# Product Release Notes March 2023 - Smarter Codes, Better Emails, and Idempotent Purchases

* 🌐 **\[General]**

  • New locales added for broader language support.
* 🚗 **\[Calculations – ACRISS]**

  • Support for **SIPP codes** in the ACRISS methodology.
* ✈️ **\[Calculations – Flights]**

  • Added `booking_class` resolution for flight methodologies.

  • IATA codes now supported by M\&M. 🎉
* 📧 **\[V2 Purchases]**

  • Clients now receive **confirmation emails** after successful v2 purchases.

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**📈 Improvements**

* 🛒 **\[Purchases]**

  • `/purchase` request is now fully **idempotent** — prevents accidental duplicate charges or records.
* 📩 **\[Client Notifications]**

  • All users related to a client are now emailed when a project is retired.
* 🌍 **\[Translations]**

  • Updated language translations.
* 🛠 **\[General]**

  • Better input validations across endpoints.

  • Removed unused `valid_until` field from responses.