[Runtime] RT4401 Schedule

[aaron.e.256]

We are planning to release Runtime 4401 in all network(s) following the schedule below:

Moonbase Alpha
When: June 17, 2026

Moonriver
When: July 6, 2026 at approximately 13:00:00 UTC
Block: ~ 16,960,935

Moonbeam
When: July 13, 2026 at approximately 13:00:00 UTC
Block: ~16,425,933

This runtime upgrade includes several breaking changes.
See the release note for more details: Releases · moonbeam-foundation/moonbeam · GitHub

• Runtime: Release Runtime runtime-4401 · moonbeam-foundation/moonbeam · GitHub
• Minimum Client: moonbeamfoundation/moonbeam:v0.52.3
• Recommended Client: moonbeamfoundation/moonbeam:v0.52.3
• Recommended Tracing Client: moonbeamfoundation/moonbeam-tracing:v0.52.3-4401-e113

[aaron.e.256]

Summary of Changes

Moonbeam Runtime 4401 — What it means for you

Runtime 4401 introduces updates to EVM transaction limits, precompile behavior, and block capacity management.

EVM updates

• Increased the maximum EVM transaction gas limit to 35 million gas.

• The P256Verify precompile now charges EVM gas for signature verification, aligning costs more closely with execution performed.

Notable changes

• CallPermit nonces are now consumed even when a subcall fails, preventing nonce reuse in failed execution paths.

Block capacity improvements

• Added a maximum transactions per block limit to improve block production predictability and network stability.

For full details, see the release notes:
https://github.com/moonbeam-foundation/moonbeam/releases/tag/runtime-4401