[#BloombergLP-bbldc-DayCountConvention-maxSupportedBdexVersion-01]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bbldc.adoc[bbldc]::xref:BloombergLP/bbldc/DayCountConvention.adoc[DayCountConvention]::maxSupportedBdexVersion
:relfileprefix: ../../../
:mrdocs:

Return the maximum valid BDEX format version, as indicated by the specified `versionSelector`, to be passed to the `bdexStreamOut` method&period; Note that it is highly recommended that `versionSelector` be formatted as &quot;YYYYMMDD&quot;, a date representation&period; Also note that `versionSelector` should be a _compile_&hyphen;time&hyphen;chosen value that selects a format version supported by both externalizer and unexternalizer&period; See the `bslx` package&hyphen;level documentation for more information on BDEX streaming of value&hyphen;semantic types and containers&period;

== Synopsis

Declared in `&lt;bbldc&lowbar;daycountconvention&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
int
maxSupportedBdexVersion(int versionSelector);
----


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