huiali/rust-skills/rust-learner

# Check current version
rustc --version
 
# Update Rust
rustup update stable
 
# View changelog
rustup doc --changelog

[package]
rust-version = "1.70"  # Declare minimum version
 
[dependencies]
# MSRV-sensitive dependencies require care
serde = { version = "1.0", default-features = false }

# Quarterly update routine
rustup update stable
cargo outdated
cargo audit
cargo test --all-features
 
# Read release notes
rustup doc --changelog

# Check for breaking changes
cargo update --dry-run
 
# Security audit
cargo audit
 
# License check
cargo deny check licenses
 
# Check dependency tree
cargo tree

// Edition 2024 features
 
// Inline const (1.79+)
const fn compute() -> [u8; 32] {
    let mut arr = [0u8; 32];
    // compute at compile time
    arr
}
 
// Never type improvements (1.82+)
fn diverge() -> ! {
    panic!("never returns")
}
 
// Async fn in trait (1.75+)
trait Repository {
    async fn fetch(&self, id: u64) -> Result<Data, Error>;
}

Basics → Ownership, lifetimes, borrow checker
   ↓
Intermediate → Trait objects, generics, closures
   ↓
Concurrency → async/await, threads, channels
   ↓
Advanced → unsafe, FFI, performance optimization
   ↓
Expert → Macros, type system, design patterns

# Check outdated dependencies
cargo outdated
 
# Update compatible versions
cargo update
 
# Update to latest (may break)
cargo upgrade

# Check for known vulnerabilities
cargo audit
 
# Check dependency licenses
cargo deny check licenses
 
# Analyze dependency tree
cargo tree -d  # Show duplicates

Every 3 months:
- [ ] Upgrade to latest stable Rust
- [ ] Run cargo outdated
- [ ] Run cargo audit
- [ ] Check dependencies for breaking changes
- [ ] Evaluate new features worth adopting
- [ ] Update tooling (clippy, rustfmt)

Every year:
- [ ] Consider edition upgrade
- [ ] Refactor deprecated patterns
- [ ] Evaluate MSRV policy
- [ ] Update development toolchain
- [ ] Review architecture patterns

# Check if upgrade possible
cargo fix --edition
 
# Update Cargo.toml
# edition = "2024"
 
# Test thoroughly
cargo test --all-features

# Check Rust version
rustc --version
rustup show
 
# Update toolchain
rustup update
 
# Check outdated dependencies
cargo outdated
 
# Security audit
cargo audit
 
# License compliance
cargo deny check
 
# Check for deprecated features
cargo clippy -- -W deprecated

# ❌ Avoid: nightly features in production
#![feature(generic_associated_types)]
 
# ✅ Good: wait for stabilization
# Use stable alternatives

# ✅ Good: declare MSRV
[package]
rust-version = "1.70"
 
# Test against MSRV in CI
# cargo +1.70 test

# ✅ Good: read before updating
rustup doc --changelog
 
# Check crate changelogs
cargo info <crate> --version <version>