[libvirt] Limiting old version back compat for language bindings ?

[Andrea Bolognani]

On Mon, 2019-10-07 at 12:13 +0100, Daniel P. Berrangé wrote:
> Given this is only low/moderate maint cost, I'm tempted to be quite
> generous to applications and say that in January each year, we purge
> support for versions older than 5 years.
> 
> This would imply...
> 
>  - Jan 2020 - purge older than 1.2.12 (Jan 2015)   (Drops Trusty)
>  - Jan 2021 - purge older than 1.3.1  (Jan 2016)
>  - Jan 2022 - purge older than 3.0.0  (Jan 2017)   (Drops Xenial)
>  - Jan 2023 - purge older than 4.0.0  (Jan 2018)
>  - Jan 2024 - purge older than 5.0.0  (Jan 2019)   (drops RHEL-7, Bionic)
>  - Jan 2025 - purge older than 6.0.0  (Jan 2020)

Can't we follow the same policy as the main library? That would make
it more straightforward to reason about. Also note that our CI only
runs jobs on the platforms targeted by the main library, which means
RHEL 6 and Ubuntu 14.04 are out already...

-- 
Andrea Bolognani / Red Hat / Virtualization