CODEWITHSUNDEEP
ruby-on-rails-3herokurubygemsruby-on-rails-3.1
B Seven
B Seven

Reputation: 45943

When to update production app to Rails 3.1?

I see that some people are updating their apps to Rails 3.1. When is the best time to update a production app? As soon as it is released? When the next stable version is released? A major release like Rails 4?

Currently running 3.07 app on Heroku.

Thanks.

EDIT: Yes, running Ruby 1.92p180.

Upvotes: 4

Views: 124

Answers (2)

Michael Durrant
Michael Durrant

Reputation: 96484

Tests definitely.

The answer also depends on a lot of other factors about your setup such as:

  • What is your current testing stratgey? Do you volume test?
  • Do you have a lot of users that would drown your ability to respond if there's an issue?
  • Do you have a failover / fallback strategy/plan if issues arise?
  • What is your backup stratgey and how well do you execute it?
  • How complex is your code and how much custom code is there?
  • How similar are your development / test / production environments?
  • Is there a particular business reason to upgrade now rather than wait a month or two (given that it was just released).
  • Are you running ruby 1.9.2 (almost certainly but has to be checked).
  • Have you planned for staff availability for the downtime/interruption "in case"
  • Have you tested the actual planned move process on test servers to make sure there are no gotchas?

Generally I would wait 2-3 months. Especially so with Rails 3.1 as there were quite a few changes with this 'dot' release, although again tests should help - though that'll depend on their availability and completeness.

Upvotes: 2

Doon
Doon

Reputation: 20232

When all your tests pass.

I normally wait til at least the .1 release to update an existing production app. But i have apps runnig on 3.1 as they where developed using the betas and RCs, and so far no issues.

But seriously when all your tests pass.

Upvotes: 1

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