveys/index.md), [Profiles](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/engagement-services/profiles/index.md), and [Insights](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/engagement-services/insights/index.md). * Enriched [Transaction Footprints Calculation](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/txn_footprint_calculation/index.md) to support profile-based scoring. | | February 2024 | v7.0 | * Introduced POS Bank net reference number, POS Bank net reference date, and TRACE ID in the request payload of the [Transaction Footprints Notification](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/txn_footprint_notification/index.md) and the response of [View Historical Transaction Footprints](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/historical_txn_footprint/index.md). * Added support for non-card (NC) transactions in the [Transaction Footprints Calculation](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/txn_footprint_calculation/index.md) API. * Introduced a new API [Delete Payment Card](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/delete_payment_cards/index.md) to delete a single payment card. * Existing APIs are marked as to be deprecated. * [Delete Payment Cards (to be deprecated)](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/delete_payment_cards_deprecated/index.md) * Updated URLs for [Aggregate Transaction Footprint](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/aggregate_txn_footprint/index.md) and [Transaction Footprint Notification](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/txn_footprint_notification/index.md) use cases. | | January 2024 | v6.0 | * Enriched [Transaction Footprints Calculation](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/txn_footprint_calculation/index.md) to support AIIA-based calculation. | | August 2023 | v5.0 | * Introduced new API [Add Payment Cards](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/add_payment_card_single_and_bulk/index.md) to register a single and bulk payment card. * Existing APIs are marked as to be deprecated. * Payment Cards Enrollments(to be deprecated) * [Add Payment Cards (to be deprecated)](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/add_payment_card/index.md) | | May 2023 | v4.0 | * Introduced [File Based Scoring Calculation](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/file_based_scoring/index.md) to allow customers to score transactions without any API integration. Customers need to onboard on [Mastercard File Exchange Onboarding Guide](https://trc-techresource.mastercard.com/r/bundle/m_fxusg_en-us/page/d/en-US/pvd1747164178802.html) portal through MC Connect and update their senderId(Customer Logical Name) either through [Update Service Provider Details](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/update_service_provider_details/index.md) or using the [Onboarding form](https://developer.mastercard.com/carbon-calculator/tutorial/sandbox-access/step4/index.md) during sign up. * Enriched [Aggregate Transaction Footprint](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/aggregate_txn_footprint/index.md) to support category-wise aggregation for transactions of enrolled cards. * Enhanced [Add Payment Card](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/add_payment_card/index.md) to improve performance and availability. | | April 2022 | v3.0 | * Removed the yearly aggregation from the [Aggregate Transaction Footprint](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/aggregate_txn_footprint/index.md) use case. * The issuer needs to send the card brand with each transaction in [Transaction Footprints Calculation](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/txn_footprint_calculation/index.md). * Added support to delete a project through Mastercard Developers. | | December 2021 | v2.0 | Introduced new APIs to leverage the capabilities of the Carbon Calculator. * Payment Cards Enrollments * [Delete Payment Cards](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/delete_payment_cards_deprecated/index.md) * [Update Service Provider Details](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/update_service_provider_details/index.md)
Incorporated Customer feedback. | | March 2021 | v1.0 | Launched the Carbon Calculator API to provide visibility into the environmental impact based on the spending habits of consumers. * [Add Payment Card](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/add_payment_card/index.md) * [Transaction Footprints Notification](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/txn_footprint_notification/index.md) * [View Historical Transaction Footprints](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/historical_txn_footprint/index.md) * [View Aggregate Transaction Footprints](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/aggregate_txn_footprint/index.md) * [Transaction Footprints Calculation](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/txn_footprint_calculation/index.md) * [Get Supported Currencies](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/supported_services/index.md) * [Get Supported Merchant Categories](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/supported_services/index.md) * [View Service Provider Details](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/service_provider_details/index.md) | Refer to the [Use cases](https://developer.mastercard.com/carbon-calculator/documentation/use-cases/index.md) section for a functional explanation and the [API Reference](https://developer.mastercard.com/carbon-calculator/documentation/api-reference/index.md) section for technical details of new APIs.