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Associate lazy dependencies with steps and only fetch them if those steps are built

zig build systemstd.Build, the build runner, `zig build` subcommand, package managementstd.Build, the build runner, `zig build` subcommand, package management

Status: Open.

#21525 In ziglang/zig;

· marler8997 opened on Sep 26, 2024

<code>local variable is never mutated</code> regression for field and array accesses

bugObserved behavior contradicts documented or intended behaviorObserved behavior contradicts documented or intended behavior

frontendTokenization, parsing, AstGen, Sema, and Liveness.Tokenization, parsing, AstGen, Sema, and Liveness.

regressionIt worked in a previous version of Zig, but stopped working.It worked in a previous version of Zig, but stopped working.

Status: Open.

#25540 In ziglang/zig;

· squeek502 opened on Oct 11, 2025

<code>zig build</code> fails with a <code>dyld</code> error on x86_64 macOS Tahoe

arch-x86_6464-bit x8664-bit x86

bugObserved behavior contradicts documented or intended behaviorObserved behavior contradicts documented or intended behavior

linking

os-macosmacOSmacOS

Status: Open.

#25521 In ziglang/zig;

· kfinn opened on Oct 9, 2025

error(x86_67_encoder): no encoding found for: none mov r64 m128 none none

bugObserved behavior contradicts documented or intended behaviorObserved behavior contradicts documented or intended behavior

frontendTokenization, parsing, AstGen, Sema, and Liveness.Tokenization, parsing, AstGen, Sema, and Liveness.

Status: Open.

#24953 In ziglang/zig;

· InKryption opened on Aug 22, 2025

Cross-compiling from Windows to macOS with <code>-fstrip</code> results in a compiler hang with 0.15.2

bugObserved behavior contradicts documented or intended behaviorObserved behavior contradicts documented or intended behavior

linking

os-windowsMicrosoft WindowsMicrosoft Windows

regressionIt worked in a previous version of Zig, but stopped working.It worked in a previous version of Zig, but stopped working.

Status: Open.

#25598 In ziglang/zig;

· alexrp opened on Oct 16, 2025

Proposal: disallow implicit references to labeled loops in <code>break</code> and <code>continue</code>

proposalThis issue suggests modifications. If it also has the "accepted" label then it is planned.This issue suggests modifications. If it also has the "accepted" label then it is planned.

Status: Open.

#25736 In ziglang/zig;

· mlugg opened on Oct 29, 2025

std.posix AcceptError and ConnectError mismatches since std.Io merge

bugObserved behavior contradicts documented or intended behaviorObserved behavior contradicts documented or intended behavior

regressionIt worked in a previous version of Zig, but stopped working.It worked in a previous version of Zig, but stopped working.

standard libraryThis issue involves writing Zig code for the standard library.This issue involves writing Zig code for the standard library.

Status: Open.

#25767 In ziglang/zig;

· blblack opened on Oct 30, 2025

wasm32-emscripten started to depend on clib thread functions

arch-wasm32-bit and 64-bit WebAssembly32-bit and 64-bit WebAssembly

bugObserved behavior contradicts documented or intended behaviorObserved behavior contradicts documented or intended behavior

os-emscriptenEmscriptenEmscripten

regressionIt worked in a previous version of Zig, but stopped working.It worked in a previous version of Zig, but stopped working.

Status: Open.

#25856 In ziglang/zig;

· floooh opened on Nov 7, 2025

[zig cc] libresolv symbol not found under linux

bugObserved behavior contradicts documented or intended behaviorObserved behavior contradicts documented or intended behavior

frontendTokenization, parsing, AstGen, Sema, and Liveness.Tokenization, parsing, AstGen, Sema, and Liveness.

Status: Open.

#25787 In ziglang/zig;

· michaelortmann opened on Nov 2, 2025

x86_64 regression: <code>@bitCast</code> to bool vectors produces incorrect results

arch-x86_6464-bit x8664-bit x86

backend-self-hosted

bugObserved behavior contradicts documented or intended behaviorObserved behavior contradicts documented or intended behavior

miscompilationThe compiler reports success but produces semantically incorrect code.The compiler reports success but produces semantically incorrect code.

regressionIt worked in a previous version of Zig, but stopped working.It worked in a previous version of Zig, but stopped working.

Status: Open.

#26008 In ziglang/zig;

· IntegratedQuantum opened on Nov 22, 2025