Version 1.29.2 (2018-10-11)

• Workaround for an aliasing-related LLVM bug, which caused miscompilation.
• The rls-preview component on the windows-gnu targets has been restored.

Version 1.29.1 (2018-09-25)

Security Notes

• The standard library's str::repeat function contained an out of bounds write caused by an integer overflow. This has been fixed by deterministically panicking when an overflow happens.

  Thank you to Scott McMurray for responsibly disclosing this vulnerability to us.

Version 1.29.0 (2018-09-13)

Compiler

• Bumped minimum LLVM version to 5.0.
• Added powerpc64le-unknown-linux-musl target.
• Added aarch64-unknown-hermit and x86_64-unknown-hermit targets.
• Upgraded to LLVM 7.

Libraries

• Once::call_once no longer requires Once to be 'static.
• BuildHasherDefault now implements PartialEq and Eq.
• Box<CStr>, Box<OsStr>, and Box<Path> now implement Clone.
• Implemented PartialEq<&str> for OsString and PartialEq<OsString> for &str.
• Cell<T> now allows T to be unsized.
• SocketAddr is now stable on Redox.

Stabilized APIs

• Arc::downcast
• Iterator::flatten
• Rc::downcast

Cargo

• Cargo can silently fix some bad lockfiles. You can use --locked to disable this behavior.
• cargo-install will now allow you to cross compile an install using --target.
• Added the cargo-fix subcommand to automatically move project code from 2015 edition to 2018.
• cargo doc can now optionally document private types using the --document-private-items flag.

Misc

• rustdoc now has the --cap-lints option which demotes all lints above the specified level to that level. For example --cap-lints warn will demote deny and forbid lints to warn.
• rustc and rustdoc will now have the exit code of 1 if compilation fails and 101 if there is a panic.
• A preview of clippy has been made available through rustup. You can install the preview with rustup component add clippy-preview.

Compatibility Notes

• str::{slice_unchecked, slice_unchecked_mut} are now deprecated. Use str::get_unchecked(begin..end) instead.
• std::env::home_dir is now deprecated for its unintuitive behavior. Consider using the home_dir function from https://crates.io/crates/dirs instead.
• rustc will no longer silently ignore invalid data in target spec.
• cfg attributes and --cfg command line flags are now more strictly validated.