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benface
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Oct 22, 2025
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| The `totalDifficulty` field was [officially removed](https://github.com/ethereum/execution-apis/pull/570) from the `eth_getBlockByNumber` response. Additionally, the `difficulty` field—previously used in Proof of Work—was retained as **optional** but is now considered obsolete and typically returned as `"0x0"` by spec-compliant clients. While some clients continue to include these fields for backward compatibility, developers relying on them should update their subgraphs and tooling to accommodate these schema changes. Full schema details are available in the [Ethereum Execution APIs documentation](https://ethereum.github.io/execution-apis/). We've added a chart with the current client compatibility with these updates as of July 17, 2025. **Please check for specific client updates as needed**. | ||
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| **Ethereum JSON‑RPC Schema Changes Post-Merge** |
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Maybe this should be a heading?
benface
reviewed
Oct 22, 2025
| | `difficulty` | ⚠️ Optional, expected to be `0x0` post-Merge, but many clients still return | | ||
| | `size` | ⚠️ Optional; may be omitted depending on client | | ||
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| **Execution Client Compatibility** |
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request by InfraDAO