[tz] Discussion in ECMA about tz identifiers in JavaScript

[Paul Eggert]

On 03/04/2013 11:07 PM, Alan Barrett wrote:
> Have any tz id's ever disappeared in the past?

I don't recall any, no.  My memory is not perfect.

> perhaps the tz project could guarantee that none will disappear in
> the future.

I'm not sure what is meant by "guarantee", but it is listed as the
last of the general rules used for location names, in the Theory file.