# Product Release Notes January 2023 - New Methodologies, Smarter Accommodation & Ruby 3

* 🏨 **\[Accommodation]**

  • New methodology based on a given **date range**, factoring in **heating seasons** for the specified country and stay period.

  • Existing `number_of_nights` methodology now uses **average heating factors** for more precise calculations.
* 🚆 **\[Train]**

  • New **SQUAKE train methodology** using the `operator_name` parameter for operator-specific emission factors (supported operators documented).
* ✈️ **\[Flights]**

  • Added new flight calculation methodologies: **ADEME**, **DEFRA**, **US EPA** — more flexibility for compliance and reporting.

***

**📈 Improvements**

* 📄 **\[API Docs]** Updated example request for the `accommodation` methodology.
* 🧾 **\[Calculations]**

  • Adjusted default accommodation values for better accuracy.
* 🏎 **\[Performance]**

  • Ruby upgraded to **3.0** — notable performance boost.
* 🌍 **\[Train & Parcel]**

  • Calculations now accept LOCODEs in more formats (e.g., `LO//CODE`).


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