[Nix-dev] firefox package questions

[joachifm at fastmail.fm]

On Mon, Jun 19, 2017, at 12:25, Roland Koebler wrote:
> Hi,
> 
> [ ...]
> - Up to date versions:
>   Currently, NixOS only contains outdated Firefox-versions (53.0.3,
>   52.1.2esr);
>   there are newer official versions since about 1 week.
>   How long does it usually take until the newest version gets packaged?

Both the release branch and master carry firefox 54. Which channel are
following?