[tz] RFC 8536bis

[Paul Eggert]

On 2024-01-31 07:36, Michael H Deckers via tz wrote:
> 
> 
>     In 2014b, the new tzdb timezone for Antarctica/Troll required
>     regular switches among three offsets for the foreseeable future.
>     This led to an extension of the TZif format so that the footer
>     could contain two TZ strings (or so I thought); 

There's no such feature in tzcode. I don't recall such a feature being 
discussed - could you point us at any thread in the archive?

What I do recall is a long thread about leap second expiration, and that 
tzcode conforms to RFC 8536bis as far as I know.