Werk #19341: Fix dashboard crashes after update due to incompatible graph size type

Component

User interface

Title

Fix dashboard crashes after update due to incompatible graph size type

Date

Feb 19, 2026

Level

Prominent Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.6.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.4.0p23	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0p43	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

Rendering of graphs that had been resized could lead to dashboard crashes showing a stacktrace due to incompatibilities in the storage format for the graph sizes.

This has been fixed and dashboards with graphs will function normally after updates without requiring any manual reconfiguration. Users do not need to take any action, as the fix automatically maintains seamless operation of all existing graph configurations.

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