[Debian-science-sagemath] Sage 8.4 and Debian buster

[Ximin Luo]

Tobias Hansen:
> On 10/01/2018 05:50 AM, Jerome BENOIT wrote:
>>
>> On 30/09/18 23:03, Tobias Hansen wrote:
>>> On 09/30/2018 05:47 PM, Julien Puydt wrote:
>>>>
>>>> Le 30/09/2018 à 15:19, Tobias Hansen a écrit :
>>>>
>>>>> - I'll upload brial 1.2.4 to experimental soon. (Julien, it seems like you forgot to push the upstream and pristine-tar branches, could you do that please if you have them?)
>>>> Oups... Done!
>>>>
>>> Thanks!
>>>
>>>>> - One needs to rebuild pynac against the singular version in use.
>>>> Is there more to do than the upload you did a few days ago?
>>>>
>>> We have to figure out what to do with singular (upload 4.1.1p2 to experimental or fix the problem otherwise) and then upload pynac 0.7.22 with a dependency on the new singular version to experimental.
>>
>> Singular 4.1.1p3 is in experimental, I guess I can package 4.1.1p2: can we downgrade in experimental ?
>>
>> Jerome
> 
> I don't know. If you want to avoid increasing the epoch you could just try and see if the upload gets rejected.
> 

I think for experimental you will have to use something like 4.1.1p3+actually4.1.1p2, epochs are now discouraged by Policy for "downgrade" purposes, see:

https://www.debian.org/doc/debian-policy/upgrading-checklist.html#version-4-1-5

I'm fairly sure you can upload to unstable a version X even if X < what's in experimental as long as it's > what's in unstable. I'm pretty sure I've done that before with rustc, e.g. uploaded 1.15.1-3 to unstable even though experimental had 1.16.1-1~exp1.

X

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