Maintenance
Polygon (Mainnet) - Hard Fork "Lisovo/LisovoPro"
Resolved Mar 4, 2026 at 2:00pm UTC
Polygon (Mainnet) is undergoing the Hard Fork "Lisovo/LisovoPro" on block 83756500, at around 2 PM UTC, March 4th 2026
- https://polygonscan.com/block/countdown/83756500
- https://forum.polygon.technology/t/bor-v2-6-0-and-erigon-v3-4-0-for-mainnet-and-amoy/21757
Cronos (Mainnet) - v1.7 Breaking Upgrade
Resolved Mar 10, 2026 at 7:00am UTC
The Cronos Foundation has announced a breaking Upgrade with a minimum estimated downtime of ~30 min. Affected services:
- The upgrade is scheduled at block height: 58,825,800
- Cronos EVM Mainnet block production
- Cronos EVM Mainnet Explorer (https://explorer.cronos.org/)
- Cronos EVM Mainnet IBC transactions
- Cronos EVM Mainnet endpoints (https://evm.cronos.org/ , https://rpc.cronos.org/ )
- https://github.com/crypto-org-chain/cronos/releases/tag/v1.7.0
Polygon Amoy (Testnet) - Hard Fork "Giugliano"
Resolved Mar 23, 2026 at 2:00pm UTC
Polygon Amoy (Testnet) is undergoing a Hard Fork on Monday, March 23, 2026, 02:00 PM UTC for "Giugliano" (block: 35573500)
- https://forum.polygon.technology/t/bor-v2-7-0-beta2-and-erigon-v3-5-0-beta2-for-amoy/21809
- https://amoy.polygonscan.com/block/countdown/35573500
No downtime is expected
Celo (Mainnet) - Hard Fork "Jovian"
Resolved Mar 31, 2026 at 12:00pm UTC
Celo (Mainnet) is undergoing a Hard Fork on Tue, Mar 31, 2026, 12:06:28 UTC for "Jovian"
- https://forum.celo.org/t/jovian-hardfork-live-on-celo-sepolia-coming-to-mainnet/13122
- https://docs.celo.org/infra-partners/notices/jovian-upgrade
No downtime is expected
Cosmos (Mainnet) - Urgent Update Gaia v27.1.0
Resolved Apr 1, 2026 at 4:45pm UTC
Cosmos (Mainnet) is undergoing a mandatory node update to Gaia v27.1.0.
- https://www.mintscan.io/cosmos/proposals/1026
Scheduled Data Center Maintenance – April 2, 2026
Resolved Apr 2, 2026 at 6:00pm UTC
One of our data center providers will be performing infrastructure upgrades on April 2, 2026 from 18:00 UTC to April 3, 2026 at 02:00 UTC.
- No service impact is expected
- There is a risk of unplanned downtime if issues occur during the maintenance window.
- We will provide updates if there’s an impact to our service.
Polygon Amoy (Testnet) - Polygon Foundation Load & Stress Testing
Resolved Apr 7, 2026 at 6:00pm UTC
The Polygon Foundation will be conducting Load & Stress Testing over Polygon Amoy (Testnet) on April 7 at 6:00 PM (UTC).
- Service disruptions should be expected
Polygon (Mainnet) - Hard Fork "Giugliano"
Resolved Apr 8, 2026 at 2:00pm UTC
Polygon (Mainnet) is undergoing the Hard Fork "Giugliano" on block 85268500, at around 2 PM UTC, April 8th 2026.
- https://polygonscan.com/block/countdown/85268500
- https://forum.polygon.technology/t/bor-v2-7-0-and-erigon-v3-5-0-for-mainnet/21830
No downtime is expected
Polygon Amoy (Testnet) - Polygon Foundation Load & Stress Testing
Resolved Apr 10, 2026 at 3:00pm UTC
The Polygon Foundation will be conducting Load & Stress Testing over Polygon Amoy (Testnet) on April 10 at 3:00 PM (UTC).
- Service disruptions should be expected
Polygon Amoy (Testnet) - Heimdall v2
Maintenance Apr 16, 2026 at 2:00pm UTC
Polygon Amoy (Testnet) is undergoing a mandatory update on Heimdall v2, expected to occur on April 16, 2026 around 14:00 UTC
- Block Height - 32276400 : https://heimdall-amoy.vitwit.com/
- At this time, no service impact is expected