What's New

• Stripe Checkout now opens in the user's current locale.
• Plan intervals like "month" and "year" are translated and pluralized through I18n.
• Remaining hard-coded text, form placeholders, terms links, and invitation copy have moved into locale files.
• The example French locale has been updated to match the English keys.

We've upgraded to Ruby 4.0.3, a maintenance release with several bugfixes. Everything is tested and passing, so it's ready to use.

Rails now supports Minitest 6, so we've removed the version lock and upgraded the test suite.

Jumpstart Pro now includes an AGENTS.md file that explains the app's architecture, commands, and conventions to AI coding tools like Claude Code, Cursor, and Codex. Your agent will understand accounts, billing, and the Jumpstart configuration from the start.

New apps now start with a neutral black and white primary color and neutral gray tones, making it easy to drop in your own brand colors. Check out the theming docs to set your own palette.

We've upgraded to Rails 8.1.3, a maintenance release with several bugfixes. Everything is tested and passing, so it's ready to use.

Jumpstart Pro got a visual refresh!

• Darker dark mode with true dark backgrounds instead of grays.
• Updated buttons with a larger radius, subtle inset shadow, new borders, and focus styles. btn-light has been removed.
• Cleaner layouts with tighter spacing, pricing in the left nav, and CSS grid pricing tables.
• The account menu now links to "Manage accounts".

This touched a lot of views, so if you've overridden any of them it's a good time to compare against the new versions.

We've upgraded to Ruby 4.0.2, a maintenance release with several bugfixes. Everything is tested and passing, so it's ready to use.

We've updated to the latest TailwindCSS which includes some new colors, new utilities, and some performance improvements.

https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.2.0

Referral tracking now uses Refer 1.0, the first stable release of our referral gem.

We've upgraded to Devise 5.0. We've also turned off email confirmation (confirmable) by default since it was a common source of confusion. You can still turn it on if your app needs it.

We've upgraded to Ruby 4.0.1, a maintenance release with several bugfixes. Everything is tested and passing, so it's ready to use.

Rich text embeds now use Jumpstart's own oEmbed lookups instead of a third-party gem, and only providers on an allowlist can be embedded. Embedded scripts are also run through a custom sanitizer, which keeps arbitrary scripts out of your users' content.

Happy holidays! Jumpstart Pro now runs on Ruby 4.0, which was released on Christmas Day. (We also picked up Ruby 3.4.8 along the way.) The full test suite is passing, so it's ready for new apps and upgrades.

We've replaced Trix with Lexxy, the new Action Text editor from 37signals built on Lexical. You get Markdown shortcuts, better paste handling, and code blocks with syntax highlighting.

Lexxy is styled to match Jumpstart out of the box, and your existing Action Text content works without any changes.

New Jumpstart Pro apps now start with a clean slate. Most of Jumpstart's models, views, helpers, mailers, and Madmin resources have moved into the Jumpstart engine, so your app/ folder only contains your own code.

This means far fewer merge conflicts when you pull in upgrades, since you're no longer editing Jumpstart's files directly.

When you do want to customize something, copy it into your app with the new generator:

bin/rails generate jumpstart:override app/views/path/to/file.html.erb

We also trimmed dependencies along the way: the inline_svg and oembed gems have been replaced with lightweight built-in implementations, and the unused fa_icon and language_options helpers have been removed. See UPGRADE.md for generator and diff examples.

Jumpstart Pro now ships with Bundler 4.0. Setup scripts and the Dockerfile call bundle install explicitly, since Bundler 4 no longer runs it when you call plain bundle.

Jumpstart Pro now uses v17 of the Stripe Ruby gem along with the latest release of Pay. We've also updated the one-time payments docs to cover the new return URL behavior.

We've upgraded to Ruby 3.4.7, a maintenance release with several bugfixes. Everything is tested and passing, so it's ready to use.