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[release-0.13.x] Update MSRV to 1.63.0 #487

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[release-0.13.x] Update MSRV to 1.63.0 #487

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matthiasbeyer
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Foe the next 0.13.x release, we need a newer MSRV, because the log dependency does not build with 1.59.0 anymore.

So we update the MSRV here.

@matthiasbeyer
Update MSRV to 1.60.0
d97b904 
For the next 0.13.x release, we need a newer MSRV, because the log
dependency does not build with 1.59.0 anymore.

So we update the MSRV here.

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
@matthiasbeyer
Update MSRV to 1.61.0
dac422e 
For the next 0.13.x release, we need a newer MSRV, because the pest_meta
(transitive) dependency does not build with 1.60.0 anymore.

So we update the MSRV here.

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
@matthiasbeyer matthiasbeyer changed the title [release-0.13.x] Update MSRV to 1.60.0 [release-0.13.x] Update MSRV to 1.61.0 Oct 23, 2023
@matthiasbeyer
Update MSRV to 1.63.0
6f08812 
For the next 0.13.x release, we need a newer MSRV, because the rustix
(transitive) dependency does not build with 1.61.0 anymore.

So we update the MSRV here.

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
@matthiasbeyer matthiasbeyer changed the title [release-0.13.x] Update MSRV to 1.61.0 [release-0.13.x] Update MSRV to 1.63.0 Oct 23, 2023
@matthiasbeyer
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I don't like where this is going...

@matthiasbeyer
Fix clippy: use first() instead of get(0)
afe0b85 
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
(cherry picked from commit 8b2bdfe)
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
@matthiasbeyer matthiasbeyer mentioned this pull request Oct 23, 2023
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@matthiasbeyer
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UUuuh all green now. @ijackson you're welcome to experiment on another solution. If that does not work out, we can merge this PR instead.
But I'll wait for your stuff. And no need to hurry if you cannot get it done tomorrow - I have time! 😆

@polarathene
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I don't like where this is going...

There's a cargo command (third-party IIRC) that can be used to identify the MSRV for a project based on its dependencies I think?

You may want to also manage it in the Cargo.toml as one of my PRs mentioned.

@ijackson
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Instead of this MR, how about the approach I took in #492 ?

@polarathene
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FWIW, cargo-msrv could detect the requirement with dev-dependencies too. It supports providing a custom command such as cargo check --tests. This avoids the approach taken in this PR with incremental bumping until the CI is happy.

The MSRV of many crates during my investigation were averaging around 1.63 / 1.64, others with 1.60. Since @ijackson has an MSRV of 1.65, you could probably consider 1.64 going forward.

1.63 is also apparently what the current Debian stable (Bookworm) release is using, which is an MSRV target for some projects, but Debian is rather slow pace, other crates have an MSRV policy that would / has moved on from that. Less of an issue when they adopt rust-version in Cargo.toml.

I think Cargo.toml can address the current CI issues with a Cargo.lock.msrv file (seems best practice?) and set a 1.56 rust-version.

Nothing else in config-rs for this branch requires raising the MSRV beyond deps and how they're resolved by default, that doesn't really warrant raising rust-version unless you want to update Cargo.toml in a way that'd require it. MSRV policy is different AFAIK, and some CI will use a higher MSRV for running tests (rust-version can still be verified separately).

TL;DR

  • MSRV / rust-version bumping as a response due to implicit dep updates should not be necessary.
  • rust-version is more accurate representation of what the project can build with.
    • Explicit changes to Cargo.toml or project code may require raising rust-version.
    • MSRV bumps are not considered a semver breaking change.
      • Especially when it's inherited from dependencies without adjusting Cargo.toml. That would likewise already affect prior releases that have been published since.
      • Treating as a semver breaking change can cause more issues, as would have been the case with log. rust-version better resolves this concern.
    • Bumping it may be valid if generating / resolving a Cargo.lock becomes unwieldy to maintain.
    • I don't really consider it applicable as a constraint to building examples or running tests, aka dev-dependencies, at least when Cargo.lock is committed.

@polarathene polarathene mentioned this pull request Nov 5, 2023
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@matthiasbeyer
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0.13.x is now no longer the latest release, so I'll close this unmerged. All patchreleases go to 0.14.x now.

@matthiasbeyer matthiasbeyer deleted the release-0.13/update-msrv branch February 1, 2024 06:46
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3 participants
@matthiasbeyer @polarathene @ijackson