Scheduled: Solana Mainnet – Upgrade Agave & Jito to v2.3.9

Scheduled for Sep 23, 12:00 UTC - Sep 26, 16:00 UTC

Scheduled

We will be upgrading our Agave and Jito clients on the Solana Mainnet to version v2.3.9 on 2025-09-23 at 12:00 UTC.

The v2.3.9 release includes performance improvements and stability fixes. It also prepares the network for upcoming protocol enhancements while maintaining compatibility with current Mainnet operations.

Impact:
No downtime is expected. However, customers may experience brief connection interruptions and a small number of HTTP 503 responses as services restart and resynchronize with the cluster.

Release links:
• 📦 Agave: https://github.com/anza-xyz/agave/releases/tag/v2.3.9
• 📦 Jito: https://github.com/jito-foundation/jito-solana/releases/tag/v2.3.9-jito
• 🔄 Agave Compare: https://github.com/anza-xyz/agave/compare/v2.3.7…v2.3.9
• 🔄 Jito Compare: https://github.com/jito-foundation/jito-solana/compare/v2.3.7-jito…v2.3.9-jito

Posted Sep 16, 2025 - 07:40 UTC

This scheduled maintenance affects: Solana (Mainnet — JSON-RPC API, Mainnet — Websockets API, Mainnet — Streams).