[#CChainParams-DeploymentOptions-activation_heights]
= xref:CChainParams.adoc[CChainParams]::xref:CChainParams/DeploymentOptions.adoc[DeploymentOptions]::activation_heights
:relfileprefix: ../../
:mrdocs:

Per‐deployment fixed activation heights for buried deployments.

== Synopsis

Declared in `<kernel/chainparams.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::unordered_map<Consensus::BuriedDeployment, int> activation_heights = {};
----


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