2026-07-20

Commit: cac0779
Release: 2026-07-20 (v0.3.2981)

New Features

• #22283 early late classification of lifetimes.
• #22791 re-enable auto trait inference.
• #22777 treat library files as truly immutable.
• #22464 hide private fields on hover depending on context.
• #22811 add capture hints to coroutines.
• #22813 add return-outside-of-function diagnostic.

Performance Improvements

• #22862 shrink hir::Expr from 56 to 48 bytes.
• #22860 pack ExprOrPatId when stored and shrink ScopeData.
• #22794 avoid an allocation when converting case in flyimport.

Fixes

• #22634 (first contribution) don't panic when restarting flycheck with an empty handle list.
• #22822 (first contribution) fix panic on functions and proc macros with the same name.
• #22865 (first contribution) respawn proc macro servers after stopping them.
• #22784 don't #[macro_use] the sysroot crates.
• #22861 record expressions in types in ExprScope.
• #22773 resolve non-plain paths in blocks correctly.
• #22747 reimplement the crate_supports_no_std syntactic heuristic.
• #22832 correctly record binding owners in coroutines.
• #22825 respect hover.documentation.enable.
• #22852 eagerly normalize IntoFuture::Output for await.
• #22483 don't assume array destructuring assignments with rest pattern are constant-sized.
• #22857 handle enum variants in next-solver generics.
• #22849 fix syntax-bridge panic when splitting float.
• #22583 update render_const_using_debug_impl for recent standard library changes.
• #22804 don't update existing parent inference results for anonymous consts.
• #22810 stop leaking bound variables from skipped binders.
• #22855 fix InferenceContext:identity_args using the wrong DefId.
• #22827 fix panic on type bounds after macro calls caused by parser recovery.
• #22789 fix invalid pattern_matching_variant lowering due to recovery.
• #22759, #22782 use quote! to avoid some unwrap panics in SyntaxFactory.
• #22792 preserve whitespace from macro inputs in extract_variable.
• #22819 only update the status if the message is different when the client doesn't support experimental/serverStatus.

Internal Improvements

• #22780 remove #[salsa::cycle] support from #[query_group].
• #22814 migrate HirDatabase::borrowck away from #[query_group].
• #22548 add a few more database lifetimes.
• #22534 turn BlockLoc into a tracked struct, take 3.
• #22779 remove the TreeMutator from SourceChangeBuilder.
• #22815 remove manual lifetime extension.
• #22778 split out a session construct.
• #22793 use Result for the lsp_server::Response payload.

See also the changelog post.