Ethereum Network Upgrades — 2026 Hard Fork Calendar
Official Ethereum mainnet hard forks and protocol upgrades with exact activation dates, included EIPs, and automatic calendar updates. Broad roadmap targets remain clearly marked until an exact activation is announced.
Subscribe to this Smart Calendar Feed
One click — events appear in your calendar within minutes and update automatically as the feed refreshes.
Using a different calendar app? Copy the feed URL and add it as a subscription:
https://smartcalendars.ai/cal/775dfe94bbefc9a7b32d76696d9d80e4540ed69a0826608bd08052dca7a03475.ics
Past events
March 2016
July 2016
October 2016
November 2016
October 2017
February 2019
December 2019
January 2020
April 2021
August 2021
October 2021
December 2021
June 2022
September 2022
April 2023
March 2024
May 2025
December 2025
January 2026
Embed this calendar
Add this live, auto-updating calendar to your website or blog.
Frequently asked questions
How do I subscribe to the Ethereum Network Upgrades calendar?
Open the Ethereum Network Upgrades subscribe URL on this page and pick your calendar app — Apple, Google, or Outlook. The events sync automatically and stay up to date.
How often does this calendar update?
This feed refreshes on a regular schedule and your calendar app pulls the latest version on its own (usually every few hours).
Is the Ethereum Network Upgrades calendar feed free?
Yes — every feed in our catalog is free to subscribe to, with no account required.
Can I create my own custom calendar feed?
Yes. Smart Calendars AI lets you create a custom calendar feed from any prompt — describe a topic in plain English and we generate a continuously-updated calendar from across the public web.
Can I share my own calendar availability privately?
Yes — you can publish a private free/busy feed from your Google or Microsoft calendar. Subscribers only see when you're busy, never the event details. Learn more about privacy-first calendar sharing.
Where does this calendar’s data come from?
Source: Ethereum Improvement Proposals (CC0) and ethereum.org (CC BY 4.0).
Related smart calendar feeds
ECB Governing Council Calendar
Every European Central Bank Governing Council monetary-policy meeting and accounts (minutes-equivalent) release. Monetary-policy decisions are timed at 14:15 CET with the press conference at 14:45 CET. ECB staff macroeconomic projections are published alongside decisions in March, June, September, and December.
Fed FOMC Meeting Calendar
Every Federal Open Market Committee (FOMC) meeting cycle, with Meeting Day 1 as an all-day entry, the Day 2 rate decision at 14:00 ET, and the minutes release three weeks later at 14:00 ET. SEP meetings are marked on the rate-decision event rather than split into separate entries.
US Economic Calendar
Every scheduled US macro-indicator release that moves markets: CPI inflation, Nonfarm Payrolls (NFP) jobs report, GDP, PCE inflation, Retail Sales, Industrial Production, and PPI. Release times are the BLS/BEA convention in US Eastern Time (08:30 ET for CPI/NFP/GDP/PCE/retail, 09:15 ET for industrial production). Release dates from bls.gov, bea.gov, federalreserve.gov, and census.gov.
US CPI Release Calendar
Every scheduled release of the US Consumer Price Index (CPI), the headline monthly inflation print. Published by the Bureau of Labor Statistics at 08:30 Eastern Time on release day. The CPI report is one of the most closely-watched market-moving releases for interest-rate expectations and USD-denominated asset pricing.
Related articles
Best AI Calendar Apps in 2026: Compare Smart Calendars AI, Sunsama, Motion & More
Compare the best active AI calendar apps for 2026 by capture speed, planning depth, pricing, and workflow fit, with an updated note on the Clockwise shutdown.
Planner to Calendar: Turn Plans Into a Real Schedule
Turn content plans, student workflows, and small-business operations into calendar events, reminders, and time blocks. Smart Calendars AI closes the gap between what you planned and what actually gets scheduled.
Email to Calendar: Turn Gmail, Outlook & Booking Emails into Events
Forward or paste any Gmail or Outlook email and Smart Calendars AI extracts dates, times, links, and locations into calendar events for Apple, Google, or Outlook.
Create a custom calendar feed from any prompt.
Create Your Custom Calendar Feed