# GIWA Chain 공지

- [op-geth 지원 종료 및 op-reth 전환](https://docs.giwa.io/notices/giwa-chain/op-geth-sunset.md)
- [Flashblocks 기능 지원](https://docs.giwa.io/notices/giwa-chain/flashblocks.md)
- [이전 공지](https://docs.giwa.io/notices/giwa-chain/archive.md)
- [Upgrade 18 프로토콜 업그레이드](https://docs.giwa.io/notices/giwa-chain/archive/upgrade-18.md)
- [Upgrade 17 Jovian 하드포크](https://docs.giwa.io/notices/giwa-chain/archive/upgrade-17.md)
- [Upgrade 16a 프로토콜 업그레이드](https://docs.giwa.io/notices/giwa-chain/archive/upgrade-16a.md)


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