TZNames.GetLanguageCodes() does not contain en_us

[Carmageddon]

The list returned from calling TZNames.GetLanguageCodes() does not contain en_us, although I know for sure it works.
Is this a bug?
My goal was to create a fallback, before calling other methods to ensure the locale is available to avoid exception.
For example, qps-ploc locale is not available and leads to exception from GetAbbreviationForTimeZone

[mattjohnsonpint]

Looks like this is still a bug in 6.0.0. Thanks for reporting and sorry for the delay.

[Carmageddon]

Thanks for the update, I no longer work at that company where this library was being used and in fact don't use .NET stack currently.