Clarifying supported Rails versions

[smasato]

Current behaviour

The documentation does not state whether versions newer than Rails 6.1 are supported.

dd-trace-rb/docs/GettingStarted.md

Lines 1484 to 1490 in 3860fa7

	**Supported versions**
	| MRI Versions | JRuby Versions | Rails Versions |
	| ------------ | -------------- | -------------- |
	| 2.5 | | 4.2 - 6.1 |
	| 2.6 - 2.7 | 9.2 - 9.3 | 5.0 - 6.1 |
	| 3.0 - 3.2 | 9.4 | 6.1 |

Expected behaviour

The documentation will state whether versions newer than Rails 6.1 are supported.
Or state the minimum version supported.

Steps to reproduce

How does datadog help you?

Environment

• datadog version:
• Configuration block (Datadog.configure ...):
• Ruby version:
• Operating system:
• Relevant library versions:

[delner]

Hi @smasato! Thanks for the question!

Looking at our code/build, it doesn't look like we're testing against newer versions of Rails, hence why the documentation reads this way. It doesn't mean our Rails instrumentation won't work against newer versions (minimum support is version 4), but it does mean we're not tracking feature support/compatibility for Rails versions greater than 6.1.

I can ask our team about expanding our official support. What version of Rails are you using?

[bouwkast]

@smasato we've scheduled work to expand our testing for the latest Rails.

As @delner mentioned, the current state is that our tests for Rails ends with the last major version of 6.1.

We'll update you with the status of this, if the tests for the latest of Rails all pass then it'd be a simple documentation change, but if not, then we'll need to schedule additional time to get official support for v7.

But we'll keep this issue updated for those cases. Thanks again for raising this!

[smasato]

Thank you for your prompt responses, @delner and @bouwkast !

We're currently using Rails 7.0 in our project. It's great to hear that you're planning to expand testing for the latest Rails versions. We'll keep an eye on this issue for any updates.

Thanks again for your support!

[Aqualon]

Rails 6.1 also reached EOL in October and 7.0 will follow in April: https://endoflife.date/rails / https://rubyonrails.org/maintenance