[#kernel-MemPoolOptions-persist_v1_dat]
= xref:kernel.adoc[kernel]::xref:kernel/MemPoolOptions.adoc[MemPoolOptions]::persist_v1_dat
:relfileprefix: ../../
:mrdocs:

Whether to write mempool.dat using the legacy V1 serialization.

== Synopsis

Declared in `<kernel/mempool_options.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool persist_v1_dat = {DEFAULT_PERSIST_V1_DAT};
----


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