Crate features / signature
Feature flags · signature 3.0.0 · from crates.io 2026-10-24
signature features: what each one does, and the line to copy
Short answersignature 3.0.0 has 2 features. Nothing is on by default: turn on what you use. It needs Rust 1.85 or newer.
Pick features
Every feature
| Feature | In default | Turns on |
|---|---|---|
alloc | nothing else (a switch the code checks) | |
rand_core | dep:rand_core |
dep:x turns on the optional dependency x; x/y turns on feature y of dependency x (with ?, only if x is already on).
MSRV history
The minimum Rust version signature declares (rust-version), and the release that changed it:
- 1.6.2 (2022-09-15): Rust 1.56
- 2.2.0 (2023-11-12): Rust 1.60
- 2.3.0-pre.0 (2024-01-09): Rust 1.71
- 2.3.0-pre.2 (2024-01-17): Rust 1.72
- 2.3.0-pre.5 (2025-02-12): Rust 1.81
- 2.3.0-pre.7 (2025-04-20): Rust 1.85
Stuck on an older compiler? Pin the last version that supports it, for example cargo update -p signature --precise <version>, or use resolver 3, which picks compatible versions for you.
More on signature
Real downloads, dependents and alternatives: signature crate data (1.4M real downloads a day, 417 dependents).
docs.rs feature list · crates.io · license Apache-2.0 OR MIT · edition 2024
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