And BTW. airflow/contrib/operators/ecs_operator.py is potentially
already broken multiple times - Every time we release Amazon major
version of provider, it might break if you relied on it being backwards
compatible.

On Thu, Aug 4, 2022 at 12:22 PM Jarek Potiuk <ja...@potiuk.com> wrote:

> Not if you add install `airflow[contrib]` - then it won't break.
>
> On Thu, Aug 4, 2022 at 12:21 PM Ash Berlin-Taylor <a...@apache.org> wrote:
>
>> Looking at the PR I see you are talking specifically about removing
>> airflow/contrib/operators/ecs_operator.py.
>>
>> I disagree with you that this doesn't count as a breaking change.
>>
>> For example, if we remove that file:
>>
>> I have a dag on Airflow 2.3. I upgrade to 2.4. My dag breaks.
>>
>> That is 100% a breaking change to me.
>>
>> -a
>>
>> On Thu, Aug 4 2022 at 11:08:14 +01:00:00, Ash Berlin-Taylor <
>> a...@apache.org> wrote:
>>
>> One question: Are you talking about removing things from airflow.contrib,
>> or things already with in airflow.providers.*?
>>
>> -a
>>
>> On Thu, Aug 4 2022 at 11:55:52 +02:00:00, Jarek Potiuk <ja...@potiuk.com>
>> wrote:
>>
>> Hello everyone,
>>
>> Following the discussion in https://github.com/apache/airflow/pull/25413
>> I have a proposal.
>>
>> Why don't we remove all "contrib" and other Airflow 1.10 deprecated
>> classes to a separate package and add dependency to that package as
>> [contrib] or [deprecated] extra in Airflow - and release one of the
>> next 2.* (2.4/2.5)  airflow versions without those classes ?
>>
>> This should be possible I think (We could do it for all "contrib" easily
>> and for some other individual classes in "operators" and "hooks" that would
>> likely require a little dynamic python magic to not override the folders).
>>
>> There are a number of benefits:
>>
>> 0) lots of old, defunc mostly deprecation code can be removed from the
>> main repo - including lots of tests that verify that.
>>
>> 1) new users would not even know about those classes/contrib - less
>> confusion
>>
>> 2) many of those "contrib" classes are not backwards-compatible with old
>> 1.10 classes already as we had many "major" releases in many providers -
>> so this might be a little misleading for those who are still in 1.10 that
>> they can easily "migrate" without making any changes
>>
>> 3) there are many users who even now use "contrib" and we could use the
>> opportunity to "guide them" into migration. To make it smoother, we could
>> likely implement dynamic attribute checking in packages and raise
>> appropriate instructions to those who still use it and migrate to 2.5 or
>> 2.6 (and they will still have the option to install the "contrib" package).
>> The instructions could be the same as in deprecation messages today (but
>> they would fail in case the "contrib" package is not installed)
>>
>> 4) We give a great tool for admins of Airflow installation. Currently the
>> admins have no tools to force their users to switch-off from using contrib
>> if they still do. But with this one they will simply be able to install
>> airflow without the "contrib" package and the users will have to adapt. We
>> can even provide those "Admins" instructions on how to build your own
>> "contrib" package if you want to do it gradually and ask your users to
>> remove class-by-class or whatever way you want.
>>
>> Technically - we are not breaking SemVer compatibility - you can still
>> get back to the contrib if you install the separate package. So we can do
>> it without bumping Major version
>>
>> WDYT?
>>
>> J.
>>
>>
>>
>>
>>
>>
>>
>>

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