--- title: SIMDjson 5.0 Released: Still Making JSON Parsing Even Faster description: SIMDjson 5.0 has been released, continuing the project's focus on high-performance JSON parsing using SIMD instructions like AVX-512. The new version promotes... canonical: https://daily.dev/posts/simdjson-5-0-released-still-making-json-parsing-even-faster-8dkdo84rs twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: SIMDjson 5.0 Released: Still Making JSON Parsing Even Faster | daily.dev og:description: SIMDjson 5.0 has been released, continuing the project's focus on high-performance JSON parsing using SIMD instructions like AVX-512. The new version promotes... og:url: https://daily.dev/posts/simdjson-5-0-released-still-making-json-parsing-even-faster-8dkdo84rs og:image: https://api.daily.dev/og/posts/8DkDO84Rs.png og:image:alt: SIMDjson 5.0 Released: Still Making JSON Parsing Even Faster 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. # SIMDjson 5.0 Released: Still Making JSON Parsing Even Faster **[Phoronix](https://daily.dev/sources/phoronix)** · 1 min read · 0 upvotes · 0 comments ## Summary SIMDjson 5.0 has been released, continuing the project's focus on high-performance JSON parsing using SIMD instructions like AVX-512. The new version promotes static reflection support to an officially supported feature, improves handling of big integer numbers, and adds various smaller features and performance optimizations. Independent benchmarking against the prior 4.6.4 release shows decent additional performance gains on top of years of prior SIMDjson optimizations. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What's new in SIMDjson 5.0 compared to previous versions? SIMDjson 5.0 promotes static reflection support to an officially supported feature and improves handling of big integer numbers, alongside numerous smaller features and performance optimizations. Independent benchmarks comparing it against the prior 4.6.4 release show decent additional performance gains on top of years of prior SIMD-based optimizations for JSON parsing. _Teams evaluating faster JSON parsing libraries can track releases like this one on daily.dev._ ### Does SIMDjson use AVX-512 instructions for JSON parsing? Yes, SIMDjson began making use of AVX-512 instructions years before version 5.0 to deliver large performance gains in JSON parsing speed. This SIMD-based approach has continued to be refined across subsequent releases, including the 5.0 release, to push JSON parsing performance further. _Developers tuning parsing-heavy workloads follow SIMD-driven library updates like this via daily.dev._ ## Similar posts on daily.dev - [Simdjson Shows More Speed-Ups Possible For SIMD In JSON Parsing: Another 30% Boost](https://daily.dev/posts/simdjson-shows-more-speed-ups-possible-for-simd-in-json-parsing-another-30-boost-gm3xesadz) · Phoronix · 0 upvotes · 0 comments - [Optimizing Ruby's JSON, Part 8](https://daily.dev/posts/optimizing-ruby-s-json-part-8-shvmzrvw8) · RUBYLAND · 1 upvotes · 0 comments --- Tags: [#performance](https://daily.dev/tags/performance), [#c++](https://daily.dev/tags/c++) [View this post on daily.dev](https://daily.dev/posts/simdjson-5-0-released-still-making-json-parsing-even-faster-8dkdo84rs) ```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":"SIMDjson 5.0 Released: Still Making JSON Parsing Even Faster","url":"https://daily.dev/posts/simdjson-5-0-released-still-making-json-parsing-even-faster-8dkdo84rs","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/simdjson-5-0-released-still-making-json-parsing-even-faster-8dkdo84rs"},"datePublished":"2026-09-28T19:08:30.636Z","dateModified":"2026-09-28T19:11:08.856Z","description":"SIMDjson 5.0 has been released, continuing the project's focus on high-performance JSON parsing using SIMD instructions like AVX-512. 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