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Update derive_arbitrary to syn 3 and raise MSRV to 1.71 #242

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Merged
fitzgen merged 1 commit into from
Sep 25, 2026
+8 −15
Merged

Update derive_arbitrary to syn 3 and raise MSRV to 1.71 #242

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12 changes: 2 additions & 10 deletions .github/workflows/rust.yml
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Expand Up @@ -30,17 +30,9 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- run: rustup toolchain add 1.63
- name: Downgrade unicode-ident
run: cargo update --package unicode-ident --precise 1.0.22
- name: Downgrade syn
run: cargo update --package syn --precise 2.0.106
- name: Downgrade quote
run: cargo update --package quote --precise 1.0.41
- name: Downgrade proc-macro2
run: cargo update --package proc-macro2 --precise 1.0.103
- run: rustup toolchain add 1.71
- name: Build
run: cargo +1.63 check --lib --all-features
run: cargo +1.71 check --lib --all-features
clippy:
name: Clippy
runs-on: ubuntu-latest
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3 changes: 2 additions & 1 deletion CHANGELOG.md
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Expand Up @@ -8,7 +8,8 @@ Released YYYY-MM-DD.

### Changed

* TODO (or remove section if none)
* Updated `derive_arbitrary` to `syn` 3. This raises the MSRV from 1.63.0 to
1.71.0, which is the MSRV of `syn` 3.

### Deprecated

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2 changes: 1 addition & 1 deletion Cargo.toml
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Expand Up @@ -17,7 +17,7 @@ description = "The trait for generating structured data from unstructured data"
license = "MIT OR Apache-2.0"
repository = "https://github.com/rust-fuzz/arbitrary/"
documentation = "https://docs.rs/arbitrary/"
rust-version = "1.63.0" # Keep in sync with version documented in the README.md
rust-version = "1.71.0" # Keep in sync with version documented in the README.md
include = ["Cargo.toml", "CHANGELOG.md", "LICENSE-MIT", "LICENSE-APACHE", "README.md", "src/**/*.rs", "tests/**/*.rs", "examples/**/*.rs"]

[dependencies]
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2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -124,7 +124,7 @@ impl<'a> Arbitrary<'a> for Rgb {

<!-- NB: Keep this number in sync with the `rust-version` in `Cargo.toml`. -->

This crate is guaranteed to compile on stable Rust **1.63.0** and up. It might
This crate is guaranteed to compile on stable Rust **1.71.0** and up. It might
compile with older versions but that may change in any new patch release.

We reserve the right to increment the MSRV on minor releases, however we will
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4 changes: 2 additions & 2 deletions derive/Cargo.toml
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Expand Up @@ -16,12 +16,12 @@ description = "Derives arbitrary traits"
license = "MIT OR Apache-2.0"
repository = "https://github.com/rust-fuzz/arbitrary"
documentation = "https://docs.rs/arbitrary/"
rust-version = "1.63.0"
rust-version = "1.71.0"

[dependencies]
proc-macro2 = "1.0"
quote = "1.0"
syn = { version = "2", features = ['derive', 'parsing', 'extra-traits'] }
syn = { version = "3", features = ['derive', 'parsing', 'extra-traits'] }

[lib]
proc-macro = true
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