Bootstrap v5.2.1 is here with fixes from our latest minor release, v5.2. As a patch release, these changes are limited to bug fixes, documentation updates, and some dependency updates.
We’ve also continued to iterate on a few other projects to help folks get up and running with Bootstrap with npm, other JS frameworks, and various build tools. Keep reading to learn more.
Key changes
We’ve updated our calc() functions to work around an apparent bug in postcss-values-parser that prevented our source Sass files from compiling properly when building with React and PostCSS. The fix was to reverse the order of our multiplication inside calc() functions. Be aware you may need to make similar modifications depending on your own customizations.
We’ve also addressed some longstanding issues around button focus and active styling, in particular for checkbox and radio buttons. On mobile devices, input-based buttons have trouble shedding their focus styles. This has been resolved in v5.2.1 with a change from :focus to :focus-visible for our .btns. Now, checkbox and radio buttons no longer change their background-color on :focus-visible and they receive no :hover styling. Regular .btns still have their familiar hover and focus styles.
We debated not including the button focus change in v5.2.1, but felt it was important enough to close several bugs. Let us know what you think and we’ll continue to refine our implementation.
Highlights
In addition to the changes above, we’ve fixed bugs across several components:
Accordion
Update color value to use the $accordion-button-color Sass variable instead of our color contrast function
Buttons
Added a transparent default hover border color CSS variable for buttons to fix a visual regression
.btn-link no longer has a gradient when $enable-gradients is set to true
Forms
Input groups have updated z-index values to ensure proper rendering of validated form fields
Floating labels now reset their text-align to ensure consistent styling
List Groups
Horizontal list groups with only one child now render the correct border-radius
Modified the list-group-item selectors to better support nested imports of Bootstrap’s CSS
Modals
Updated event listeners to ignore clicks on scrollbar clicks, clicks that start inside .modal-dialog but end outside it, and respond to clicks that start and end outside .modal-dialog
Reverted some tooltip plugin updates to prevent issues with selector, dynamic content, and disposed tooltips using title
Fixed trigger: "manual" showing and immediately hiding when calling toggle()
Dependencies
Updated Autoprefixer to fix warnings of the color-adjust property (thanks to @julien-deramond on our team for reporting an issue upstream here)
Docs
Searching our docs on mobile has been improved with the search field now always visible on responsive, narrow viewports
Removed links to and mentions of Slack from across the codebase, as we intend to shutter Slack in favor of GitHub Discussions
Reintroduced proper outline styles for docs code samples and buttons when :not(:focus-visible)
Farewell, Slack!
As mentioned over a month ago, we made the decision to close down our community Slack channel. Slack isn’t great at managing a large scale community and it’s prohibitively expensive as well for a community the size of ours (the Slack was over 45,000 people!). Instead of using Slack or similar tool, we’re encouraging folks to use our Discussions tab on GitHub.
Make sure to checkout (pun intended!) our latest project, the twbs/examples repository! The examples project includes functional demos for all sorts of environments and JS frameworks, with more planned! You can even open every example in StackBlitz and edit them in the browser.
Bootstrap Icons font - Import and compile Sass, Stylelint, PurgeCSS, and our icon font
Have an idea for a new starter example? Feel free to open an issue or pull request!
v4 starter project
We’ve shipped a v2.0.0 update to the twbs/bootstrap-npm-starter project. This release includes Bootstrap v4.6.2, Bootstrap Icons v1.9.1, a new live reload feature for local development, and several dependency updates. This project will remain dedicated to Bootstrap 4 while our twbs/examples repo will focus on v5 and future major releases.
Bootstrap v5.2.0 is finally stable! We’ve ironed out more bugs, improved more documentation, written new guides and built out new functional environment examples, and so much more!
Keep reading for highlights from both beta and stable releases.
Docs redesign
As previewed in our beta release, the docs have been redesigned! It starts with our new homepage where we have a more complete representation of Bootstrap’s features and an updated design.
The docs sidebar navigation has been overhauled to have always expanded groups for easier browsing, a brand new DocSearch experience with search history, and new responsive offcanvas drawers for both sidebar and navbar on mobile.
We even updated our version picker in the navbar to cross-link between minor releases!
Updated buttons and inputs
With our docs redesign, we refreshed buttons and inputs with modified padding and border-radius. Here’s a look at the before and after of our buttons:
Tons of new CSS variables
Nearly all our components now have CSS variables for real real-time customization, easier theming, and (soon) color mode support starting with dark mode. You can see what CSS variables are available on every docs page, like our buttons:
Values for virtually every CSS variables are assigned via Sass variable, so customization via CSS and Sass are both well supported. Also included for several components are examples of customizing via CSS variables.
New _maps.scss
Bootstrap v5.2.0 introduced a new Sass file with _maps.scss that pulls out several Sass maps from _variables.scss to fix an issue where updates to an original map were not applied to secondary maps that extend it. It’s not ideal, but it resolves a longstanding issue for folks when working with customized maps.
For example, updates to $theme-colors were not being applied to other maps that relied on $theme-colors (like the $utilities-colors and more), which created broken customization workflows. To summarize the problem, Sass has a limitation where once a default variable or map has been used, it cannot be updated. There’s a similar shortcoming with CSS variables when they’re used to compose other CSS variables.
This is also why variable customizations in Bootstrap have to come after @import "functions";, but before @import "variables"; and the rest of our import stack. The same applies to Sass maps—you must override the defaults before they get used. The following maps have been moved to the new _maps.scss:
$theme-colors-rgb
$utilities-colors
$utilities-text
$utilities-text-colors
$utilities-bg
$utilities-bg-colors
$negative-spacers
$gutters
Your custom Bootstrap CSS builds should now look like this with a separate maps import.
// Functions come first
@import "functions";
// Optional variable overrides here
+ $custom-color: #df711b;
+ $custom-theme-colors: (
+ "custom": $custom-color
+ );
// Variables come next
@import "variables";
+ // Optional Sass map overrides here
+ $theme-colors: map-merge($theme-colors, $custom-theme-colors);
+
+ // Followed by our default maps
+ @import "maps";
+
// Rest of our imports
@import "mixins";
@import "utilities";
@import "root";
@import "reboot";
// etc
New helpers and utilities
We’ve updated our helpers and utilities to make it easier to quickly build and modify custom components:
Added new .text-bg-{color} helpers. Instead of setting individual .text-* and .bg-* utilities, you can now use the .text-bg-* helpers to set a background-color with contrasting foreground color.
Expanded border-radius utilities to include two new sizes, .rounded-4 and .rounded-5, for more options.
Expect more improvements here as v5’s development continues.
Responsive offcanvas
Our Offcanvas component now has responsive variations. The original .offcanvas class remains unchanged—it hides content across all viewports. To make it responsive, change that .offcanvas class to any .offcanvas-{sm|md|lg|xl|xxl} class.
In addition, we’ve turned every one of those guides into a fully functioning example in our new twbs/examples repo. We’ve even added a couple more examples to the repo, with plans to create even more.
Each guide matches up to a new example in that repo, and nearly all of them can be immediately available in StackBlitz. Now you don’t even need to have a development environment configured on your computer to get started with Bootstrap.
And did we mention that nearly all our code snippets now have an open in StackBlitz button?
And more!
Introduced new $enable-container-classes option. — Now when opting into the experimental CSS Grid layout, .container-* classes will still be compiled, unless this option is set to false. Containers also now keep their gutter values.
Thicker table dividers are now opt-in. — We’ve removed the thicker and more difficult to override border between table groups and moved it to an optional class you can apply, .table-group-divider. See the table docs for an example.
Scrollspy has been rewritten to use the Intersection Observer API, which means you no longer need relative parent wrappers, deprecates offset config, and more. Look for your Scrollspy implementations to be more accurate and consistent in their nav highlighting.
Added .form-check-reverse modifier to flip the order of labels and associated checkboxes/radios.
Added striped columns support to tables via the new .table-striped-columns class.
After several months, we’ve finally shipped Bootstrap v4.6.2, one of our last releases for the v4. It’s a bit of a maintenance patch featuring bug fixes, dependency updates, and some docs updates.
First, we’ve added an example to our Collapse plugin docs to show how to use horizontal collapsing. This has long been possible via our JS, but we never had an official class to utilize it.
Second, we’ve replaced the deprecated color-adjust with print-color-adjust in our Sass files as part of the Autoprefixer v10.4.6 issues. This should quiet the issues folks have seen from that dependency change. If you’re using our distribution CSS files, like bootstrap.min.css, you may still see the warning.
Beyond that, we’ve addressed a few other things:
Tweaked the size of small and .small to compute to a whole pixel value (was 12.8px and now is 14px).
Improved accessibility around our dropdowns, color contrast, and role attributes.
Fixed some broken links to supporting documentation.
From here, we don’t expect to ship any meaningful updates to v4.6.x other than major security or dependency updates. Everything will focus on v5 and beyond after this release, starting with the stable release of v5.2.0. Bootstrap 4 will officially end of life January 1, 2023, though you’re obviously welcome to continue using it longer than that. Follow our release repo to stay in the loop on release maintenance status.
Bootstrap Icons v1.9.0 is here with over 140 new and updated icons, including some longstanding requests for new brands, transportation options, numbers and letters, and so much more. With this release, we’re now at over 1,800 icons!
140+ new icons
Here’s a quick look at all the new icons in v1.9.0:
Tons of new brand icons including popular browsers, Ubuntu, Google Play, Android, Dropbox, and many more.
New transportation icons including cars, trains, planes, fuel, and common road signs.
New number and letter icons for 1-9, R, C, CC, H, and P (for use cases like registered trademark, copyright, Creative Commons, hospital or helicopter, and parking).
New medical icons for prescriptions, pills, and viruses.
New keyboard icons for tab and escape.
New Universal Access cions.
Redrawn cup icon, now with a steam variant for hot beverages.
Fire, finally!
There are a handful more in there as well, so have a look and put them to use in your next update! In addition, we’ve updated our docs to include mention of Composer installs.
Looking for more new icons? Head to the issue tracker to check for open requests or submit a new one.
The Figma file is now published to the Figma Community! It’s the same Bootstrap Icons Figma file you’ve seen from previous releases, just a little more accessible to those using the app.
Bootstrap v5.2.0-beta1 added a slew of CSS custom properties, or CSS variables, across the :root level and all our core components. Here’s a quick look at how you can utilize them in your projects.
With CSS variables, you can now customize Bootstrap easier than ever, and without the need for a CSS preprocessor. All the power of Sass is still there behind the scenes, but CSS variables adds a ton of power for the future. Use and compose new values, updates styles globally without recompiling, set fallback values, setup new color modes, and more.
Let’s dig in.
CSS variables?
Their official name is custom properties, but they’re often referred to as CSS variables thanks to their most immediate use case for setting specific values. Consider reading the MDN CSS custom properties article or the CSS Tricks guide if you need a primer.
In a nutshell, CSS variables allow you to name frequently used values. For example, instead of writing #6f42c1 everywhere, you can set --purple: #6f42c1. Then you can use that variable later on with the var() function.
We use CSS variables in Bootstrap to set many property values globally, across our components, and in some of our utilities.
Groups of variables
When we talk about CSS variables in Bootstrap, we’re referring to three major groups:
Root variables — Globally scoped variables available on the :root element (<html> usually) and accessible by any element throughout the DOM.
Component variables — Variables scoped specifically to each component, usually on the component’s base class, and their modifier classes and Sass mixins.
Utility variables — Used as modifiers within other utility classes.
Regardless of where they are, all of our CSS variables are prefixed with --bs-, so you know where they’re coming from and how they might be used across codebases that mix Bootstrap’s CSS with additional custom styles. You’ll also notice that we don’t put all our component variables at the root level. This keeps CSS variables scoped to their intended use cases and prevents polluted variables in the global :root scope.
It’s also worth mentioning two larger efforts that are still to come around CSS variables:
Adding CSS variables to all our forms
Adding more nuanced global theme variables and support for color modes like dark mode.
These are likely coming in v5.3.0 (our next minor release after v5.2.0 stabilizes), so in the mean time, check out the GitHub repo to see how things are shaping up.
Root variables
Bootstrap has a ton of root variables and we’ll only be adding more in future updates for the aforementioned color mode support. As of this post, we have the following CSS variables on the :root element:
Colors — All named colors, gray colors, and theme colors. This also includes all our $theme-colors in their rgb format.
Body font styles — Everything from font-size to color and more, all applied to our <body> element.
Shared properties — For property-value pairings that we consider theme specific, like link colors and border styles.
Root CSS variables are used extensively across other parts of Bootstrap to allow you to easily override our default styles at a global level. For example, if you wanted to adjust the default border-radius and link color for our components, you could override a couple variables instead of writing new selectors.
Without CSS variables, you’d have to use a preprocessor like Sass or write new selectors for every instance of these properties across all components. The former is relatively easy, the latter not so much. CSS variables help solve that.
Component variables
On our components, CSS variables get even more power for customizing. Nearly everything under the Components section in our docs sidebar now has CSS variables available to you:
Scrollspy and close button have no relevant CSS variables, so they’re excluded here.
Throughout our documentation you’ll find examples of customizing our default components by overriding their CSS variables. One great example comes from our own docs where we write our own button styles to create a purple button.
Another great example is from our tooltips. You can add custom classes to tooltips and popovers in Bootstrap with data-bs-custom-class="custom-tooltip". Then, with one CSS variable, you can change the tooltip background and arrow color.
There are dozens of CSS variables in play across our components. All of them are referenced in a new section on the relevant docs page. For example, here are our modal CSS variables. This is in addition to all the Sass variables, mixins, loops, and maps used for each component.
Utility variables
Not every utility class uses CSS variables, but the ones that do gain a good amount of power and customization. Background, border, and color utilities all have what we call “local CSS variables” to improve their usefulness. Each of them uses CSS variables to customize the alpha transparency value of rgba() colors.
Consider our background color utilities, .bg-*. By default each utility class has a local variable, --bs-bg-opacity with a default value of 1. To change the background utility alpha value, you can override that value with your own styles, or some new .bg-opacity-* utilities.
Here’s how .bg-success looks with all our .bg-opacity-* classes applied:
And the same is available for border color opacity (--bs-border-opacity and .border-opacity-*) and text color opacity (--bs-text-opacity and .text-opacity-*). So many color options are now available with these utilities.
By default, we ship with five values for these various opacity utilities.
Expect more CSS variables to make their way into our utilities. There’s a lot of power in real-time customization, even for what we consider immutable styles.
Ready to get started with Bootstrap? Checkout the quick start guide so you can put these new CSS variables to work in your next project!
The Figma file is now published to the Figma Community! It’s the same Bootstrap Icons Figma file you’ve seen from previous releases, just a little more accessible to those using the app.
It’s the biggest release since v5 itself—Bootstrap v5.2.0-beta1 is here! This release features redesigned docs, CSS variables for all our components, responsive offcanvas, new helpers and utilities, refined buttons and inputs, and lots of improvements under the hood.
Given the size of the update and time since our last release, we’re doing something different and shipping it as a beta first. Keep reading for details.
Why so long?
I want to start by acknowledging the time it’s taken to ship a new release. As an open source maintainer, I’m constantly worried about not doing or being good enough of a developer for my projects. Pair that with a distributed team all working through this pandemic and me having a heart attack, we’ve all needed some down time. I managed to put together a Bootstrap Icons release with what energy I had before needing another break. The rest of the team has also needed some well deserved down time.
I ask that you all please take some time to send some appreciation and support to your favorite open source maintainers. Everyone could use a little more love in this work.
All that said, we’re shipping v5.2.0-beta1 first since it’s been so long—we’d love your help testing things out. We’ll follow up with a stable release as soon as possible.
Okay, now onto the good parts!
Redesigned docs
Another release, another docs refresh! From the get go, you’ll notice our Bootstrap Purple™ is much more vibrant now, making everything feel brand new. We’ve rewritten our entire homepage to better show off all the awesome features of Bootstrap.
Stepping into the actual docs, you’ll notice quite a few changes. We’ve streamlined our navbar, done away with our subnav, and changed the sidebar to always show every page link for greater discoverability. Show above is also our refreshed quick start guide, which is now a step-by-step instructional guide for using Bootstrap via CDN.
The refreshed navbar also has a long-awaited new version picker for v5.2.0 and beyond. From any page, click the version and see options to navigate to previous minor releases of that same page. When a page doesn’t exist in an older release, you’ll see a disabled version in the dropdown. We currently have no plans to link pages across major versions.
The docs search is now powered by the latest version of Algolia’s DocSearch, bringing an improved design that even shows your most recent searches.
Design tweaks
To coincide with our docs redesign, we’ve given our buttons and inputs a slight refresh with some refined border-radius values. It’s a small change, but a welcomed refresh to keep things modern and fresh. Here’s a look at the before and after of our buttons:
With this release, all our components now include CSS variables to enable real-time customization, easier theming, and (soon) color mode support starting with dark mode. Every component page has been updated to include a reference guide of the relevant CSS variables. Take for example our buttons:
Values for virtually every CSS variables are assigned via Sass variable, so customization via CSS and Sass are both well supported. Also included for several components are examples of customizing via CSS variables.
Check out all our components to see how you can customize them to your liking.
New _maps.scss
Bootstrap v5.2.0-beta1 introduces a new Sass file with _maps.scss that pulls out several Sass maps from _variables.scss to fix an issue where updates to an original map were not applied to secondary maps that extend it. It’s not ideal, but it resolves a longstanding issue for folks when working with customized maps.
For example, updates to $theme-colors were not being applied to other maps that relied on $theme-colors (like the $utilities-colors and more), which created broken customization workflows. To summarize the problem, Sass has a limitation where once a default variable or map has been used, it cannot be updated. There’s a similar shortcoming with CSS variables when they’re used to compose other CSS variables.
This is also why variable customizations in Bootstrap have to come after @import "functions";, but before @import "variables"; and the rest of our import stack. The same applies to Sass maps—you must override the defaults before they get used. The following maps have been moved to the new _maps.scss:
$theme-colors-rgb
$utilities-colors
$utilities-text
$utilities-text-colors
$utilities-bg
$utilities-bg-colors
$negative-spacers
$gutters
Your custom Bootstrap CSS builds should now look like this with a separate maps import.
// Functions come first
@import "functions";
// Optional variable overrides here
+ $custom-color: #df711b;
+ $custom-theme-colors: (
+ "custom": $custom-color
+ );
// Variables come next
@import "variables";
+ // Optional Sass map overrides here
+ $theme-colors: map-merge($theme-colors, $custom-theme-colors);
+
+ // Followed by our default maps
+ @import "maps";
+
// Rest of our imports
@import "mixins";
@import "utilities";
@import "root";
@import "reboot";
// etc
New helpers and utilities
We’re continuing to invest in our helpers and utilities to make it easier to quickly build and modify custom components.
Added new .text-bg-{color} helpers. Instead of setting individual .text-* and .bg-* utilities, you can now use the .text-bg-* helpers to set a background-color with contrasting foreground color.
Expanded border-radius utilities to include two new sizes, .rounded-4 and .rounded-5, for more options.
Expect more improvements here as v5’s development continues.
Responsive offcanvas
Our Offcanvas component now has responsive variations. The original .offcanvas class remains unchanged—it hides content across all viewports. To make it responsive, change that .offcanvas class to any .offcanvas-{sm|md|lg|xl|xxl} class.
And tons more!
Introduced new $enable-container-classes option. — Now when opting into the experimental CSS Grid layout, .container-* classes will still be compiled, unless this option is set to false. Containers also now keep their gutter values.
Thicker table dividers are now opt-in. — We’ve removed the thicker and more difficult to override border between table groups and moved it to an optional class you can apply, .table-group-divider. See the table docs for an example.
Scrollspy has been rewritten to use the Intersection Observer API, which means you no longer need relative parent wrappers, deprecates offset config, and more. Look for your Scrollspy implementations to be more accurate and consistent in their nav highlighting.
Added .form-check-reverse modifier to flip the order of labels and associated checkboxes/radios.
Added striped columns support to tables via the new .table-striped-columns class.
Much of the work we’ve done in v5.2.0-beta1 has been in support of adding dark mode to Bootstrap. Yes, it’s finally coming in our next minor release!
We’re adding tons of new global CSS variables, cleaning up docs styles, and better supporting overall customization. Some details and topics being worked on for dark mode:
Do we provide a JS plugin for toggling color modes? Right now we’re just building custom functionality for our docs.
Our current implementation is being built with data-theme selectors which allows explicit color mode switching (via user control vs and system preference) and custom color modes beyond light and dark.
We’re adding quite a few new colors outside $theme-colors to improve subtle UI customization. These are being implemented via :root and [data-theme="{theme}"] selectors for global use.
Bootstrap Icons v1.8.0 is here with over 140 new icons, including dozens of new heart icons ready for Valentine’s Day and dozens of filetype icons. We’re now at almost 1,700 icons and is once again our second largest release. Keep reading to see what’s new.
140+ new icons
Perfect for Valentine’s Day or any other time you need to show a little heart, there are dozens of icons to choose from.
Want to visually show the extensions of your files? There are tons of new options for programming languages, audio and video, images, and more.
Elsewhere we’ve expanded a number of other categories of icons. There are some new medical icons (more are planned), lots of new clipboard icons, additional tools, and more.
Looking for more new icons? Head to the issue tracker to check for open requests or submit a new one.
The Figma file is now published to the Figma Community! It’s the same Bootstrap Icons Figma file you’ve seen from previous releases, just a little more accessible to those using the app.
Bootstrap Icons v1.7.0 is here with 120 new and updated icons, taking us over 1,500 total icons for the project! It’s the largest update since the initial release, so keep reading to see what’s new.
120 new icons
This update was a lot of fun for me—drawing all these tiny computer parts most of all! There are dozens of new computer-related icons for parts, ports, and peripheral devices. There are also several new brand icons, including Meta, and some other fun icons like a new robot head and a boombox.
Looking for more new icons? Head to the issue tracker to check for open requests or submit a new one.
The Figma file is now published to the Figma Community! It’s the same Bootstrap Icons Figma file you’ve seen from previous releases, just a little more accessible to those using the app.
@mdo
October 03, 2022
