Ethereum Blog •
May 2, 2026 at 13:40 •
Development
This past week, just over 100 Ethereum core contributors gathered above the Arctic Circle — in Longyearbyen, Svalbard — for the Soldøgn Interop: a week of intense work on the Glamsterdam network upgrade. Soldøgn followed last year's Berlinterop, but returned to the format used by Amphora 🏺, [Edelweiss 🏔️](https://blog.ethereum.org/2023/02/07/edelweiss-interop-recap......
