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Bump MSRV to 1.88.0 #18395

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#18403
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Bump MSRV to 1.88.0#18395
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#18403
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enhancementNew feature or requestgood first issueGood for newcomers

Description

@Jefffrey
Jefffrey
opened on Oct 31, 2025

Is your feature request related to a problem or challenge?

Rust 1.91.0 was released today: https://blog.rust-lang.org/2025/10/30/Rust-1.91.0/

Per our MSRV policy we can now upgrade from 1.87.0 to 1.88.0:

datafusion/docs/source/user-guide/introduction.md

Lines 199 to 211 in 41566db

## Rust Version Compatibility Policy
The Rust toolchain releases are tracked at [Rust Versions](https://releases.rs) and follow
[semantic versioning](https://semver.org/). A Rust toolchain release can be identified
by a version string like `1.80.0`, or more generally `major.minor.patch`.
DataFusion supports the last 4 stable Rust minor versions released and any such versions released within the last 4 months.
For example, given the releases `1.78.0`, `1.79.0`, `1.80.0`, `1.80.1` and `1.81.0` DataFusion will support 1.78.0, which is 3 minor versions prior to the most minor recent `1.81`.
Note: If a Rust hotfix is released for the current MSRV, the MSRV will be updated to the specific minor version that includes all applicable hotfixes preceding other policies.
DataFusion enforces MSRV policy using a [MSRV CI Check](https://github.com/search?q=repo%3Aapache%2Fdatafusion+rust-version+language%3ATOML+path%3A%2F%5ECargo.toml%2F&type=code)

Describe the solution you'd like

Bump MSRV here:

datafusion/Cargo.toml

Lines 79 to 80 in 41566db

# Define Minimum Supported Rust Version (MSRV)
rust-version = "1.87.0"

Include a note in upgrade guide.

Make any changes to codebase (let chains are supported now I believe)

Describe alternatives you've considered

No response

Additional context

Previous bump PR: #17724

Also after this is done I believe we can take on edition 2024: #15804

Activity

  1. Jefffrey
    added
    enhancementNew feature or request
    on Oct 31, 2025
  2. Jefffrey
    added the
    Feature
    issue type on Oct 31, 2025
  3. Jefffrey
    added
    good first issueGood for newcomers
    on Oct 31, 2025
  4. siddartha018
    added a commit that references this issue on Oct 31, 2025

    feat: bump MSRV to 1.88.0

    84c0d45

  5. siddartha018 commented on Oct 31, 2025

    @siddartha018
    siddartha018
    on Oct 31, 2025
    Contributor

    @Jefffrey i have fixed the issue . waiting for your review on my pr

  6. github-merge-queue
    added a commit that references this issue on Nov 1, 2025

    Bump MSRV to 1.88.0 (#18403)

    e969500
  7. alamb
    closed this as completedin #18403on Nov 1, 2025
  8. tschwarzinger
    added a commit that references this issue on Nov 2, 2025

    Bump MSRV to 1.88.0 (apache#18403)

    ef0d4e2
  9. codetyri0n
    added a commit that references this issue on Nov 11, 2025

    Bump MSRV to 1.88.0 (apache#18403)

    9c64893
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