Re: edk2 interface deprecation policy

["Zeng, Star" <star.zeng@intel.com>]

The negative impact is there will be more and more deprecated codes in the project.
We'd better have an exit mechanism for them although some of them may need to be kept for compatibility case by case.


Thanks,
Star
-----Original Message-----
From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Gao, Liming
Sent: Friday, December 1, 2017 9:51 AM
To: Felix Poludov <Felixp@ami.com>; afish@apple.com
Cc: edk2-devel@lists.01.org
Subject: Re: [edk2] edk2 interface deprecation policy

Felix:
  I agree to define the tag to specify the deprecated definition, library and drivers. If so, user can easily know which one is not used any more. But, I think we can still keep them in edk2 project, because they have no negative impact. 

Thanks
Liming
>-----Original Message-----
>From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of 
>Felix Poludov
>Sent: Friday, December 01, 2017 6:12 AM
>To: afish@apple.com
>Cc: edk2-devel@lists.01.org
>Subject: Re: [edk2] edk2 interface deprecation policy
>
>I agree. It would be beneficial to have a mailing list discussion on 
>how to deal with the deprecated item.
>In some cases it would make sense to tag an interface as deprecated, 
>but keep in the code base for a while (6 month?) before actually deleting it.
>
>-----Original Message-----
>From: afish@apple.com [mailto:afish@apple.com]
>Sent: Thursday, November 30, 2017 11:57 AM
>To: Felix Poludov
>Cc: edk2-devel@lists.01.org
>Subject: Re: [edk2] edk2 interface deprecation policy
>
>Felix,
>
>I don't think we have one....
>
>Adding new interfaces does not impact the downstream projects, but 
>depreciating interface can break stuff. Seems like it might at least be 
>a good idea to have a depreciation discussion on the mailing  list. I'm 
>open to other suggestions....
>
>Thanks,
>
>Andrew Fish
>
>> On Nov 30, 2017, at 6:00 AM, Felix Poludov <Felixp@ami.com> wrote:
>>
>> Does edk2 have a policy regarding deprecation of interface definition
>headers?
>> I can see that definition of the UgaDraw protocol that was deprecated 
>> years
>ago (I believe in UEFI 2.0) is still part of the code base; yet, 
>definition of the SMM Communication ACPI Table that was deprecated this 
>year in UEFI 2.6B has already been removed.
>>
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