Chainstack - Notice history

Experiencing partially degraded performance

Chainstack Console - Operational

100% - uptime
Mar 2026 · 100.0%Apr · 100.0%May · 100.0%

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Mar 2026
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Chainstack API - Operational

100% - uptime
Mar 2026 · 100.0%Apr · 100.0%May · 100.0%

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Mar 2026
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Chainstack Docs - Operational

100% - uptime
Mar 2026 · 100.0%Apr · 100.0%May · 100.0%

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Mar 2026
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Chainstack Faucet - Operational

100% - uptime
Mar 2026 · 100.0%Apr · 99.99%May · 100.0%

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Mar 2026
Apr 2026
May 2026

Notice history

May 2026

Scheduled protocol upgrade
Scheduled for May 28, 2026 at 3:30 AM – 3:30 AM
  • Planned
    May 28, 2026 at 3:30 AM
    Planned
    May 28, 2026 at 3:30 AM

    Upgrade Details:

    We will upgrade the protocol Agave to version 4.0.0, as part of our ongoing efforts to enhance performance, security, and reliability.

    What to expect:

    Critical Changes:

    • QUIC-only transaction ingestion: UDP support removed - all transaction processing now uses QUIC protocol

    • Legacy format removal: Old blockstore column formats (PerfSampleV1, TransactionStatus, SlotMetaV1, IndexV1) no longer supported

    RPC Behavior Changes:

    • getSignaturesForAddress now returns error code -32020 instead of empty array when signatures not found

    • Signature verification failures in simulateTransaction() now appear as TransactionError::SignatureFailure on result instead of JSON-RPC error

    For more detailed technical information about this release, you can view the official Agave v4.0.0 release notes on GitHub.

    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@chainstack.com

Ethereum Sepolia - Degraded Performance / London
  • Investigating
    Investigating
    We are currently investigating this incident.
Urgent Planned Network Maintenance (Chainstack Cloud, London)
  • Completed
    May 26, 2026 at 5:00 AM
    Completed
    May 26, 2026 at 5:00 AM
    Maintenance has completed successfully
  • In progress
    May 26, 2026 at 3:00 AM
    In progress
    May 26, 2026 at 3:00 AM
    Maintenance is now in progress
  • Planned
    May 26, 2026 at 3:00 AM
    Planned
    May 26, 2026 at 3:00 AM

    Dear Valued Users,

    We would like to inform you that we will be conducting urgent planned network maintenance on Chainstack Cloud in London to improve network reliability and overall service performance.


    We will upgrade underlying systems during this window. Services will remain available, but brief network disruptions and elevated latencies may occur, including short WebSocket (WS) interruptions that may require automatic reconnection.


    We're sorry for the inconvenience and appreciate your patience as we work to improve our services.

    If you have any questions or concerns, please don’t hesitate to contact us.


    Thank you for your understanding.

TON Testnet - Network Halt
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    We are currently investigating this incident.
Polygon Mainnet Archive - Degraded Performance
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    We are currently investigating this incident.

Apr 2026

Polygon Mainnet – Degraded Performance in the Tokyo region
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    We are currently investigating this incident.
Base Sepolia / Degraded Performance in Dallas
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    We are currently investigating this incident.
Los Angeles (LAX) cluster degraded performance
  • Resolved
    Resolved
    This incident has been resolved.
  • Monitoring
    Monitoring
    We implemented a fix and are currently monitoring the result.
  • Investigating
    Investigating
    We are currently investigating this incident.
Solana Mainnet Incident
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    We are currently investigating this incident.
Sonic/Blaze Testnet degraded performance
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    We are currently investigating this incident.

Mar 2026

Degraded performance on Polygon Mainnet nodes in London
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    We are currently investigating this incident.
Base Mainnet Headlag affecting Ashburn region
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    We are currently investigating this incident.
Degraded performance on Unichain Mainnet nodes
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    We are currently investigating this incident.
Degraded performance on BSC Mainnet (Chainstack Cloud, London)
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    We are currently investigating this incident.
BSC Mainnet lagging in Singapore and London clusters
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    We are currently investigating this incident.

Mar 2026 to May 2026

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