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llvm_21

Collection of modular and reusable compiler and toolchain technologies

llvm.org llvm_21 6 releases newest changed 10 days ago

version21.1.8 attributellvm_21 rev

aarch64-darwin 419fe0f449b3fbe3bdd53d9840288db4509ec32e 2026-09-28

aarch64-linux 419fe0f449b3fbe3bdd53d9840288db4509ec32e 2026-09-28

x86_64-darwin b3c092d3c36d91e2f61f3dfb39a159f180a56659 2026-06-22

x86_64-linux 419fe0f449b3fbe3bdd53d9840288db4509ec32e 2026-09-28

systems✓ aarch64-darwin✓ aarch64-linux✓ x86_64-darwin✓ x86_64-linux

$ devbox add llvm_21@21.1.8

$ nix shell github:NixOS/nixpkgs/419fe0f449b3fbe3bdd53d9840288db4509ec32e#llvm_21  # aarch64-darwin

$ nix shell github:NixOS/nixpkgs/419fe0f449b3fbe3bdd53d9840288db4509ec32e#llvm_21  # aarch64-linux

$ nix shell github:NixOS/nixpkgs/b3c092d3c36d91e2f61f3dfb39a159f180a56659#llvm_21  # x86_64-darwin

$ nix shell github:NixOS/nixpkgs/419fe0f449b3fbe3bdd53d9840288db4509ec32e#llvm_21  # x86_64-linux

JSON: /v2/resolve?name=llvm_21&version=latest

Releases

newest first, as /v2/pkg orders them

Version	arm mac	arm linux	x86 mac	x86 linux	Attribute	Commit	Date	Outputs
21.1.8resolved	✓	✓	✓	✓	`llvm_21`	varies	2026-09-18	out, dev, lib, python
21.1.7	✓	–	✓	–	`llvm_21`	varies	2026-01-22	out (macOS only), dev (macOS only), lib (macOS only), python (macOS only)
21.1.2	✓	–	✓	–	`llvm_21`	varies	2025-12-29	out (macOS only), dev (macOS only), lib (macOS only), python (macOS only)
21.1.1	✓	–	✓	–	`llvm_21`	63bdb5d90f	2025-10-19	out (macOS only), dev (macOS only), lib (macOS only), python (macOS only)
21.1.0-rc2pre	✓	✓	✓	✓	`llvm_21`	372d9eeeaf	2025-08-12	out, dev, lib, python
21.1.0-rc1pre	✓	✓	✓	✓	`llvm_21`	871381d997	2025-07-29	out, dev, lib, python

Prereleases are listed but latest never picks one. “varies” means each system last changed at a different nixpkgs commit — the release page lists them.

Description

The LLVM Project is a collection of modular and reusable compiler and toolchain technologies. Despite its name, LLVM has little to do with traditional virtual machines. The name "LLVM" itself is not an acronym; it is the full name of the project. LLVM began as a research project at the University of Illinois, with the goal of providing a modern, SSA-based compilation strategy capable of supporting both static and dynamic compilation of arbitrary programming languages. Since then, LLVM has grown to be an umbrella project consisting of a number of subprojects, many of which are being used in production by a wide variety of commercial and open source projects as well as being widely used in academic research. Code in the LLVM project is licensed under the "Apache 2.0 License with LLVM exceptions".