• Update to proc-macro2 0.3
• Rename => token to FatArrow
• Rename Expr::AddrOf to Expr::Reference for consistency with Type::Reference
• Support crate visibility shorthand in Visibility enum (rust-lang/rust#45388)
• Eliminate runtime dependency on libproc_macro if "proc-macro" feature is disabled (#363, thanks @staktrace)
• Make signature of Lifetime::new consistent with Ident::new
• Parse optional vert at the beginning of a match arm (rust-lang/rust#44101)
• Support nested import syntax (rust-lang/rust#44494)
• Eliminate the unused second type parameter of Punctuated iterators
• Allow inner attributes within impl blocks
• Support for generator movability syntax, static || {/* ... */}
• Accept multiple patterns in if-let and while-let (rust-lang/rust#48215)
• Preserve parentheses around trait bounds; this is important for dyn (rust-lang/rust#49218)