[Urgent] Scheduled: Near Mainnet - Upgrade nearcore to v2.8.0

Scheduled for Sep 19, 12:00 - 16:00 UTC

Scheduled

Scheduled maintenance will be performed during the maintenance window.

**Client Updates:**
• nearcore: Upgrading to v2.8.0

**Upgrade Details:**
• Scheduled for Friday 19-09-2025 @ 12:00 UTC

**Release Notes Summary:**
**Network Protocol Upgrade**
• Protocol upgrade from version 79 to 80 scheduled for Tuesday, September 23, 2025, between 09:00-16:00 UTC
• Network validator capacity increasing from 300 to 500 validators with shard mandate adjustments (65 to 105 per shard)

**Additional Information:**
• Release notes: https://github.com/near/nearcore/releases/tag/2.8.0

Posted Sep 16, 2025 - 08:28 UTC

This scheduled maintenance affects: NEAR (Mainnet — JSON-RPC API).