Between March 18 and March 23, we updated Next.js from version 15 to version 16.
Problem
Are the costs during that period off? What’s going on? They’re way over our budget.
| Period | Cost per PV |
|---|---|
| Before upgrade (March 13-17) | $0.00012 – $0.00025 |
| After upgrade (March 18-22) | $0.00038 – $0.00073 |
Root Cause:
Next.js 16 changed caching from implicit (automatic) to explicit ("use cache" directive). Our previously cached content was suddenly being served dynamically, causing increased Fast Origin Transfer and Edge Request charges.
Workaround:
We had to downgrade to Next.js 15 to stop the cost increase.