[#ChainstateManager-RecalculateBestHeader]
= xref:ChainstateManager.adoc[ChainstateManager]::RecalculateBestHeader
:relfileprefix: ../
:mrdocs:

If, due to invalidation / reconsideration of blocks, the previous best header is no longer valid / guaranteed to be the most‐work header in our block‐index not known to be invalid, recalculate it.

== Synopsis

Declared in `<validation.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[requires_capability(0x7f9513c48648), requires_capability(0x7f9502de9de8), requires_capability(0x7f950b21c5b8), requires_capability(0x7f9514bf65a8)]]
void
RecalculateBestHeader();
----


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