Updated open source "System requirements" table has some inaccuracies and can be improved

[robolmos]

Topic clarification/correction request

Topic Link

https://devdocs.magento.com/guides/v2.4/install-gde/system-requirements.html

Description

System requirements are a bit confusing now. The page says: "This table notes software versions that were officially tested and supported at the time of the Magento version’s release."

M2.4.2 release notes says: "Redis 6.x is now supported. Magento 2.4.x remains compatible with Redis 5.x."

But the system requirements table only shows Redis 6.x. Is M2.4.2 tested against Redis 5.x or only 6.x?

This isn't the only issue, there's a version confusion with Varnish (why does it change from 6.x to 6.5.1 then back), and Elasticsearch versions too.

Possible solutions

I think if Redis 5.x is compat/supported for M2.4.2, it should be noted. If it's not being tested, it should be listed, but with a superscript to say that.

I'm not sure what to do about Varnish. 6.0.x LTS should be the minimum for all of them I think.

Additional information

It'd be nice to know what versions of all requirements are actively being tested in Magento's environment, that way they can be My guess is Cloud's services versions would be the closest for what's actively tested, but I'm not sure.

[m2-assistant]

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[dobooth]

@jeff-matthews Any thoughts here?

[jeff-matthews]

Compatible is not the same as supported. By design, the table only lists tested and supported versions; not compatible versions. I think adding compatible versions in addition to supported might make the table harder to read. I think the point here is that you should use supported and tested versions for optimal results.

I can follow up on the question about Varnish switching between 6.x and 6.5.1. It could be that we just need to replace 6.5.1 with 6.x.

Cc: @chernenm

[jeff-matthews]

Confirmed. Varnish 6.5.1 should be 6.x.

[robolmos]

@jeff-matthews

Compatible is not the same as supported. By design, the table only lists tested and supported versions; not compatible versions. I think adding compatible versions in addition to supported might make the table harder to read. I think the point here is that you should use supported and tested versions for optimal results.
Cc: @chernenm

Alrighty, based on that there's still some improvements for the table.

From the M2.4.2 release notes it says:

1. "Elasticsearch 7.9.x is now supported" -- so the table should be using 7.9 instead of 7.x ?

2. "Magento 2.4.2 has been tested with Varnish 6.4" -- so the table should be using 6.4 instead of 6.x ?

The minor versions for other software that's being tested would be nice to know too. Eg, Redis 6.0.0 or newer like 6.0.7?

Thanks

[jeff-matthews]

@chernenm, I recall discussing this when we were making changes to this page, but ultimately the decision was to avoid minor versions. Based on this feedback, should we reconsider?