[cip-dev] CIP Core target EOL dates

* [cip-dev] CIP Core target EOL dates
@ 2020-04-09  5:27 punit1.agrawal
  2020-04-09  6:04 ` masashi.kudo
  0 siblings, 1 reply; 5+ messages in thread
From: punit1.agrawal @ 2020-04-09  5:27 UTC (permalink / raw)
  To: cip-dev; +Cc: Daniel Sangorrin, Kazuhiro Hayashi

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Hi,

CIP is planning to support the Kernels + Debian Rootfs combinations
marked with 'x' in the table below.

+----------+----------+-----------+-----------+
|          | Debian 8 | Debian 9  | Debian 10 |
|          |  Jessie  |  Stretch  |  Buster   |
|  Kernel  |          |           |           |
+----------+----------+-----------+-----------+
|   v4.4   |    x     |     x     |           |
+----------+----------+-----------+-----------+
|  v4.19   |          |     x     |     x     |
+----------+----------+-----------+-----------+

So far, the details of when the support is expected to end haven't been
explicitly called out for Core components. It would be good to rectify
this in order to set expectations and gather feedback from the user
community.

In addition, it will be helpful in estimating the required effort and
planning to resource the projects appropriately.

To start the conversation, I would like to propose the following target
EOL dates for each of the supported combination.

Note: All the dates are in YYYY-MM-DD format

+----------+--------------+--------------+--------------+
|          |   Debian 8   |   Debian 9   |  Debian 10   |
|          |    Jessie    |   Stretch    |    Buster    |
|  Kernel  |              |              |              |
+----------+--------------+--------------+--------------+
|   v4.4   |  2025-04-26  |  2026-01-10  |              |
+----------+--------------+--------------+--------------+
|  v4.19   |              |  2027-06-17  |  2019-10-18  |
+----------+--------------+--------------+--------------+

The proposed dates have been calculated as

    earlier of (Kernel, Debian) release date + 10 yrs

The choice of duration (10 yrs) is arbitrary and should be adjusted
based on requirement and available resources. Also, some of the
combinations could be dropped if there are no users for them.

Ideally, the dates for the Core components should be aligned with CIP
maintained kernels but there doesn't seem to be any public documentation
for the CIP kernel EOL dates. Let me know if this is written down
somewhere.

All feedback welcome.

Thanks,
Punit

The relevant Debian[0][1][2] and Kernel[3] release dates are copied
below for reference.

Debian Release Dates
--------------------
Jessie  - 2015-04-26
Stretch - 2017-06-17
Buster  - 2019-07-06

Linux Kernel Release Dates
--------------------------
v4.4  - 2016-01-10
v4.19 - 2018-10-18

[0] https://www.debian.org/releases/jessie/
[1] https://www.debian.org/releases/stretch/
[2] https://www.debian.org/releases/buster/
[3] https://www.kernel.org/category/releases.html

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