[tex-live] BibLatex issues after last upgrade

[Joseph Wright]

On 09/03/2016 09:46, Ulrike Fischer wrote:
> Am Wed, 9 Mar 2016 05:41:56 +0100 schrieb Kime Philip:
> 
>> I generally don’t make compat aliases for internals as people
>> shouldn’t be using them anyway and it makes for messy internals.
> 
> The problem is that not everything that package authors needs can be
> access without sometimes using internals. 
> 
> In this case (as far as I can see) the style is trying to test for
> the backend driver (and to call a sourcemap if biber is used). 
> 
> Imho this is something packages should be able to do and so there
> should be a reliable and documented method for package authors.

I'm afraid that looks wrong to me. Either the style should work with
either backend or it should be Biber-only and use \RequireBiber for that
(which is a documented interface).

Joseph