Comments (4)
Also, for whatever it's worth, we did a good amount of testing on a Ruby 2.7.1 / Rails 6.0.3 app on Heroku-20.v38 without issue. In case that's helpful at all.
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@oehlschl Hi! Unfortunately I'm not able to discuss specific timelines, but can give a rough sense of how releases are rolled out.
New stack releases tend to occur in the following stages:
- internal testing
- public beta
- general availability (GA) [ie released and fine for production use, but default stack unchanged so opt-in]
- made the default stack for new apps
For Heroku-18, steps 2-4 were announced here:
https://devcenter.heroku.com/changelog-items/1414
https://devcenter.heroku.com/changelog-items/1453
https://devcenter.heroku.com/changelog-items/1485
Whilst the Heroku-20 docker image is available on Docker Hub (a side effect of how this repo's releases work / we need the image to then generate binaries for buildpacks etc), Heroku-20 isn't yet in beta, or available as a stack to set on apps (the only available stacks are listed at the Dev Center page you mentioned).
Once a Heroku-20 beta is announced, we would recommend waiting for GA before moving production workloads to it. In addition, since Heroku-18 is supported until April 2023, there is no immediate rush to upgrade.
As such, I would proceed with Heroku-18 for now :-)
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Hi @edmorley -- thanks a lot for the response; that's very helpful.
Given the timing on the Heroku-18 announcements, I thought the Heroku-20 announcements might share a similar timeline (May-September), but your answer makes sense.
We'll proceed with Heroku-18 and keep an eye on https://devcenter.heroku.com/changelog.
Thanks!
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Heroku-20 is now available in beta:
https://devcenter.heroku.com/changelog-items/1937
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Related Issues (20)
- ImageMagick default resource limits are surprisingly low HOT 5
- Installation of gettext fails on heroku-20; heroku-18 is fine HOT 5
- Postgres 13
- The Heroku-20-Build Ruby version does not match the Heroku Platform Ruby. HOT 3
- ARM64 support for image HOT 20
- How does one use Heroku-20 stack for local development WITH the same ruby/bundler versions as Heroku defaults to HOT 5
- ImageMagick "area" resource limit should be in pixels ? HOT 3
- `SSL_read: unexpected eof while reading` using `redis-rb` on Heroku-22 HOT 3
- heroku/heroku:22 doesn't download standard library HOT 1
- Stack 22 breaks azure cognitive services package HOT 2
- env PYTHONHOME trigger import error HOT 1
- Deprecated usage of apt-key.
- Add missing CNB Labels
- Update BUILD.md with multi-arch / heroku-24 info
- Duplicate APT sources warning when using APT on Heroku-24 HOT 3
- Reduce size of Heroku-24 run and build images HOT 2
- Heroku-24: Implications of the switch to separate Linux users for build vs run images HOT 10
- Stable tags for heroku/heroku:24 architecture variants HOT 2
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