Chainstack - Scheduled protocol upgrade - zkSync v29.7.0 – Maintenance details

System Under Maintenance

Scheduled protocol upgrade - zkSync v29.7.0

Completed
Scheduled for December 24, 2025 at 3:00 AM – 5:00 AM

Affects

ZKsync Era Global Nodes

Under maintenance from 3:00 AM to 5:00 AM

ZKsync Era Mainnet

Under maintenance from 3:00 AM to 5:00 AM

ZKsync Era Sepolia Testnet

Under maintenance from 3:00 AM to 5:00 AM

ZKsync Era Trader Nodes

Under maintenance from 3:00 AM to 5:00 AM

ZKsync Era Mainnet Archive (Chainstack Cloud, Los Angeles)

Under maintenance from 3:00 AM to 5:00 AM

Updates
  • Completed
    December 24, 2025 at 5:00 AM
    Completed
    December 24, 2025 at 5:00 AM
    Maintenance has completed successfully
  • In progress
    December 24, 2025 at 3:00 AM
    In progress
    December 24, 2025 at 3:00 AM
    Maintenance is now in progress
  • Planned
    December 24, 2025 at 3:00 AM
    Planned
    December 24, 2025 at 3:00 AM

    Upgrade Details: We will upgrade the protocol zkSync Era from version v29.1.2 to version v29.7.0, as part of our ongoing efforts to enhance performance, security, and reliability.

    What to expect:

    • The upgrade process is expected to take approximately 2 hours

    • During this period, there may be temporary disruptions or degraded performance

    • No action is required on your end, our team will handle the upgrade seamlessly

    We will be closely monitoring the process to ensure a smooth transition and will provide updates as needed. Thank you for your patience and support!

    If you have any questions, feel free to reach out at support@chainstack.com