Bootstrap v4.5.0 has landed with dozens of bug fixes, some small new features, and some changes to our development. Originally planned as a v4.4.2 patch release, we’ve bumped this to a minor release on account of our new features that help bridge the gap between v4 and our upcoming v5.
Highlights
Here’s what you need to know about v4.5.0. Remember that with every minor and major release of Bootstrap, we ship a new URL for our hosted docs to ensure URLs continue to work.
New interaction utilities. Quickly set user-select with the new utilities and Sass map.
New Reboot style for pointer cursors. We now include a role="button" selector in Reboot to set cursor: pointer on non-<button> element buttons.
Examples are now downloadable. We’ve added a script to zip up and offer all our Examples as their own download from the docs.
Saved ~5% from the compressed minified JS builds.
Added guidance to our docs for how to work around our longstanding input group rounded corner bug.
Redesigned docs homepage and navbar to increment us towards v5’s new docs design.
Deprecated bg-gradient-variant mixin as it’s being removed in v5.
Updated to jQuery v3.5.1, Jekyll v4, and dropped Node.js < 10 for development.
While we continue to work on Bootstrap 5, I’ve been jamming away on the Bootstrap Icons library, continuing to create as many icons as time allows. Today marks the third alpha, and massive update to the project. We’ve officially crossed 500 icons!
We’ve cleaned up existing icons, created new permalink pages for each and every icon, and added hundreds of new icons—all in one release.
500+ icons!
I’ve added 221 new icons in our third alpha, the most ever in an alpha release thus far. And while I was drawing all these new awesome icons, I also cleaned up the existing ones by changing their viewBox size and redrew many to ensure more pixel perfect icons.
Why change the viewBox? In the first two alphas, I was drawing icons on 20x20 artboards in Figma. This seemed like a good idea, but every icon was roughly 16x16, so it ended up being dead space. Now, every icon has been updated to eliminate the 2px inner padding, making the viewBoxs 0 0 16 16 instead of 0 0 20 20.
This change has some slight file size improvements, and should help with sizing and positioning as well.
Permalink pages
Looking for a particular icon, but don’t want to download the entire project to snag the SVG source code? Need to send someone a link to an icon? Look no further than the new icon permalink pages!
From the Bootstrap Icons homepage, click any icon and you’ll be taken to a page dedicated to just that icon. It features the icon in various sizes and renders the source code like you’re used to seeing in Bootstrap’s docs.
Since this is still an alpha, some features are still missing from our docs. This includes unlinked tags, no category listing, and no copy to clipboard. I hope to see those added before our stable v1.0.0 release. PRs are very much welcome if you’d like to contribute!
Download
Alpha 3 has been published to GitHub and npm (package name bootstrap-icons). Get your hands on it from GitHub, by updating to v1.0.0-alpha3, or by snagging the icons from Figma.
There’s a brand new update of Bootstrap Icons today with our second alpha release! We’ve updated nearly 20 icons and added over 100 new icons since our last release just a few weeks ago.
New icons
With over 120 new and updated icons, this is likely going to be our largest update before we our first stable release. We have some renamed icons, fixed bugs, new tools icons, new typography icons, tons of new arrows, and so much more.
Highlights
Here’s a summary of what’s been fixed, updated, or renamed in this release. For a full summary of what’s new, head to the GitHub release or Alpha 2 pull request.
Fixed:
Bootstrap icon stroke now 1px instead of 1.5px
tv-fill icon no longer has graphical glitch
circle-slash icon strokes now connect
trash icons now use a single shape
trash-fill icon no longer has a gap between lid and bin
layout-split no longer has space between vertical divide
Updated:
blockquote icons now feature more legible quotation marks
command icon now 1px smaller, no longer sitting on half pixel
gear icons now have rounded corners
eye is now outline by default (use new eye-fill variant if needed)
redrew sound waves on volume icons
corrected (reversed) the direction of backspace icon
Renamed:
changed microphone to mic
existing expand/contract icons are now angle-expand and angle-contract
Get ’em
Alpha 2 has been published to GitHub and npm (package name bootstrap-icons). Get your hands on it from GitHub, by updating to v1.0.0-alpha2, or by snagging the icons from Figma.
In v4.4.0, we added add() and subtract() functions to avoid errors when using zero values in CSS’s built in calc() function. While these functions work as expected with our build system, which is based on node-sass, some alert developers noticed that things broke when using another Sass compiler like Dart Sass or Ruby Sass. To resolve this issue, we’ve tweaked these functions a bit to output what we would expect.
Lastly, we also added a theming fix for some custom forms in a disabled fieldset.
Bootstrap 4 has a new update with a handful of feature changes. We’ve had quite the lengthy pull request to add responsive containers—big thanks to the developers who contribute to Bootstrap for sticking with it and helping us along the way. Nearly all new features will be carried forward into Bootstrap 5, so feel free to start using them now.
Highlights
Here’s what you need to know about v4.4.0. Remember that with every minor and major release of Bootstrap, we ship a new URL for our hosted docs to ensure URLs continue to work.
New responsive containers! Over a year in the making, fluid up to a particular breakpoint, available for all responsive tiers.
New responsive .row-cols classes for quickly specifying the number of columns across breakpoints. This one is huge for those of you who have asked for responsive card decks.
New escape-svg() function for simplifying our embedded background-image SVGs for forms and more.
New add() and subtract() functions for avoiding errors and zero values from CSS’s built in calc feature.
New make-col-auto() mixin to make our .col-auto class available with custom HTML.
Fixed an issue with Microsoft Edge not picking up :disabled styles by moving selectors to [disabled].
Deprecated:bg-variant(), nav-divider(), and form-control-focus() mixins are now deprecated as they’re going away in v5.
Updated our spacing and alignment for modal footer elements like buttons to automatically wrap when space is constrained.
More flexible form control validation styles thanks to fewer chained selectors. Also updated the :invalid validation icon to be an alert instead of an × to avoid confusion with browser functionality for clearing the form field value.
Fixed a couple dozen CSS and JS bugs.
Moved to GitHub Actions for CI/CD! Expect more updates to our CI setup over time here while Actions evolves.
Updated documentation to fix links and typos, improved landmarks for secondary navigation, and a new security doc for guidelines on reporting potential vulnerabilities.
Head to to the v4.4.0 docs to see the latest in action. The full release has been published to npm and will soon appear on the BootstrapCDN and Rubygems.
Say hello to Bootstrap Icons, our very first icon set that’s designed entirely by our team and open sourced for everyone to use, with or without Bootstrap. It’s still in alpha, but we’re incredibly excited to share it with y’all ahead of our v5 alpha.
For the longest time, I’ve wanted to design an icon set to better lean how to better draw with different pen tools and to better understand SVGs. In the last several months I’ve used a few different applications, done nearly five style iterations, and finally settled on a single direction. The result? Over 200 icons to start.
I’ve designed these initial icons in Figma and exported them as SVGs. The plan is to share that Figma file publicly once it’s cleaned up and the icon set is more stable. While Bootstrap Icons are first and foremost designed to work with Bootstrap’s components, they can be used anywhere. They’re an entirely separate project and package from Bootstrap, so you can easily use them in any project, or use any other icon set alongside Bootstrap’s CSS and JavaScript.
They’re also open sourced under the MIT license, so you’re free to download, use, and customize as you need. This is an alpha release for now, so bear with us as we get familiar with creating and managing hundreds of SVGs. and more icons will be added over time.
Today we’re formally announcing our Long Term Support plan, a documented approach aimed at strengthening the stability and frequency of releases. As part of this initiative, each major version of Bootstrap will receive at least six months of support after it is retired, followed by six months of critical bug fixes and security updates.
Starting today, Bootstrap 3 will move to end of life, and will no longer receive critical security updates.
Bootstrap 4 will move to Long Term Support after we release v4.4 and will no longer receive new features from then on. It will continue to receive bug fixes, security updates, and documentation updates.
Bootstrap 5 is under active development. You can follow our progress on GitHub.
A special thanks to @XhmikosR for his tireless work in pushing us forward.
Today we’re shipping Bootstrap v4.3.1 and v3.4.1 to patch an XSS vulnerability, CVE-2019-8331. Also included in v4.3.1 is a small fix to some RFS (responsive font sizes) mixins that were added in v4.3.0.
Earlier this week a developer reported an XSS issue similar to the data-target vulnerability that was fixed in v4.1.2 and v3.4.0: the data-template attribute for our tooltip and popover plugins lacked proper XSS sanitization of the HTML that can be passed into the attribute’s value.
To resolve the issue, we’ve implemented a new JavaScript sanitizer to only allow whitelisted HTML elements in data attribute. You may modify our sanitization implementation to customize the HTML element whitelist, totally disable the sanitization, or pass your own sanitize function (useful if you use your own library). However, for added protection, there is no way to modify the sanitization via data attributes—you must modify these plugin options via the JavaScript API.
In light of this vulnerability, we’re also auditing our security reporting workflows to ensure they’re up to date. This will include steps like adding a SECURITY.md file to our repository and ensuring our private channels and processes are up to date and documented with the team.
Bootstrap v4.3 has landed with over 120 combined closed issues and merged pull requests. This release brings improvements to our utilities, some prep work for moving on to v5’s development, and the standard bug fixes and documentation updates.
During our last release, we shared a small preview of where we’re taking the project next. That’s getting clearer in the coming weeks as our attention turns towards embracing Hugo for ultra fast docs development, removing jQuery in favor of regular JavaScript, and addressing our growing code base.
Keep reading for v4.3 highlights, and see you soon with more details on v5!
Highlights
We’ve added some new utilities and deprecated some unused code. Here are the key changes in v4.3, broken down by new, improved, fixed, and deprecated.
New: Added .stretched-link utility to make any anchor the size of it’s nearest position: relative parent, perfect for entirely clickable cards!
New: Added .text-break utility for applying word-break: break-word
New: Added .rounded-sm and .rounded-lg for small and large border-radius.
New: Added .modal-dialog-scrollable modifier class for scrolling content within a modal.
New: Added responsive .list-group-horizontal modifier classes for displaying list groups as a horizontal row.
Improved: Reduced our compiled CSS by using null for variables that by default inherit their values from other elements (e.g., $headings-color was inherit and is now null until you modifier it in your custom CSS).
Improved: Badge focus styles now match their background-color like our buttons.
Fixed: Silenced bad selectors in our JS plugins for the href HTML attribute to avoid JavaScript errors. Please try to use valid selectors or the data-target HTML attribute/target option where available.
Fixed: Reverted v4.2.1’s change to the breakpoint and grid container Sass maps that blocked folks from upgrading when modifying those default variables.
Fixed: Restored white-space: nowrap to .dropdown-toggle (before v4.2.1 it was on all .btns) so carets don’t wrap to new lines.
Deprecated:img-retina, invisible, float, and size mixins are now deprecated and will be removed in v5.
Head to to the v4.3.x docs to see the latest in action. The full release has been published to npm and will soon appear on the Bootstrap CDN and Rubygems.
Introducing responsive font sizes
Our biggest new addition to Bootstrap in v4.3 is responsive font sizes, a new project in the Bootstrap GitHub org to automate calculate an appropriate font-size based on the dimensions of a visitor’s device or browser viewport. Here’s how it works:
All font-size properties have been switched to the @include font-size() mixin. Our Stylelint configuration now prevents the usage of font-size property.
Disabled by default, you can opt into this new behavior by toggling the $enable-responsive-font-sizes boolean variable.
font-sizes are entirely configurable via Sass. Be sure to read the docs for how to modify the scales, variables, and more.
While responsive font-sizes are disabled by default, we’ve enabled them in the custom CSS that powers our docs starting with v4.3. Please share feedback with us via GitHub issues or on Twitter. We’ve added some light guidance to our Typography docs to explain the feature. You can also learn more by reading the rfs project documentation.
Open Collective
Last December we launched our Open Collective page with our v3.4 release to help support the maintainers contributing to Bootstrap. The team has been very excited about this as a way to be transparent about maintainer costs (both time and money), as well as recognition of efforts.
Branches, Hugo, and jQuery
Right after shipping v4.3, we’ll be tackling a few key changes on our road to active v5 development. These are larger changes to how we maintain and develop Bootstrap and are considered foundational for v5.
Improving our branches for development.master will become our new v3-dev branch. v4-dev will stay as-is, but we’ll cut a new master branch from there to develop v5.
We’re moving to Hugo! Jekyll has been great, but it’s starting to slow us down in local development. We’ll be making changes to our dependencies to support this move, and there’s already a pull request in progress and near completion for the change. Follow along to see what’s changing.
We’re dropping jQuery for regular JavaScript. The cat is out of the bag—we’re dropping our largest client-side dependency for regular JavaScript. Similar to the Hugo move, we’ve been working on this for a long time and have a pull request in progress and near completion.
We’ll have even more to share soon around v5’s plans after we tackle these bigger items. In the meantime, keep the feedback coming on GitHub and Twitter!
Look out world, we’re shipping Bootstrap v4.2.1 with a slew of new features, bug fixes, and docs updates. On the new features side, we have spinners, toasts, switches, and (finally!) touch support in the carousel. That’s just the tip of the iceberg though.
Heads up! v4.2.0 was incorrectly published to npm, so we’ve had to immediately turnaround a v4.2.1 release. npm i bootstrap@latest should now return 4.2.1. Apologies for the inconvenience!
We’ve crammed months of work into v4.2.1 with over 400 commits since our last v4.1.3 release. As mentioned in our v3.4.0 release last week, we’re working to decouple our releases from my direct involvement to improve the shipping cadence. Expect more improvements there in 2019.
Keep reading for highlights and some insight into how we’re getting to v4.3 quickly, and then into v5 (woo!).
What’s new
Here are the highlights of what’s new and updated in v4.2.1.
New: Added new toast component for displaying notifications.
New: Added a new iOS style switch (a modifier class to our custom checkboxes).
New: Added touch support in our carousel component.
New: Added .font-weight-lighter and .font-weight-bolder utilities.
New: Added .text-decoration-none utility class.
New: Added .modal-xl modifier class for our modals.
New: Added new negative margin utility classes (e.g., .mb-n3). These rad new classes not only allow you more control over your general spacing needs, but also allow you to create responsive grid gutters at each breakpoint.
New: Validated form fields now have feedback icons on :invalid and :valid fields. Disable them with the $enable-validation-icons boolean Sass variable (defaults to true).
Updated: Redesigned the custom checkboxes and radios for more obvious states.
Updated:bootstrap-grid.css now includes our margin and padding utilities for full control of our grid system.
Updated: Changed auto columns (e.g., .col-auto) from max-width: none to max-width: 100% to prevent content from causing a column to overflow the parent.
Updated: Improved rendering of custom selects, ranges, file input, and more.
Checkout the full v4.2.0 ship list and GitHub project for the full details. Up next is v4.3 with some bugfixes, a few new modifier classes and variables, and some new utilities.
Head to the v4.2 docs to see the latest in action. The full release has been published to npm and will soon appear on the Bootstrap CDN and Rubygems.
What’s next
We have v4.3 already planned, so that’s our immediate focus. However, while we’re developing that in the v4-dev branch, we’ll be getting our plans in order for a v5 release.
Bootstrap 5 will not feature drastic changes to the codebase. While I tweeted about the earnestness to move to PostCSS years ago, we’ll still be on Sass for v5. Instead, we’ll focus our efforts on removing cruft, improving existing components, and dropping old browsers and our jQuery dependency. There are also some updates to our v4.x components we cannot make without causing breaking changes, so v5 feels like it’s coming at the right time for us.
Stay tuned for a preview of the plans for v5 in the new year. We’ll share via an issue, ask for feedback, and then settle in to development mode.
Happy holidays, and happy new year to everyone! Thanks for continuing to make Bootstrap an amazing project and community.
@mdo
May 12, 2020
