ISO 639-3 releases list of 2009 changes

[Randy Presuhn]

Hi -

> From: "Mark Davis ☕" <mark at macchiato.com>
> To: "Leif Halvard Silli" <xn--mlform-iua at xn--mlform-iua.no>
> Cc: <ietf-languages at iana.org>; "John Cowan" <cowan at ccil.org>; "Doug Ewell" <doug at ewellic.org>
> Sent: Friday, January 22, 2010 11:12 AM
> Subject: Re: ISO 639-3 releases list of 2009 changes
...
> So for compatibility and stability reasons, in Unicode we map the
> predominant encompassed subtag to the macrolanguage. The "no" and "sh"
> predated the macrolanguage mechanism, and are handled differently -- also
> for compatibility. (Although frankly, in an ideal world we'd also map "nb"
> to "no", and "sh" to "sr".)
...

Your free to do so, but it should be clear to all
that that transformation entails loss of information.

Randy