[#VersionBitsCache-ComputeBlockVersion]
= xref:VersionBitsCache.adoc[VersionBitsCache]::ComputeBlockVersion
:relfileprefix: ../
:mrdocs:

Determine what nVersion a new block should use

== Synopsis

Declared in `<versionbits.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[requires_capability(0x7f2e18fdbc38), requires_capability(0x7f2e1a0cd108), requires_capability(0x7f2e24cb6f38), requires_capability(0x7f2e37ab5458), requires_capability(0x7f2e27e04e58), requires_capability(0x7f2e1eea0e08), requires_capability(0x7f2e283fbbc8)]]
int32_t
ComputeBlockVersion(
    xref:CBlockIndex.adoc[CBlockIndex] const* pindexPrev,
    xref:Consensus/Params.adoc[Consensus::Params] const& params);
----

== Return Value

The version to use for the new block.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *pindexPrev*
| The parent block preceding the new block.
| *params*
| The consensus parameters holding the deployments.
|===


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