Base
Transaction Inclusion Delays
Identified - Update 2/6 01:30 UTC

Overview
We are actively scaling to meet elevated demand. While immediate infrastructure updates are underway to improve current throughput, we have also initiated several longer-term projects to ensure future stability and network performance.

What we did today
We’re landing changes to improve the RPC latency for eth_sendRawTransaction calls during load, and improve the efficiency of getting transactions to the block builder for selection:

* [Live on Mainnet] - Doubled the disk IO throughput of our txpool
* [Live on Mainnet] - Changed our `eth_sendRawTransaction` rate limiting window to smooth out incoming spikes. We will continue changing the rate limiting configuration in the coming days
* Built and tested a more stable routing algorithm for sending transactions to the most efficient backend. We expect this to be on Mainnet within a couple of days

What’s up next
This work is expected to take 4 to 6 weeks. We anticipate this work to achieve stable transaction inclusion and block production
* Implementing a transaction propagation redesign that removes the overhead of P2P when getting transactions to the block builder.
* Optimizing and scaling configurations for `pending` and `queued` storage of transactions
* Unifying the components of our block building, sequencing, and flashblocks streaming

We will share updates here as we make progress.
Feb 06, 2026 - 01:46 UTC
Update - We are experiencing heavy transaction volume resulting in inclusion delays. Active fixes are in progress
Feb 05, 2026 - 15:22 UTC
Monitoring - We are actively monitoring network conditions. During periods of high congestion, users may experience intermittent transaction delays or transactions dropped. Submitted transactions can occasionally take up to two minutes to be included in a block or may need to be resubmitted.  We are working on longer-term fixes to ameliorate this behavior and will share our plans and updates as we make progress.
Jan 31, 2026 - 22:42 UTC
Uptime over the past 90 days. View historical uptime.
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Flashblocks Operational
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Operational
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Partial Outage
Major Outage
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No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

No incidents or maintenance related to this downtime.

Feb 6, 2026

Unresolved incident: Transaction Inclusion Delays.

Feb 5, 2026
Mempool upgrade
Completed - The scheduled maintenance has been completed.
Feb 5, 20:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Feb 5, 18:00 UTC
Scheduled - There is no downtime for this maintenance.

As a followup from the Saturday 1/31 postmortem (https://status.base.org/incidents/zfvvgt46j9d8), we're improving the reliability of our backend mempool by reducing the variance in their configuration.

This migration will have no downtime. We expect improved transaction inclusion latency. However, this change is part of a broader set of infrastructure improvements designed to eliminate transaction drops and remove variance in inclusion times.

If you notice any problems with your applications, please reach out to the team in Discord.
Feb 4, 23:04 UTC
Feb 4, 2026

No incidents reported.

Feb 3, 2026
Base Mainnet minimum base fee increase
Completed - The scheduled maintenance has been completed.
Feb 3, 03:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Feb 3, 02:00 UTC
Scheduled - On Monday, February 2nd between 9 pm and 10 pm ET (02:00 to 03:00 UTC on February 3), the minimum base fee on Base Mainnet will be increased from 1,000,000 wei to 2,000,000. At current prices of ETH, transactions paying the minimum fee will cost approximately $0.001. For more information, see https://docs.base.org/base-chain/network-information/network-fees.
Jan 30, 16:01 UTC
Feb 2, 2026

No incidents reported.

Feb 1, 2026

No incidents reported.

Jan 31, 2026
High Rate of Transaction Drops and Transaction Inclusion Delays
Postmortem - Read details
Feb 3, 23:26 UTC
Resolved - We have validated the fix restored overall network stability. We will be conducting a full RCA and share a public postmortem in the coming days.

Periods of increased network congestion can still occasionally result in transactions being delayed or dropped - we are working on longer-term fixes to ameliorate this behavior and will share our plans and updates as we make progress.
Jan 31, 21:51 UTC
Monitoring - We have deployed a fix for the problem causing transactions to not propagate correctly to the block builder under load.

Transaction inclusion has improved; we're continuing to monitor the fix in order to ensure the problem is resolved.
Jan 31, 20:47 UTC
Identified - We are now seeing high failure rates in transaction processing by the txpool and block builder. Users will experience high rates of transaction drops from the txpool, as well as overall high transaction inclusion times.

We are actively troubleshooting this problem.
Jan 31, 20:35 UTC
Monitoring - We have identified an issue causing occasional dropped transactions during high-traffic periods. We have implemented a fix and are now monitoring the results.

Update 1/31: The fix is still being tested. We still have high rates of transaction distribution failures and continue to investigate solutions.
Jan 30, 23:05 UTC
Investigating - Base is experiencing intermittent transaction delays due to network congestion. Submitted transactions can occasionally take up to two minutes to be included in a block. We are actively working on a fix and expect this behavior to continue until it can be tested and deployed.
Jan 22, 22:19 UTC
Jan 30, 2026
Jan 29, 2026

No incidents reported.

Jan 28, 2026

No incidents reported.

Jan 27, 2026

No incidents reported.

Jan 26, 2026

No incidents reported.

Jan 25, 2026

No incidents reported.

Jan 24, 2026

No incidents reported.

Jan 23, 2026

No incidents reported.

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