History
Previous Upgrades (2015–2024)
Historical upgrade overview with timeline spacing, size comparison, and upgrade-level context.
At A Glance
High-level snapshot and upgrade spacing across eras.
Total Upgrades
13
Total Included EIPs
50
Avg EIPs / Upgrade
3.8
Largest Bundle
Byzantium
9 EIPs
Timeline Density
8m
4m
3m
1m
11m
16m
10m
16m
4m
13m
7m
11m
Upgrade Index
Sortable-style compact index for quick scanning and selection.
| Upgrade | Date | EIPs | Size Score | Type | Action |
|---|---|---|---|---|---|
| Cancun | Mar 13, 2024 | 6 | 7/10 | Hard Fork | |
| Shanghai | Apr 12, 2023 | 4 | 4/10 | Hard Fork | |
| Merge | Sep 15, 2022 | 2 | 2/10 | Merge | |
| London | Aug 5, 2021 | 5 | 6/10 | Hard Fork | |
| Berlin | Apr 15, 2021 | 4 | 4/10 | Hard Fork | |
| Istanbul | Dec 7, 2019 | 6 | 7/10 | Hard Fork | |
| Constantinople | Feb 28, 2019 | 5 | 6/10 | Hard Fork | |
| Byzantium | Oct 16, 2017 | 9 | 10/10 | Hard Fork | |
| Spurious Dragon | Nov 22, 2016 | 4 | 4/10 | Hard Fork | |
| Tangerine Whistle | Oct 18, 2016 | 1 | 1/10 | Hard Fork | |
| DAO Fork | Jul 20, 2016 | 1 | 1/10 | Hard Fork | |
| Homestead | Mar 14, 2016 | 3 | 3/10 | Hard Fork | |
| Frontier | Jul 30, 2015 | 0 | 1/10 | Hard Fork |
Selected Upgrade
Why it mattered, with direct links for deeper exploration.
Cancun
Delivered proto-danksharding groundwork for L2 scaling.
Mar 13, 20246 EIPsHard Fork
Included EIPs
6
Size Score
7/10
Category
Hard Fork
Year
2024
About
Cancun introduced EIP-4844 (blobs), enabling Layer 2 solutions to post data more economically and reducing rollup costs by orders of magnitude.
Impact Highlights
- Enabled L2 scaling; reduced rollup costs; laid danksharding groundwork.
Resources
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