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ethereum_events.yml
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# A list of Ethereum protocol upgrades / events
# types: Issuances Change, Block Time Change, DDOS, Difficulty Bomb, Product Upgrade
# full list: https://ethereum.org/en/history/
upgrades:
- date: "2015-07-30"
type: "Issuance Change"
title: "Genesis Block"
short_title: "Genesis Block"
issuance: "5 ETH per Block"
description: "The Ethereum genesis block was mined. The start of the network."
source: "https://blog.ethereum.org/2015/07/30/ethereum-launches"
show_in_chart: false
- date: "2016-03-14"
type: "Block Time Change"
title: "Homestead Upgrade"
short_title: "Homestead"
issuance: "5 ETH per Block"
description: "The Homestead upgrade lead to a slight reduction in block times."
source: "https://blog.ethereum.org/2016/02/29/homestead-release/"
show_in_chart: false
- date: "2016-09-22"
type: "DDOS"
title: "Anomaly"
short_title: "Anomaly"
issuance: "5 ETH per Block"
description: "A series of Denial-of-Service (DDoS) attacks targeted the Ethereum network which led to a temporary increase in block time."
source: "https://blog.ethereum.org/2016/09/22/ethereum-network-currently-undergoing-dos-attack/"
show_in_chart: false
- date: "2017-06-01"
type: "Difficulty Bomb"
title: "Difficulty Bomb Activates"
short_title:
issuance: "5 ETH per Block"
description: "Difficulty bomb activates slowing block times."
source:
show_in_chart: false
- date: "2017-10-16"
type: "Issuance Change"
title: "Byzantium - Reduce Issuance and Difficulty Bomb Delay"
short_title: "Byzantium"
issuance: "3 ETH per Block"
description: "Byzantium upgrade includes a reduction of block rewards from 5 ETH to 3 ETH and delays difficulty bomb."
source: "https://blog.ethereum.org/2017/10/12/byzantium-hf-announcement/"
show_in_chart: true
- date: "2018-11-01"
type: "Difficulty Bomb"
title: "Difficulty Bomb Activates"
short_title: "Difficulty Bomb"
issuance: "3 ETH per Block"
description: "Difficulty bomb reactivates slowing block times."
source:
show_in_chart: false
- date: "2019-02-28"
type: "Issuance Change"
title: "Constantinople - Reduce Issuance and Difficulty Bomb Delay"
short_title: "Constantinople"
issuance: "2 ETH per Block"
description: "Constantinople upgrade reduces block reward from 3 ETH to 2 ETH and delays difficulty bomb."
source: "https://blog.ethereum.org/2019/02/22/ethereum-constantinople-st-petersburg-upgrade-announcement/"
show_in_chart: true
- date: "2019-11-01"
type: "Difficulty Bomb"
title: "Difficulty Bomb Activates"
short_title: "Difficulty Bomb"
issuance: "2 ETH per Block"
description: "Difficulty bomb reactivates slowing block times."
source:
show_in_chart: false
- date: "2020-01-01"
type: "Difficulty Bomb"
title: "Difficulty Bomb Activates"
short_title: "Difficulty Bomb"
issuance: "2 ETH per Block"
description: "Muir Glacier upgrade delayed difficulty bomb."
source:
show_in_chart: false
- date: "2020-12-01"
type: "Issuance Change"
title: "Serenity Phase 0"
short_title: "Beacon Chain"
issuance: "2 ETH per Block + PoS issuance"
description: "Serenity Phase 0 deployment increased issuance to secure the Beacon Chain a separate Proof-of-Stake network running in parallel to Ethereum's Proof-of-Work (PoW)"
source:
show_in_chart: true
- date: "2021-08-06"
type: "Issuance Change"
title: "London Burn EIP-1559"
short_title: "Burn EIP-1559"
issuance: "2 ETH per Block + PoS issuance + Fee Burn"
description: "London upgrade introduced EIP-1559 a mechanism to burn a portion of transaction fees. Ultra sound money is born."
source: "https://decrypt.co/collections/ethereum-london-hard-fork-eip-1559"
show_in_chart: true
- date: "2022-09-15"
type: "Issuance Change"
title: "Paris The Merge"
short_title: "The Merge"
issuance: "PoS issuance + Fee Burn"
description: "Paris upgrade introduced the Merge - a transition from PoW to PoS by merging the main Ethereum chain with the Beacon Chain. This event permanently reduced ETH issuance by approximately 90%."
source:
show_in_chart: true
- date: "2023-04-12"
type: "Product Upgrade"
title: "Shanghai-Capella (Shapella)"
short_title: "Shapella"
issuance: "PoS issuance + Fee Burn"
description: "Shapella introduces various Staking improvements like enabling withdrawals."
source: "https://blog.ethereum.org/2023/03/28/shapella-mainnet-announcement"
show_in_chart: false
- date: "2024-03-13"
type: "Product Upgrade"
title: "Cancun-Deneb (Dencun)"
short_title: "Dencun"
issuance: "PoS issuance + Fee Burn"
description: "Dencun introduces Proto-Danksharding via EIP4844"
source: "https://blog.ethereum.org/2024/02/27/dencun-mainnet-announcement"
show_in_chart: false
- date: "2025-05-02"
type: "Product Upgrade"
title: "Prague-Electra (Pectra)"
short_title: "Pectra"
issuance: "PoS issuance + Fee Burn"
description: "Pectra increases Blob Target and brings UX improvements with native Account Abstraction"
source: "https://blog.ethereum.org/2025/04/23/pectra-mainnet"
show_in_chart: false
- date: "2025-12-03"
type: "Product Upgrade"
title: "Fulu-Osaka (Fusaka)"
short_title: "Fusaka"
issuance: "PoS issuance + Fee Burn"
description: "Major improvements to Ethereum's scalability and user experience, including PeerDAS for enhanced data availability."
source: "https://forkcast.org/upgrade/fusaka/"
show_in_chart: false