--- title: Changelog: Determinate now has a nix-darwin module, plus... description: Determinate Nix versions 3.8.5 and 3.8.6 bring a nix-darwin module for macOS configuration, plus a wave of performance improvements. Key changes include:... canonical: https://daily.dev/posts/changelog-determinate-now-has-a-nix-darwin-module-plus-loads-of-performance-perks-xi5br62zi twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Changelog: Determinate now has a nix-darwin module, plus loads of performance perks | daily.dev og:description: Determinate Nix versions 3.8.5 and 3.8.6 bring a nix-darwin module for macOS configuration, plus a wave of performance improvements. Key changes include:... og:url: https://daily.dev/posts/changelog-determinate-now-has-a-nix-darwin-module-plus-loads-of-performance-perks-xi5br62zi og:image: https://api.daily.dev/og/posts/XI5BR62Zi.png og:image:alt: Changelog: Determinate now has a nix-darwin module, plus loads of performance perks og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Changelog: Determinate now has a nix-darwin module, plus loads of performance perks **[Determinate Systems](https://daily.dev/sources/determinate-systems)** · 5 min read · 0 upvotes · 0 comments ## Summary Determinate Nix versions 3.8.5 and 3.8.6 bring a nix-darwin module for macOS configuration, plus a wave of performance improvements. Key changes include: parallel unpacking of Git cache sources (cutting Nixpkgs import from 11.7s to 3.6s), elimination of thousands of duplicate Nix daemon queries, parallelized garbage collection (cutting nix search from 24.3s to 18.9s), background copying of paths to the store, faster tab completion via offline mode, and a fix for ZFS-related startup stalls. The release also updates the base to upstream Nix 2.30.2 and adopts clang-format for the codebase. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Changelog: Determinate Nix 3.21.7](https://daily.dev/posts/changelog-determinate-nix-3-21-7-spb0ixqhl) · Determinate Systems · 0 upvotes · 0 comments - [Changelog: a new upstream base, GC roots for nix eval, and a faster nix copy](https://daily.dev/posts/changelog-a-new-upstream-base-gc-roots-for-nix-eval-and-a-faster-nix-copy-a9ytihpvx) · Determinate Systems · 0 upvotes · 0 comments - [Changelog: FlakeHub Cache edge routing and a few crash fixes](https://daily.dev/posts/changelog-flakehub-cache-edge-routing-and-a-few-crash-fixes-umodwxeoj) · Determinate Systems · 0 upvotes · 0 comments - [OpenTelemetry tracing for Determinate Nix](https://daily.dev/posts/opentelemetry-tracing-for-determinate-nix-epfdixtwp) · Determinate Systems · 0 upvotes · 0 comments - [Changelog: faster evaluation and FedRAMP cache keys](https://daily.dev/posts/changelog-faster-evaluation-and-fedramp-cache-keys-qbkpwjrox) · Determinate Systems · 0 upvotes · 0 comments --- Tags: [#performance](https://daily.dev/tags/performance), [#nixos](https://daily.dev/tags/nixos) [View this post on daily.dev](https://daily.dev/posts/changelog-determinate-now-has-a-nix-darwin-module-plus-loads-of-performance-perks-xi5br62zi) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Changelog: Determinate now has a nix-darwin module, plus loads of performance perks","url":"https://daily.dev/posts/changelog-determinate-now-has-a-nix-darwin-module-plus-loads-of-performance-perks-xi5br62zi","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/changelog-determinate-now-has-a-nix-darwin-module-plus-loads-of-performance-perks-xi5br62zi"},"datePublished":"2026-07-26T07:48:19.676Z","dateModified":"2026-07-26T07:49:31.225Z","description":"Determinate Nix versions 3.8.5 and 3.8.6 bring a nix-darwin module for macOS configuration, plus a wave of performance improvements. 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