EIPs/EIPS/eip-1679.md
Micah Zoltu 15f61ed0fd
Adds rule to EIP-1 that references to other EIPs must use relative path format and the first reference must be linked. (#2947)
I have gone through and updated all existing EIPs to match this rule, including EIP-1.

In some cases, people were using markdown citations, I suspect because the long-form was a bit verbose to inline.  Since the relative path is quite short, I moved these to inline but I wouldn't be opposed to putting them back to citation format if that is desired by the authors.

In doing the migration/cleanup, I found some EIP references to EIPs that don't actually exist.  In these cases I tried to excise the reference from the EIP as best I could.

It is worth noting that the Readme actually already had this rule, it just wasn't expressed properly in EIP-1 and the "Citation Format" section of the readme I think caused people a bit of confusion (when citing externally, you should use the citation format).
2020-09-30 12:22:43 +08:00

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---
eip: 1679
title: "Hardfork Meta: Istanbul"
author: Alex Beregszaszi (@axic), Afri Schoedon (@5chdn)
discussions-to: https://ethereum-magicians.org/t/hardfork-meta-istanbul-discussion/3207
type: Meta
status: Final
created: 2019-01-04
requires: 152, 1108, 1344, 1716, 1884, 2028, 2200
---
## Abstract
This meta-EIP specifies the changes included in the Ethereum hardfork named Istanbul.
## Specification
- Codename: Istanbul
### Activation
- `Block >= 9,069,000` on the Ethereum mainnet
- `Block >= 6,485,846` on the Ropsten testnet
- `Block >= 14,111,141` on the Kovan testnet
- `Block >= 5,435,345` on the Rinkeby testnet
- `Block >= 1,561,651` on the Görli testnet
### Included EIPs
- [EIP-152](./eip-152.md): Add Blake2 compression function `F` precompile
- [EIP-1108](./eip-1108.md): Reduce alt_bn128 precompile gas costs
- [EIP-1344](./eip-1344.md): Add ChainID opcode
- [EIP-1884](./eip-1884.md): Repricing for trie-size-dependent opcodes
- [EIP-2028](./eip-2028.md): Calldata gas cost reduction
- [EIP-2200](./eip-2200.md): Rebalance net-metered SSTORE gas cost with consideration of SLOAD gas cost change
## References
1. Included EIPs were finalized in [All Core Devs Call #68](https://github.com/ethereum/pm/blob/master/All%20Core%20Devs%20Meetings/Meeting%2068.md)
2. https://medium.com/ethereum-cat-herders/istanbul-testnets-are-coming-53973bcea7df
## Copyright
Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/).