Omit EIP-4399 (#513)

* Wording * Change format of EIP 4895 rationale * Move EIP-4399 to omit * Wording Co-authored-by: meowsbits <b5c6@protonmail.com> --------- Co-authored-by: meowsbits <b5c6@protonmail.com>
ethereumclassic · Aug 25, 2023 · 64423c7 · 64423c7
1 parent f8d2dc7
commit 64423c7
Showing 1 changed file with 3 additions and 6 deletions.
diff --git a/_specs/ecip-1109.md b/_specs/ecip-1109.md
@@ -17,11 +17,11 @@ Add support for a subset of protocol-impacting changes introduced in the Ethereu
 
 EIP | Description | Status
 -- | -- | --
-4399 | Supplant DIFFICULTY opcode with PREVRANDAO | Compatible inclusion
 3651 | Warm COINBASE | Include
 3855 | PUSH0 instruction | Include
 3860 | Limit and meter initcode |  Include
 6049 | Deprecate SELFDESTRUCT | Include
+4399 | Supplant DIFFICULTY opcode with PREVRANDAO | Omit
 4895 | Beacon chain push withdrawals as operations | Omit
 
 Beacon chain withdrawals are omitted at this time as they are not applicable for Ethereum Classic. 
@@ -32,12 +32,9 @@ Beacon chain withdrawals are omitted at this time as they are not applicable for
 - EIP 3855 "PUSH0 instruction": Introduces the PUSH0 (0x5f) instruction, which pushes the constant value 0 onto the stack.
 - EIP-3860 "Limit and meter initcode": Limits the maximum size of initcode to 49152 bytes and apply extra gas cost of 2 for every 32-byte chunk of initcode
 
-##### Compatible inclusion
-- EIP 4399 "Supplant DIFFICULTY opcode with PREVRANDAO": Historicaly, the DIFFICULTY (0X44) instruction was used as a source of pseudo randomness. With the switch to Proof of Stake, Ethereum removed the work difficulty so, as a replacement, they now expose a [RANDAO](https://ethereum.org/en/developers/docs/consensus-mechanisms/pos/block-proposal/#random-selection) value taken from the beacon chain. Since v0.8.18, Solidity [deprecates](https://docs.soliditylang.org/en/v0.8.18/cheatsheet.html#global-variables) the `block.difficulty` and replaces it with `block.prevrandao` but this syntactic change still compiles to the same EVM opcode, i.e. `0x44`, which in the Ethereum Classic network will continue to work with the aforementioned _block difficulty_.
-
 ##### Omitted
-- EIP 4895 "Beacon chain push withdrawals as operations": In Proof of Stake networks, enable validator withdrawals from the beacon chain to the EVM
-- Ethereum Classic network only grants rewards through Proof of Work mining on the canonical chain, there are no validators, so this doesn't apply.
+- EIP 4399 "Supplant DIFFICULTY opcode with PREVRANDAO": Historically, the DIFFICULTY (0X44) instruction was used as a source of pseudo randomness. With the switch to Proof of Stake, Ethereum removed the work difficulty so, as a replacement, they now expose a [RANDAO](https://ethereum.org/en/developers/docs/consensus-mechanisms/pos/block-proposal/#random-selection) value taken from the beacon chain. Since v0.8.18, Solidity [deprecates](https://docs.soliditylang.org/en/v0.8.18/cheatsheet.html#global-variables) `block.difficulty` and replaces it with `block.prevrandao` but this syntactic change still compiles to the same EVM opcode, i.e. `0x44`, which in the Ethereum Classic network will continue to evaluate as the aforementioned _block difficulty_ value.
+- EIP 4895 "Beacon chain push withdrawals as operations": In Proof of Stake networks, enable validator withdrawals from the beacon chain to the EVM. Ethereum Classic network only grants rewards through Proof of Work mining on the canonical chain, there are no validators, so this doesn't apply.
 
 This document proposes the following blocks at which to implement these changes in the Ethereum Classic networks: