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Tracking issue for release notes of #132833: Stabilize let chains in the 2024 edition

A-edition-2024Area: The 2024 editionArea: The 2024 edition

F-let_chains`#![feature(let_chains)]``#![feature(let_chains)]`

needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.

relnotesMarks issues that should be documented in the release notes of the next release.Marks issues that should be documented in the release notes of the next release.

relnotes-tracking-issueMarks issues tracking what text to put in release notes.Marks issues tracking what text to put in release notes.

T-langRelevant to the language team, which will review and decide on the PR/issue.Relevant to the language team, which will review and decide on the PR/issue.

Status: Open.

#139951 In rust-lang/rust;

· rustbot opened on Apr 17, 2025

 ·  

1.88.0

Missed optimization: states guarenteed after first iteration of loop

C-optimizationCategory: An issue highlighting optimization opportunities or PRs implementing suchCategory: An issue highlighting optimization opportunities or PRs implementing such

F-let_chains`#![feature(let_chains)]``#![feature(let_chains)]`

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#134667 In rust-lang/rust;

· SuperSamus opened on Dec 22, 2024

let-chain with missing <code>let</code> in the middle causes multiple confusing errors

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-parserArea: The lexing & parsing of Rust source code to an ASTArea: The lexing & parsing of Rust source code to an AST

D-confusingDiagnostics: Confusing error or lint that should be reworked.Diagnostics: Confusing error or lint that should be reworked.

D-papercutDiagnostics: An error or lint that needs small tweaks.Diagnostics: An error or lint that needs small tweaks.

D-verboseDiagnostics: Too much output caused by a single piece of incorrect code.Diagnostics: Too much output caused by a single piece of incorrect code.

F-let_chains`#![feature(let_chains)]``#![feature(let_chains)]`

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#117977 In rust-lang/rust;

· estebank opened on Nov 16, 2023

let chains testing

F-let_chains`#![feature(let_chains)]``#![feature(let_chains)]`

Status: Open.

#104893 In rust-lang/rust;

· est31 opened on Nov 25, 2022

Non-terminals, e.g. expr, have diverged between parser and macro matcher

A-macrosArea: All kinds of macros (custom derive, macro_rules!, proc macros, ..)Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..)

A-maybe-future-editionSomething we may consider for a future edition.Something we may consider for a future edition.

A-parserArea: The lexing & parsing of Rust source code to an ASTArea: The lexing & parsing of Rust source code to an AST

F-inline_constInline constants (aka: const blocks, const expressions, anonymous constants)Inline constants (aka: const blocks, const expressions, anonymous constants)

F-let_chains`#![feature(let_chains)]``#![feature(let_chains)]`

T-langRelevant to the language team, which will review and decide on the PR/issue.Relevant to the language team, which will review and decide on the PR/issue.

Status: Open.

#86730 In rust-lang/rust;

· pnkfelix opened on Jun 29, 2021