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infoWordPress Core•errorerrorfolderfilesystemsystem_updateUpdatedescriptiontemporary file•labelCommon•check_circleEasy

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WordPress creates a temporary file named .maintenance in your root directory during updates. This file prevents users from viewing broken pages while the system copies new files. Your site remains stuck in this state if the update process fails to delete this file before ending.

Technical interruptions cause this error frequently. Server timeouts and memory limits often stop the script from finishing correctly. This message indicates a procedural failure within the WordPress core update workflow.

Symptoms

[dashicons-admin-generic]
Static Maintenance Page
A plain white screen displays the maintenance message across your entire website.
[dashicons-lock]
Admin Lockout
The WordPress dashboard becomes inaccessible and shows the same maintenance text.
[dashicons-warning]
Update Failed Notification
Your dashboard shows a red failure box immediately before the site becomes unavailable.

Common Causes

Interrupted Updates
Closing your browser or losing internet connection kills the update process prematurely.
Server Timeouts
The hosting server hits its maximum execution time and stops the script before completion.
Low PHP Memory
The update script exceeds allocated memory limits and crashes during execution.
Bulk Update Overload
Updating too many plugins at once consumes excessive server resources.
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