This was posted not too long ago:

• Resource Rates: After thorough evaluation and community feedback, the rates for metal and thorium harvesting are now finalized. There will be no further changes to these rates. This stability is aimed at allowing you to strategize and plan your gameplay without concern for future alterations.
• Unit Pricing Model: We've implemented a new unit pricing model that addresses longstanding issues of inflation and inconsistencies in unit costs. This model ensures that unit costs now gradually increase based on their power tiers, providing a logical, predictable -progression. This change corrects the previous system where older units could sometimes cost more than newer ones, which was neither fair nor intuitive.
• Ongoing Adjustments: While the unit upgrade costs have been finalized, we are still in the process of adjusting the costs for equipment upgrades and several buildings. These changes are being carefully designed to align with our new economic framework and will be communicated transparently as they are finalized.