# Product Release Notes June 2023 - Massive Performance Boosts & Smarter Calculations

* 🏨 **\[Hotels]**

  • Improved mappings of room types in **hotel basic methodology**.

  • Added **hotel code** support (Amadeus, Sabre, Worldspan, and more) — SQUAKE can now resolve hotels from multiple booking systems.
* 🚄 **\[Calculations – Train]**

  • Added **CO₂-emissiefactoren** methodology for trains.
* 📊 **\[Client Dashboard]**

  • Added support for **v2 data** in the dashboard.
* 🌍 **\[Carbon Query – Google TIM]**

  • Added codeshare & fallback data — now over **70M rows** while keeping query times in milliseconds.
* 🧾 **\[Invoices]**

  • Added **Bad Debt** state for invoices.
* 🌱 **\[Projects]**

  • Added **two new certification standards** for projects.

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**📈 Improvements**

* ⚡ Major **overall performance improvements** and reduced memory usage.
* ✅ Better validations on items passed to calculations.
* 🏨 Better validations for **hotel methodology** inputs.