From 4690fc12050611224a69cfa32e60b93a7d910110 Mon Sep 17 00:00:00 2001
From: David Singer <david@ramaboo.com>
Date: Mon, 24 Oct 2016 18:29:36 -0700
Subject: Fixing ruby gem version to 4.0.0.alpha5

---
 docs/getting-started/download.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'docs/getting-started')

diff --git a/docs/getting-started/download.md b/docs/getting-started/download.md
index 448afcad3..a8168d9fa 100644
--- a/docs/getting-started/download.md
+++ b/docs/getting-started/download.md
@@ -55,13 +55,13 @@ Bootstrap's `package.json` contains some additional metadata under the following
 Install Bootstrap in your Ruby apps using [Bundler](https://bundler.io/) (**recommended**) and [RubyGems](https://rubygems.org/) by adding the following line to your [`Gemfile`](https://bundler.io/gemfile.html):
 
 {% highlight ruby %}
-gem 'bootstrap', '~> 4.0.0.alpha3'
+gem 'bootstrap', '~> 4.0.0.alpha5'
 {% endhighlight %}
 
 Alternatively, if you're not using Bundler, you can install the gem by running this command:
 
 {% highlight bash %}
-gem install bootstrap -v 4.0.0.alpha3
+gem install bootstrap -v 4.0.0.alpha5
 {% endhighlight %}
 
 [See the gem's README](https://github.com/twbs/bootstrap-rubygem/blob/master/README.md) for further details.
-- 
cgit v1.2.3


From cb270b182cafc3dfe6d233fcd439602d003e30d5 Mon Sep 17 00:00:00 2001
From: Jonathan <vanillajonathan@users.noreply.github.com>
Date: Tue, 1 Nov 2016 15:37:47 +0100
Subject: Linked to slack

---
 docs/getting-started/best-practices.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'docs/getting-started')

diff --git a/docs/getting-started/best-practices.md b/docs/getting-started/best-practices.md
index c030a5ac6..0bb53b709 100644
--- a/docs/getting-started/best-practices.md
+++ b/docs/getting-started/best-practices.md
@@ -15,4 +15,4 @@ We've designed and developed Bootstrap to work in a number of environments. Here
 - Working with CSS
 - Working with Sass files
 - Building new CSS components
-- Ask in Slack
+- Ask in [Slack](https://bootstrap-slack.herokuapp.com/)
-- 
cgit v1.2.3


From b4dbc69f0edba28ea1a9be4aacb3e9f68c3604a9 Mon Sep 17 00:00:00 2001
From: Bardi Harborow <bardi@bardiharborow.com>
Date: Tue, 8 Nov 2016 23:36:04 +1100
Subject: Fix broken and redirected links.

---
 docs/getting-started/accessibility.md    | 6 +++---
 docs/getting-started/browsers-devices.md | 2 +-
 docs/getting-started/build-tools.md      | 2 +-
 docs/getting-started/contents.md         | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

(limited to 'docs/getting-started')

diff --git a/docs/getting-started/accessibility.md b/docs/getting-started/accessibility.md
index d7ecd8cec..9b2fc37db 100644
--- a/docs/getting-started/accessibility.md
+++ b/docs/getting-started/accessibility.md
@@ -23,7 +23,7 @@ In addition, groups and toolbars should be given an explicit label, as most assi
 
 ## Skip navigation
 
-If your navigation contains many links and comes before the main content in the DOM, add a `Skip to main content` link before the navigation (for a simple explanation, see this [A11Y Project article on skip navigation links](http://a11yproject.com/posts/skip-nav-links)). Using the `.sr-only` class will visually hide the skip link, and the <code>.sr-only-focusable</code> class will ensure that the link becomes visible once focused (for sighted keyboard users).
+If your navigation contains many links and comes before the main content in the DOM, add a `Skip to main content` link before the navigation (for a simple explanation, see this [A11Y Project article on skip navigation links](http://a11yproject.com/posts/skip-nav-links/)). Using the `.sr-only` class will visually hide the skip link, and the <code>.sr-only-focusable</code> class will ensure that the link becomes visible once focused (for sighted keyboard users).
 
 {% callout danger %}
 Due to long-standing shortcomings/bugs in Internet Explorer (see this article on [in-page links and focus order](http://accessibleculture.org/articles/2010/05/in-page-links/)), you will need to make sure that the target of your skip link is at least programmatically focusable by adding `tabindex="-1"`.
@@ -47,10 +47,10 @@ Note that this bug will also affect any other in-page links your site may be usi
 
 When nesting headings (`<h1>` - `<h6>`), your primary document header should be an `<h1>`. Subsequent headings should make logical use of `<h2>` - `<h6>` such that screen readers can construct a table of contents for your pages.
 
-Learn more at [HTML CodeSniffer](https://squizlabs.github.io/HTML_CodeSniffer/Standards/Section508/) and [Penn State's Accessability](http://accessibility.psu.edu/headings).
+Learn more at [HTML CodeSniffer](https://squizlabs.github.io/HTML_CodeSniffer/Standards/Section508/) and [Penn State's Accessability](http://accessibility.psu.edu/headings/).
 
 ## Additional resources
 
 - ["HTML Codesniffer" bookmarklet for identifying accessibility issues](https://github.com/squizlabs/HTML_CodeSniffer)
 - [The A11Y Project](http://a11yproject.com/)
-- [MDN accessibility documentation](https://developer.mozilla.org/en-US/docs/Accessibility)
+- [MDN accessibility documentation](https://developer.mozilla.org/en-US/docs/Web/Accessibility)
diff --git a/docs/getting-started/browsers-devices.md b/docs/getting-started/browsers-devices.md
index 842092ccf..d21024594 100644
--- a/docs/getting-started/browsers-devices.md
+++ b/docs/getting-started/browsers-devices.md
@@ -168,7 +168,7 @@ Confirm the document mode by opening the debugging tools: press <kbd>F12</kbd> a
 
 This tag is included in all of Bootstrap's documentation and examples to ensure the best rendering possible in each supported version of Internet Explorer.
 
-See [this StackOverflow question](https://stackoverflow.com/questions/6771258/whats-the-difference-if-meta-http-equiv-x-ua-compatible-content-ie-edge) for more information.
+See [this StackOverflow question](https://stackoverflow.com/questions/6771258/what-does-meta-http-equiv-x-ua-compatible-content-ie-edge-do) for more information.
 
 ## Internet Explorer 10 in Windows Phone 8
 
diff --git a/docs/getting-started/build-tools.md b/docs/getting-started/build-tools.md
index a6d0593fa..e62961663 100644
--- a/docs/getting-started/build-tools.md
+++ b/docs/getting-started/build-tools.md
@@ -11,7 +11,7 @@ Bootstrap uses [Grunt](http://gruntjs.com) for its CSS and JavaScript build syst
 
 To use our Gruntfile and run our documentation locally, you'll need a copy of Bootstrap's source files, Node, and Grunt. Follow these steps and you should be ready to rock:
 
-1. [Download and install Node](https://nodejs.org/download), which we use to manage our dependencies.
+1. [Download and install Node](https://nodejs.org/download/), which we use to manage our dependencies.
 2. Install the Grunt command line tools, `grunt-cli`, with `npm install -g grunt-cli`.
 3. Navigate to the root `/bootstrap` directory and run `npm install` to install our local dependencies listed in [package.json](https://github.com/twbs/bootstrap/blob/master/package.json).
 4. [Install Ruby][install-ruby], install [Bundler][gembundler] with `gem install bundler`, and finally run `bundle install`. This will install all Ruby dependencies, such as Jekyll and plugins.
diff --git a/docs/getting-started/contents.md b/docs/getting-started/contents.md
index 4f51ef049..682c2310c 100644
--- a/docs/getting-started/contents.md
+++ b/docs/getting-started/contents.md
@@ -25,7 +25,7 @@ bootstrap/
     └── bootstrap.min.js
 {% endhighlight %}
 
-This is the most basic form of Bootstrap: precompiled files for quick drop-in usage in nearly any web project. We provide compiled CSS and JS (`bootstrap.*`), as well as compiled and minified CSS and JS (`bootstrap.min.*`). CSS [source maps](https://developer.chrome.com/devtools/docs/css-preprocessors) (`bootstrap.*.map`) are available for use with certain browsers' developer tools.
+This is the most basic form of Bootstrap: precompiled files for quick drop-in usage in nearly any web project. We provide compiled CSS and JS (`bootstrap.*`), as well as compiled and minified CSS and JS (`bootstrap.min.*`). CSS [source maps](https://developers.google.com/web/tools/chrome-devtools/javascript/source-maps) (`bootstrap.*.map`) are available for use with certain browsers' developer tools.
 
 ## Bootstrap source code
 
-- 
cgit v1.2.3


From 83c8bfa30d4d906ff7f2e37314e99e1098eb9bce Mon Sep 17 00:00:00 2001
From: Mark Otto <markdotto@gmail.com>
Date: Fri, 25 Nov 2016 14:01:06 -0800
Subject: Fixes #21195: Add more table of contents to pages with longer
 contents

---
 docs/getting-started/accessibility.md |  5 +++++
 docs/getting-started/build-tools.md   |  5 +++++
 docs/getting-started/download.md      | 11 ++++++++---
 3 files changed, 18 insertions(+), 3 deletions(-)

(limited to 'docs/getting-started')

diff --git a/docs/getting-started/accessibility.md b/docs/getting-started/accessibility.md
index 9b2fc37db..a13ea286e 100644
--- a/docs/getting-started/accessibility.md
+++ b/docs/getting-started/accessibility.md
@@ -7,6 +7,11 @@ group: getting-started
 
 Bootstrap follows common web standards and—with minimal extra effort—can be used to create sites that are accessible to those using <abbr title="Assistive Technology" class="initialism">AT</abbr>.
 
+## Contents
+
+* Will be replaced with the ToC, excluding the "Contents" header
+{:toc}
+
 ## Component requirements
 
 Some common HTML elements are always in need for basic accessibility enhancements through `role`s and Aria attributes. Below is a list of some of the most frequently used ones.
diff --git a/docs/getting-started/build-tools.md b/docs/getting-started/build-tools.md
index e62961663..a48304ebc 100644
--- a/docs/getting-started/build-tools.md
+++ b/docs/getting-started/build-tools.md
@@ -7,6 +7,11 @@ group: getting-started
 
 Bootstrap uses [Grunt](http://gruntjs.com) for its CSS and JavaScript build system and Jekyll for the written documentation. Our Gruntfile includes convenient methods for working with the framework, including compiling code, running tests, and more.
 
+## Contents
+
+* Will be replaced with the ToC, excluding the "Contents" header
+{:toc}
+
 ## Tooling setup
 
 To use our Gruntfile and run our documentation locally, you'll need a copy of Bootstrap's source files, Node, and Grunt. Follow these steps and you should be ready to rock:
diff --git a/docs/getting-started/download.md b/docs/getting-started/download.md
index a8168d9fa..4a1b74a9b 100644
--- a/docs/getting-started/download.md
+++ b/docs/getting-started/download.md
@@ -7,18 +7,23 @@ group: getting-started
 
 **Bootstrap v{{ site.current_version}}** is available for download in several ways, including some of your favorite package managers. Choose from the options below to snag just what you need.
 
-### Bootstrap CSS and JS
+## Contents
+
+* Will be replaced with the ToC, excluding the "Contents" header
+{:toc}
+
+## Bootstrap CSS and JS
 
 **Download Bootstrap's ready-to-use code to easily drop into your project.** Includes compiled and minified versions of all our CSS bundles (default, flexbox-enabled, grid only, or Reboot only) and JavaScript plugins. Doesn't include documentation or source files.
 
 <a href="{{ site.download.dist }}" class="btn btn-lg btn-bs btn-outline" onclick="ga('send', 'event', 'Getting started', 'Download', 'Download Bootstrap');">Download Bootstrap</a>
 
-### Source files
+## Source files
 **Want to compile Bootstrap with your project's asset pipeline?** Choose this option to download our source Sass, JavaScript, and documentation files. Requires a Sass compiler, [Autoprefixer](https://github.com/postcss/autoprefixer), [postcss-flexbugs-fixes](https://github.com/luisrudge/postcss-flexbugs-fixes), and [some setup]({{ site.baseurl }}/getting-started/build-tools/#tooling-setup).
 
 <a href="{{ site.download.source }}" class="btn btn-bs btn-outline" onclick="ga('send', 'event', 'Getting started', 'Download', 'Download source');">Download source</a>
 
-### Bootstrap CDN
+## Bootstrap CDN
 
 Skip the download and use the Bootstrap CDN to deliver Bootstrap's compiled CSS and JS to your project.
 
-- 
cgit v1.2.3


From b2bf8294a01e41517252f1a1fc2289763bba131b Mon Sep 17 00:00:00 2001
From: Mark Otto <markdotto@gmail.com>
Date: Sat, 26 Nov 2016 18:39:51 -0800
Subject: minor docs content tweaks to fix #18997

---
 docs/getting-started/options.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'docs/getting-started')

diff --git a/docs/getting-started/options.md b/docs/getting-started/options.md
index 81c9c92fc..82d0dfa65 100644
--- a/docs/getting-started/options.md
+++ b/docs/getting-started/options.md
@@ -9,7 +9,7 @@ Customize Bootstrap 4 with our built-in custom variables file and easily toggle
 
 ## Customizing variables
 
-Bootstrap 4 ships with a `_custom.scss` file for easy variable overrides. Copy and paste relevant lines from `_variables.scss` into the custom file and recompile your Sass to change our default values. **Be sure to remove the `!default` flag from override values.**
+Bootstrap 4 ships with a `_custom.scss` file for easy overriding of default variables in `_variables.scss`. Copy and paste relevant lines from `_variables.scss` into the custom file, modify the values, and recompile your Sass to change our default values. **Be sure to remove the `!default` flag from override values.**
 
 For example, to change out the `background-color` and `color` for the `<body>`, you'd do the following:
 
-- 
cgit v1.2.3


From 4c807de7f06b05e1cb47f7fcf2e941b2c0c62f9d Mon Sep 17 00:00:00 2001
From: Mark Otto <markdotto@gmail.com>
Date: Mon, 28 Nov 2016 17:21:48 -0800
Subject: fixes #21072: clarify location of variables file (and avoid linking
 to a file that will be broken depending on the branch name)

---
 docs/getting-started/options.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'docs/getting-started')

diff --git a/docs/getting-started/options.md b/docs/getting-started/options.md
index 82d0dfa65..7fddc9c09 100644
--- a/docs/getting-started/options.md
+++ b/docs/getting-started/options.md
@@ -9,7 +9,7 @@ Customize Bootstrap 4 with our built-in custom variables file and easily toggle
 
 ## Customizing variables
 
-Bootstrap 4 ships with a `_custom.scss` file for easy overriding of default variables in `_variables.scss`. Copy and paste relevant lines from `_variables.scss` into the custom file, modify the values, and recompile your Sass to change our default values. **Be sure to remove the `!default` flag from override values.**
+Bootstrap 4 ships with a `_custom.scss` file for easy overriding of default variables in `/scss/_variables.scss`. Copy and paste relevant lines from there into the `_custom.scss` file, modify the values, and recompile your Sass to change our default values. **Be sure to remove the `!default` flag from override values.**
 
 For example, to change out the `background-color` and `color` for the `<body>`, you'd do the following:
 
-- 
cgit v1.2.3


From ef028ab38332651c60e5692f64c2e85e2bb10606 Mon Sep 17 00:00:00 2001
From: ysds <ysds.code@gmail.com>
Date: Wed, 30 Nov 2016 21:47:57 +0900
Subject: Remove .btn-outline

---
 docs/getting-started/download.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'docs/getting-started')

diff --git a/docs/getting-started/download.md b/docs/getting-started/download.md
index 4a1b74a9b..31e90adf0 100644
--- a/docs/getting-started/download.md
+++ b/docs/getting-started/download.md
@@ -16,12 +16,12 @@ group: getting-started
 
 **Download Bootstrap's ready-to-use code to easily drop into your project.** Includes compiled and minified versions of all our CSS bundles (default, flexbox-enabled, grid only, or Reboot only) and JavaScript plugins. Doesn't include documentation or source files.
 
-<a href="{{ site.download.dist }}" class="btn btn-lg btn-bs btn-outline" onclick="ga('send', 'event', 'Getting started', 'Download', 'Download Bootstrap');">Download Bootstrap</a>
+<a href="{{ site.download.dist }}" class="btn btn-lg btn-bs" onclick="ga('send', 'event', 'Getting started', 'Download', 'Download Bootstrap');">Download Bootstrap</a>
 
 ## Source files
 **Want to compile Bootstrap with your project's asset pipeline?** Choose this option to download our source Sass, JavaScript, and documentation files. Requires a Sass compiler, [Autoprefixer](https://github.com/postcss/autoprefixer), [postcss-flexbugs-fixes](https://github.com/luisrudge/postcss-flexbugs-fixes), and [some setup]({{ site.baseurl }}/getting-started/build-tools/#tooling-setup).
 
-<a href="{{ site.download.source }}" class="btn btn-bs btn-outline" onclick="ga('send', 'event', 'Getting started', 'Download', 'Download source');">Download source</a>
+<a href="{{ site.download.source }}" class="btn btn-bs" onclick="ga('send', 'event', 'Getting started', 'Download', 'Download source');">Download source</a>
 
 ## Bootstrap CDN
 
-- 
cgit v1.2.3


From eb2e1102be0f4641ee3e5c4e7853360d5a04e3d8 Mon Sep 17 00:00:00 2001
From: Mark Otto <markd.otto@gmail.com>
Date: Wed, 21 Dec 2016 20:26:17 -0800
Subject: Flexbox all the time (Drop IE9 support and remove $enable-flex
 option) (#21389)

* remove the $enable-flex variable option

* remove bootstrap-flex.css dist file and it's grunt task

* remove the separate flex css file for docs; it's all the same now

* remove flexbox docs (porting some to the main grid docs in next commit)

* clean up few grid docs bits to simplify copy, start to mention flexbox

* port relevant flexbox-grid.md content to grid.md

- clean up mixins
- update how it works section
- bring over sizing and alignment sections

* remove the $enable-flex from the options.md page

* update lead paragraph to mention flexbox

* update migration to mention loss of ie9 support

* remove mention of flexbox dist file

* clarify IE support

* making a note

* remove flexbox variant mentions from component docs

- updates docs for media object, navs, list group, and cards to consolidate docs
- no more need to callout flexbox variants since it's now the default

* remove $enable-flex if/else from sass files

* remove flex dist files

* update scss lint property order to account for flex properties

* linting

* change to numberless classes for autosizing, wrap in highlighting div

* bump gruntfile and postcss to ie10

* redo intro sections

* rearrange

* phew, redo hella grid docs

- rearrange all the things
- consolidate some bits

* remove reference to flexbox mode

* more border action for demo

* Make some changes to the .card's in .card-deck's to ensure footers align to the bottom
---
 docs/getting-started/best-practices.md   |  1 +
 docs/getting-started/browsers-devices.md | 12 ++++----
 docs/getting-started/download.md         |  2 +-
 docs/getting-started/flexbox.md          | 52 --------------------------------
 docs/getting-started/options.md          |  1 -
 5 files changed, 8 insertions(+), 60 deletions(-)
 delete mode 100644 docs/getting-started/flexbox.md

(limited to 'docs/getting-started')

diff --git a/docs/getting-started/best-practices.md b/docs/getting-started/best-practices.md
index 0bb53b709..0e4792513 100644
--- a/docs/getting-started/best-practices.md
+++ b/docs/getting-started/best-practices.md
@@ -15,4 +15,5 @@ We've designed and developed Bootstrap to work in a number of environments. Here
 - Working with CSS
 - Working with Sass files
 - Building new CSS components
+- Working with flexbox
 - Ask in [Slack](https://bootstrap-slack.herokuapp.com/)
diff --git a/docs/getting-started/browsers-devices.md b/docs/getting-started/browsers-devices.md
index d21024594..6273a0f31 100644
--- a/docs/getting-started/browsers-devices.md
+++ b/docs/getting-started/browsers-devices.md
@@ -94,7 +94,7 @@ Similarly, the latest versions of most desktop browsers are supported.
         <th scope="row">Windows</th>
         <td class="text-success">Supported</td>
         <td class="text-success">Supported</td>
-        <td class="text-success">Supported</td>
+        <td class="text-success">Supported, IE10+</td>
         <td class="text-success">Supported</td>
         <td class="text-success">Supported</td>
         <td class="text-danger">Not supported</td>
@@ -109,9 +109,9 @@ Unofficially, Bootstrap should look and behave well enough in Chromium and Chrom
 
 For a list of some of the browser bugs that Bootstrap has to grapple with, see our [Wall of browser bugs]({{ site.baseurl }}/browser-bugs/).
 
-## Internet Explorer 9 & 10
+## Internet Explorer
 
-Internet Explorer 9 & 10 are also supported, however, please be aware that some CSS3 properties and HTML5 elements are not fully supported.
+Internet Explorer 10+ is supported, however, IE9 down is not. Please be aware that some CSS3 properties and HTML5 elements are not fully supported.
 
 <div class="table-responsive">
   <table class="table table-bordered table-striped">
@@ -144,11 +144,11 @@ Internet Explorer 9 & 10 are also supported, however, please be aware that some
 
 Visit [Can I use...](http://caniuse.com/) for details on browser support of CSS3 and HTML5 features.
 
-## Supporting Internet Explorer 8
+## Supporting Internet Explorer 8-9
 
-As of v4, Bootstrap no longer supports IE8. **If you require IE8 support, we recommend you use Bootstrap 3.** It's still supported by our team for bugfixes and documentation changes, but no new features will be added to it.
+As of v4, Bootstrap no longer supports IE8 or IE9. **If you require IE8-9 support, we recommend you use Bootstrap 3.** It's still supported by our team for bugfixes and documentation changes, but no new features will be added to it.
 
-Alternatively, you may add some third party JavaScript to backfill support for IE8 to Bootstrap 4. You'll need the following:
+Alternatively, you may add some third party JavaScript to backfill support for IE8-9 to Bootstrap 4. You'll need the following:
 
 * [The HTML5 shiv](https://en.wikipedia.org/wiki/HTML5_Shiv)
 * [Respond.js](https://github.com/scottjehl/Respond)
diff --git a/docs/getting-started/download.md b/docs/getting-started/download.md
index 31e90adf0..b85e26fe6 100644
--- a/docs/getting-started/download.md
+++ b/docs/getting-started/download.md
@@ -14,7 +14,7 @@ group: getting-started
 
 ## Bootstrap CSS and JS
 
-**Download Bootstrap's ready-to-use code to easily drop into your project.** Includes compiled and minified versions of all our CSS bundles (default, flexbox-enabled, grid only, or Reboot only) and JavaScript plugins. Doesn't include documentation or source files.
+**Download Bootstrap's ready-to-use code to easily drop into your project.** Includes compiled and minified versions of all our CSS bundles (default, grid only, or Reboot only) and JavaScript plugins. Doesn't include documentation or source files.
 
 <a href="{{ site.download.dist }}" class="btn btn-lg btn-bs" onclick="ga('send', 'event', 'Getting started', 'Download', 'Download Bootstrap');">Download Bootstrap</a>
 
diff --git a/docs/getting-started/flexbox.md b/docs/getting-started/flexbox.md
deleted file mode 100644
index f0acc3dcb..000000000
--- a/docs/getting-started/flexbox.md
+++ /dev/null
@@ -1,52 +0,0 @@
----
-layout: docs
-title: Flexbox
-description: Learn how to enable flexbox support in Bootstrap 4 with the flick of a variable or the swap of a stylesheet.
-group: getting-started
----
-
-Flexbox support has finally come to Bootstrap. Opt-in to the new CSS layout styles with the flick of a variable or the swap of a stylesheet.
-
-## Contents
-
-* Will be replaced with the ToC, excluding the "Contents" header
-{:toc}
-
-## What's included
-
-Flexbox support is available for a number of Bootstrap's components:
-
-- The entire grid system (mixins and predefined classes), which switch from `float`s to `display: flex;`.
-- Input groups, which move from `display: table;` to `display: flex;`.
-- The media component moves from `display: table;` and a number of hacky styles to a simple `display: flex;`.
-
-Vendor prefixes are provided in our compiled CSS with [Autoprefixer](https://github.com/postcss/autoprefixer) via Grunt. Some bugs in IE10-11's Flexbox implementation are worked around via [postcss-flexbugs-fixes](https://github.com/luisrudge/postcss-flexbugs-fixes).
-
-## Why flexbox?
-
-In a nutshell, flexbox provides simpler and more flexible layout options in CSS. More specifically, it provides:
-
-- Easy vertical alignment of content within a parent element.
-- Easy reordering of content across devices and screen resolutions with the help of media queries.
-- Easy CSS-only equal height columns for your grid-based layouts.
-
-All these things are possible outside flexbox, but typically require extra hacks and workarounds to do right.
-
-## How it works
-
-If you're familiar with modifying variables in Sass—or any other CSS preprocessor—you'll be right at home to move into flexbox mode.
-
-1. Open the `_variables.scss` file and find the `$enable-flex` variable.
-2. Change it from `false` to `true`.
-3. Recompile, and done!
-
-Alternatively, if you don't need the source Sass files, you may swap the default Bootstrap compiled CSS with the compiled flexbox variation. [Head to the download page]({{ site.baseurl }}/getting-started/download/) for more information.
-
-## Browser support
-
-Enabling flexbox means **reduced browser and device support:**
-
-- Internet Explorer 9 and below do not support flexbox.
-- Internet Explorer 10 has a few known quirks (see the "Known issues" tab in [Can I use...](http://caniuse.com/#feat=flexbox)), requires using a prefix, and only supports the syntax from the old 2012 version of the spec.
-
-Please be extra conscious of your user base when enabling flexbox in your project. Visit [Can I use...](http://caniuse.com/#feat=flexbox) for details on browser support of flexbox.
diff --git a/docs/getting-started/options.md b/docs/getting-started/options.md
index 7fddc9c09..b8dc3b583 100644
--- a/docs/getting-started/options.md
+++ b/docs/getting-started/options.md
@@ -32,7 +32,6 @@ You can find and customize these variables for key global options in our `_varia
 | Variable                    | Values                             | Description                                                                            |
 | --------------------------- | ---------------------------------- | -------------------------------------------------------------------------------------- |
 | `$spacer`                   | `1rem` (default), or any value > 0 | Specifies the default spacer value for our spacer utilities.                           |
-| `$enable-flex`              | `true` or `false` (default)        | Swaps `float` and `display: table` styles for `display: flex`.                         |
 | `$enable-rounded`           | `true` (default) or `false`        | Enables predefined `border-radius` styles on various components.                       |
 | `$enable-shadows`           | `true` or `false` (default)        | Enables predefined `box-shadow` styles on various components.                          |
 | `$enable-gradients`         | `true` or `false` (default)        | Enables predefined gradients via `background-image` styles on various components.      |
-- 
cgit v1.2.3


From c64da95e92345addbd333cda6b9f032361c5aaa6 Mon Sep 17 00:00:00 2001
From: Quy <quy@fluxbb.org>
Date: Sat, 24 Dec 2016 16:12:26 -0800
Subject: Update IE9 support (#21424)

---
 docs/getting-started/browsers-devices.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'docs/getting-started')

diff --git a/docs/getting-started/browsers-devices.md b/docs/getting-started/browsers-devices.md
index 6273a0f31..34d98a898 100644
--- a/docs/getting-started/browsers-devices.md
+++ b/docs/getting-started/browsers-devices.md
@@ -14,7 +14,7 @@ Bootstrap supports a wide variety of modern browsers and devices, and some older
 
 ## Supported browsers
 
-Bootstrap supports the **latest, stable releases** of all major browsers and platforms. On Windows, **we support Internet Explorer 9-11 / Microsoft Edge**.
+Bootstrap supports the **latest, stable releases** of all major browsers and platforms. On Windows, **we support Internet Explorer 10-11 / Microsoft Edge**.
 
 Alternative browsers which use the latest version of WebKit, Blink, or Gecko, whether directly or via the platform's web view API, are not explicitly supported. However, Bootstrap should (in most cases) display and function correctly in these browsers as well. More specific support information is provided below.
 
@@ -105,7 +105,7 @@ Similarly, the latest versions of most desktop browsers are supported.
 
 For Firefox, in addition to the latest normal stable release, we also support the latest [Extended Support Release (ESR)](https://www.mozilla.org/en-US/firefox/organizations/faq/) version of Firefox.
 
-Unofficially, Bootstrap should look and behave well enough in Chromium and Chrome for Linux, Firefox for Linux, and Internet Explorer 8 and below, though they are not officially supported.
+Unofficially, Bootstrap should look and behave well enough in Chromium and Chrome for Linux, Firefox for Linux, and Internet Explorer 9 and below, though they are not officially supported.
 
 For a list of some of the browser bugs that Bootstrap has to grapple with, see our [Wall of browser bugs]({{ site.baseurl }}/browser-bugs/).
 
-- 
cgit v1.2.3


From 7961886efecc1b1cdfd7a90db45f5364ad76fb9e Mon Sep 17 00:00:00 2001
From: Bardi Harborow <bardi@bardiharborow.com>
Date: Sat, 24 Dec 2016 22:44:44 +1100
Subject: Remove Meteor install instructions.

---
 docs/getting-started/download.md | 6 ------
 1 file changed, 6 deletions(-)

(limited to 'docs/getting-started')

diff --git a/docs/getting-started/download.md b/docs/getting-started/download.md
index b85e26fe6..e23b26b7c 100644
--- a/docs/getting-started/download.md
+++ b/docs/getting-started/download.md
@@ -71,12 +71,6 @@ gem install bootstrap -v 4.0.0.alpha5
 
 [See the gem's README](https://github.com/twbs/bootstrap-rubygem/blob/master/README.md) for further details.
 
-### Meteor
-
-{% highlight bash %}
-meteor add twbs:bootstrap@={{ site.current_version }}
-{% endhighlight %}
-
 ### Composer
 
 You can also install and manage Bootstrap's Sass and JavaScript using [Composer](https://getcomposer.org):
-- 
cgit v1.2.3