--- title: Lesli 5.1 — The Official Release · Ruby on Rails SaaS... description: Lesli 5.1 is the first official stable release of a Ruby on Rails framework designed for building modular, long-term business software. Originally started in... canonical: https://daily.dev/posts/lesli-5-1-the-official-release-ruby-on-rails-saas-development-framework-6zsj6xswt twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Lesli 5.1 — The Official Release · Ruby on Rails SaaS Development Framework | daily.dev og:description: Lesli 5.1 is the first official stable release of a Ruby on Rails framework designed for building modular, long-term business software. Originally started in... og:url: https://daily.dev/posts/lesli-5-1-the-official-release-ruby-on-rails-saas-development-framework-6zsj6xswt og:image: https://api.daily.dev/og/posts/6ZSJ6XsWt.png og:image:alt: Lesli 5.1 — The Official Release · Ruby on Rails SaaS Development Framework 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. # Lesli 5.1 — The Official Release · Ruby on Rails SaaS Development Framework **[Ruby Flow](https://daily.dev/sources/rubyflow)** · 7 min read · 0 upvotes · 0 comments ## Summary Lesli 5.1 is the first official stable release of a Ruby on Rails framework designed for building modular, long-term business software. Originally started in 2014 as a PHP project for small businesses in Guatemala, it was rebuilt in Rails starting in 2019. This release marks the completion of a two-year effort to remove proprietary code, migrate the frontend from a Vue SPA to Hotwire, and open-source the project. Lesli provides a modular architecture using Rails engines, authentication, permissions, audit capabilities, notifications, shared UI components, and reusable business module patterns. It targets developers who want stronger structure for larger Rails applications without abandoning Rails conventions. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Build a SaaS App in Ruby on Rails 8](https://daily.dev/posts/build-a-saas-app-in-ruby-on-rails-8-v0x4qmmzs) · Ruby Flow · 1 upvotes · 0 comments - [Short Ruby Newsletter - edition 160](https://daily.dev/posts/short-ruby-newsletter---edition-160-qik9o6jox) · RUBYLAND · 0 upvotes · 0 comments - [Returning To Rails in 2026](https://daily.dev/posts/returning-to-rails-in-2026-ohsyin4ne) · Lobsters · 1 upvotes · 0 comments - [From Idea to Launch: Why Rails Remains the Ultimate MVP Framework in 2026](https://daily.dev/posts/from-idea-to-launch-why-rails-remains-the-ultimate-mvp-framework-in-2026-w2wfkmtd2) · Saeloun · 0 upvotes · 0 comments --- Tags: [#rails](https://daily.dev/tags/rails), [#hotwire](https://daily.dev/tags/hotwire) [View this post on daily.dev](https://daily.dev/posts/lesli-5-1-the-official-release-ruby-on-rails-saas-development-framework-6zsj6xswt) ```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":"Lesli 5.1 — The Official Release · Ruby on Rails SaaS Development Framework","url":"https://daily.dev/posts/lesli-5-1-the-official-release-ruby-on-rails-saas-development-framework-6zsj6xswt","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/lesli-5-1-the-official-release-ruby-on-rails-saas-development-framework-6zsj6xswt"},"datePublished":"2026-03-29T07:18:44.603Z","dateModified":"2026-03-29T07:19:08.451Z","description":"Lesli 5.1 is the first official stable release of a Ruby on Rails framework designed for building modular, long-term business software. 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