We are pleased to announce a new release candidate for you to try out: 3.17.0-rc-1. You can find it on CDN here , via npm , and download it via the .zip archive . We have also updated the staging website with the latest documentation. This release...

We are pleased to announce the release of YUI 3.16.0 ! This release can be found on the Yahoo CDN , through npm , and via a downloadable .zip archive . The YUI Library website has also been updated to reflect the changes in this release. What's New...

We are happy to announce a new release candidate for you to try out: 3.16.0-rc-1. You can find it on CDN here , via npm , and download it via the .zip archive . We've also updated the staging website with the latest documentation. This release...

We finish out our YUIConf 2013 series with our Lightning Talks session . Anyone who had interesting content to discuss could queue up and give a brief talk. Check out the links below if you would like to jump to a specific speaker. Bruno Farache of...

Testing your code is one of the best things you can do for the quality of your app. For a project as large as YUI this can present a number of challenges. Reid Burke in his YUIConf presentation " Testing YUI Everywhere " talks about the issues he...

The weather may be keeping you inside this Friday, but that gives you a great opportunity to check out some great YUIConf 2013 videos. Today we feature the talk from Evan Goer following up on his last year's talk on " Thinking of Documentation as...

Today we have another great YUIConf 2013 video to share with you. This one features Anthony Pipkin talking about the anatomy of a perfect pull request in a talk entitled " Great Pull Reqests " followed by the "Pull-Request-A-Palooza" as a Q&A...

We are happy to announce the release of YUI 3.15.0 ! You can find this release on the Yahoo CDN , through npm , and downloadable via a .zip archive . The YUI Library website has also been updated to reflect the changes in this release. What's New In...

Firefox has been in the news quite a bit in the past few days, so it is fitting that we release the video of the YUIConf 2013 presentation that Bill Walker gave entitled " Firefox Marketplace: Breaking the Stranglehold of App Stores ". We hope you...

Fridays are great days to take some time and catch up on conference videos, especially from our great YUIConf speakers. We have a new video featuring Akshay Patel and Seth Bertalotto on the topic of " Grunt your World ". Be sure to also watch...

After a short hiatus due to the holiday we're back with more videos from YUIConf 2013. Next up we have a great talk from Ted Drake and Sarbbottam entitled " Accessibility + YUI ". You can check out the previous video from Friday or view them all...

Happy Friday! We've reached the end of another week and today we feature a new presentation from Diego Ferreiro and Norbert Hu . This talk is entitled " Building a Performant HTML5/Hybrid App ". As always, you can watch Wednesday's video or catch...

Welcome to the Wednesday edition of our YUIConf 2013 video series. Today we have a presentation from Mark Kawakami entitled " Touch Football: Rebuilding Yahoo Fantasy Sports for the Modern Web ". Be sure to check out Monday's video and the whole...

Welcome to another great Monday morning! Get things started right by watching another awesome YUIConf 2013 video. This time around we have the second presentation from Ariya Hidayat on the topic of " Next-Generation JavaScript Language Tooling "....

Welcome to another Friday! Today we have a new YUIConf 2013 presentation from one of our keynote speakers Dav Glass . He gave a rousing talk about " YUI and the History of OSS at Yahoo ". We hope you are enjoying these YUIConf videos! Be sure to...

Next up in our triweekly video series from YUIConf 2013 we have one of our keynote speakers Ariya Hidayat. His late afternoon keynote was entitled " JavaScript API Design Principles ". This is definitely one to check out. Be sure to catch the...

Today we have a new YUIConf 2013 video for you to check out. This one is from Lauren Tsung entitled " The 'Building Blocks' of Prototyping ". Check out Friday's video , or see them all via our YouTube playlist .

Welcome to another Friday! Today we have a new YUIConf 2013 video for you from Julien Lecomte. This presentation was listed as "Mojito Ecosystem" in the schedule, but is actually entitled " Mojito and Yahoo Search ". You can check out Wednesday's...

We've reached midweek and a new YUIConf 2013 video release. Today's presentation comes from Manuel Jasso and Nathan Comstock entitled " YUI + Closure Templates = Enterprise JSP Tags ". Be sure to check out Monday's video and catch the released...

We've started a new week and it's time for a new YUIConf 2013 video. Today we have a great talk from Caridy Patiño entitled " Introducing the 'Modown' Project ". This one has been asked about quite a bit on IRC and offers a great introduction to...

Happy Friday! We are pleased to release another YUIConf 2013 video for your weekend viewing. Today's release is from Eduardo Lundgren from Liferay with a presentation entitled " Reintroducing AlloyUI ". You can also check out the previous video , or...

Monday brings with it another great YUIConf 2013 video! In this presentation David Gomez talks about getting back to the basics in testing, and covers some core concepts in " Forget Everything You Know About Testing, and Start Testing! ". You can...

It's Friday, and that signals the release of another YUIConf 2013 video. This one includes a brief presentation by me, Andrew Wooldridge , and then a town hall discussion with the YUI community at the conference. The talk is entitled " YUI in 2013:...

We've reached that point in the week where we post another YUIConf 2013 video! This time we feature Jonathan Tsai and William Seo from Talentral discussing " Staying DRY with YUI ". Be sure to catch the previous video as well as all the available...

During YUIConf 2013, members of the community were asked to give a brief interview detailing why they chose YUI. Lots of folks responded and we created a video showing some of the highlights , along with scenes from the conference. If you weren't...

Happy Monday! It's time for another great YUIConf 2013 presentation video. As you know, we are posting a new one every few days in the order that you might have seen them during the conference. Today we have a great presentation from Tilo Mitra on "...

Happy Friday! We are so glad to be able to finally share with you the videos of the amazing talks from YUIConf 2013. Today's talk is from Clarence Leung entitled " YUI and the New Server-Side Front-End " and has a lot of interesting information for...

Happy New Year! It's great to kick off 2014 with awesome videos of the YUIConf 2013 presentations. If you recall from last year , we posted a new video every few days or so for you to check out. We are kicking off this series with a great talk from...

We are happy to announce the release of YUI 3.14.1 ! This release can be found on the Yahoo CDN , through npm , and via download . We also have updated the YUI Library website to reflect the changes in this release. What's New In This Release The...

We are pleased to announce the release of YUI 3.14.0 ! This release can be found on the Yahoo CDN as well as through npm and a .zip archive . We also have updated the YUI Library website to reflect the changes in this release. ( It's fitting that...

The past few days have been filled with amazing presentations, awesome food, and great discussions with folks from all over the country at YUIConf 2013 . Social networks were abuzz over the great talks and folks were sharing snapshots of the...

We are pleased to announce the addition of Juan Dopazo to the YUI Team! Here's a little introduction from Juan: "I've been a total web and JavaScript geek for years. I've worked at large companies with 20k employees and at 3-person startups. I've...

Last year the "Lightning Talks" session at YUIConf 2012 was one of the more popular segments of the conference. We want to give this year's YUIConf attendees an opportunity give an informal 5-10 minute talk. It can be anything from discussing a site...

We’re excited to announce our lineup of technical sessions for YUIConf 2013 . To help us schedule all the talks, we want to get your feedback about which ones you most want to see. Please take our survey below (or follow this link to open in a new...

Thank you to everyone who submitted a talk proposal for YUIConf this year! We're excited to bring in some fresh ideas to make this the best year ever, but as always the quality of the tech talks will be the highest priority. Highlights include:...

We are very happy to announce the release of YUI 3.13.0 ! You can find this release via the Yahoo CDN , installable through npm , or available as a download . We have also updated the YUI Library website to reflect changes in this release. In This...

We are happy to announce a new release candidate for everyone to try out: 3.13.0-rc-1 . It is available through our CDN here , downloadable via an archive , and installable via npm . This release candidate is currently being tested across our target...

Register Now! Registration is now open for YUIConf 2013! This is our 5th year running, and it promises to be the best one yet. YUIConf 2013 will take place at the Hyatt Place in downtown San Jose, CA November 6 and 7 and will bring together...

We are happy to announce the release of a new YUI beta: YUI 3.13.0 beta 1 . It is available on Yahoo! CDN , a zip download , and on npm . Our YUI Library staging website has been updated as well with the latest changes in this release. What's new in...

We are happy to announce the release of YUI 3.12.0 ! This release is available on the Yahoo! CDN for you to include directly in your scripts, taking advantage of Yahoo!'s fast CDN. You can also install it via npm or download it directly . We've also...

We are excited to announce the dates for YUIConf 2013: mark your calendars for November 6th and 7th! We've been working to find a bigger and better venue this year, and we've found it at the Hyatt Place in downtown San Jose, California . If you have...

We are happy to announce a new Committer to the YUI project, Ryuichi Okumura ( @okuryu ). Ryuichi has been a developer on the Yahoo! Japan platform group for over 6 years, and hopes to work on both the Intl and Calendar components. Welcome Ryuichi!

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We are pleased to announce a new release candidate for you to try out. 3.12.0-beta-1 is available via CDN here , a downloadable archive , or on npm . We've also updated the staging website with the latest documentation. We are currently testing this...

We are happy to announce the release of YUI 3.11.0 ! You can find it now on the Yahoo! CDN , via npm , or download it directly . The YUI Library website has also been updated to reflect the changes in this release. There have been lots of changes...

We are pleased to announce a new preview release for you to try out. YUI 3.11pr1 is available via Yahoo! CDN , a downloadable archive , or on npm . Our YUI Library staging website has also been updated to reflect the changes in this release. Given...

Update: There was an issue with the downloadable .zip package that prevented successful extraction that has now been fixed. We are releasing YUI 3.10.3 today to fix a .swf vulnerability that was inadvertantly reintroduced in YUI 3.10.2 . Any project...

We are happy to announce the release of YUI 3.10.2 ! You can find it now on the Yahoo! CDN , download it directly, or pull it in via npm . We've also updated the YUI Library website with the latest documentation. Since we've had a number of larger...

Details Due to a recently discovered SWF vulnerability , we are releasing YUI 3.10.1 . Any project which is self-hosting YUI 3 .swf files should read the security bulletin and take action to resolve potential vulnerabilities on your servers. YUI...

We are pleased to announce the release of YUI 3.10.0 ! You can find it on the Yahoo CDN , via direct download , or npm . The YUI Library website has also been updated with the latest documentation. This release has a number of new features and fixes...

Our friends on the AlloyUI team at Liferay have been hard at work on version 2.0. This new version will bring a lot of improvements that they will be sharing at JAX next week. Zeno Rocha ( @zenorocha ), Front-end Engineer at Liferay and co-founder...

Last Thursday we hosted our first YUI After Hours event! YUI team members and developers from across the Bay Area got together for an evening of food, drink, presentations, and great conversation! Dav Glass ( @davglass ) kicked things off with...

We are very pleased to announce the addition of Caridy Patino to the YUI team. Caridy joins us from his former role in Yahoo! Search where he worked on such projects as Yahoo! Axis . Caridy has been a longtime contributor to Mojito and will focus on...

Today we have released YUI 3.9.1 . You can find this release on the Yahoo! CDN , as a download , and on npm . The YUI Library website has been updated as well. This is a small release mainly intended to fix an issue with Handlebars but includes some...

I recently sat down with YUI developer Anthony Pipkin (@apipkin) and talked with him about the work he is currently doing on YUI DataTable. While only joining the YUI team this past July, Tony has been a long-time YUI contributor and active member...

We have released YUI 3.9.0 today. It is now available via Yahoo! CDN , download , and npm . The YUI Library website has been updated with the latest documentation. This release has seen quite a progression of features and fixes since YUI 3.8.1 and...

Often when people think of contributing to an open source project such as YUI they only consider code changes or bug fixes. However, you don't have to dive deep into the source code to provide something of great value to the YUI community! If you...

We are pleased to announce the addition of Eugene Kashida ( @ekashida ) to the YUI Team! Eugene comes to us from the Yahoo! Axis team. During his time there he helped develop Axis , a simple and fast web-based mobile search application. Axis was...

We've decided to delay the release of YUI 3.9.0 by a week or so to ensure the quality of the new features and bug fixes that have been included recently. We had two pull requests that fix issues with CSS Grids in Chrome 25 ( 468 and 469 ) come in...

We have a new preview release today. This release is YUI 3.9.0pr3 and is available on Yahoo! CDN , download , and via npm . We have also updated the staging website for this version. What's New Since PR2? We have had a number of great new features...

Next Sprint We've started our latest sprint (called Sprint 5). If you follow our project calendar you'll find that we've added some additional milestones to reflect the 72 hour window specified in our Contributor Model . The new sprint has the...

Last night we released YUI 3.8.1 . It is now available on the Yahoo! CDN (also as a download ) and on npm . The YUI Library website has been updated with the latest documentation, including the addition of iOS 6 to our Target Environments . iOS 6...

This next talk in our video series from YUIConf 2012 is the second one featuring members of the Yahoo! security team, Dmitry Savintsev and Albert Yu . The previous security video from Bishan Kochar was featured a few weeks ago, so you may want to...

Not all talks at YUIConf 2012 were directly related to features of YUI. One such talk focused instead on the need for testing code entitled "Write Code That Works" from Reid Burke . This was a very popular talk that was highly rated by attendees. If...

One of the themes of YUIConf 2012 was that YUI is a robust platform to build upon and extend. This is precisely what the folks in the Yahoo! mobile e-commerce team did with Bottle . After you check out the video below, be sure to take a look at...

The holidays are over and you've probably returned to the office to find your inbox full of fun things to catch up on, right? Our video series has been on a short hiatus as well and it is time to catch up a bit. We have three videos for you to check...

Our series progresses through the talks from YUIConf 2012 and takes us to the next one from Douglas Crockford . This was a lively evening keynote after the dinner at the conference. As always, keep up on the latest videos on YUI Theater and YouTube...

We are pleased to announce the availability of YUI 3.8.0 . It is available via Yahoo! CDN (or download ) and on npm . We have also updated our website to reflect the changes and new features of 3.8.0. The highlights of this release are listed below,...

Up next in our YUIConf 2012 video series is a talk from Evan Goer . In addition to speaking and working at Yahoo!, Evan has written the excellent YUI 3 Cookbook . This talk was one of the most highly rated of the conference. Be sure to keep up on...

If you have yet to be convinced that YUIConf 2012 was the best conference yet, then perhaps this next video will help change your mind. We continue our series of video releases with one entitled " Mojito for YUI Developers " by Caridy Patiño . You...

YUI continues to expand the role of its community through our newly drafted Contributor Model . A vital component of that model is the YUI Contributor Mailing List. We are pleased to announce that this list is now open and available for you to join!...

One of the main themes of YUIConf 2012 was community . In the blog post " You Are the YUI Team: YUIConf 2012 Recap & Keynote Video " we went into some detail about this next video, which became one of the highlights of the whole conference. As...

YUIConf 2012 was an incredible conference with excellent speakers on topics that are relevant to the YUI community. We really enjoy sharing a bit of it with you with a new video release every few days. Be sure to check out our earlier videos as well...

Happy Friday! We continue our series of video releases from YUIConf 2012 with the talk from Ryan Grove entitled "When Not to Use YUI" . Be sure to check out the earlier videos in this series, as well as bookmark YUI Theater and our YouTube channel...

We are continuing our series of video releases from YUIConf 2012. Check back every few days for a new release, subscribe to the YUI Theater RSS feed , and watch the yuilibrary channel on YouTube. Be sure to check out the previous video from Jeff and...

Day 1: Surprises. tl;dr: Dav Glass' keynote is below Last week folks from around the world got together to meet face to face and discover the latest developments in the YUI world at YUIConf 2012. Expectations were high as folks had heard hints of a...

YUI team member Tilo Mitra is speaking at YUIConf 2012 about Windows 8. You can get a preview of some of the content of this talk by checking out our recently published YouTube video of the YUI Hangout we did as well as his excellent blog post ....

Update: Additional information is available about this issue. We have identified a security vulnerability on self-hosted YUI 2 SWF files. * Users of YUI 2 via http://yui.yahooapis.com or another CDN are not affected by this issue. * Users of YUI 3...

We're excited to announce our lineup of full-length technical sessions for YUIConf 2012 . To help us schedule all the talks, we want to get your feedback about which ones you most want to see. Please take our survey below (or follow this link to...

Come and hang out with the YUI Team on Tuesday, October 30th at 1pm PST as we talk about building native apps for Windows 8 using JavaScript. Here's what we'll be covering: Set up your environment and include YUI in your WinJS project. Look over...

YUIConf 2012 will be held Nov 14 - 15 at the Santa Clara Mariott . We have additional hotel information for you as you set up your travel plans: Marriott Santa Clara (Conference Hotel) 2700 Mission College Boulevard Santa Clara, CA Yahoo has secured...

The focus for the next release is to add IE 10 to YUI's target environments . YUI's unit tests already fare well in IE 10's standard desktop browser mode, but in Windows 8 there are multiple runtime environments (progressively more restrictive) in...

This Friday September 28th from 11:30 - 12:30 PDT we will host an informal chat for anyone interested in talking about the proposal process for YUIConf . Are you on the fence about submitting a propsal? Don't know if your topic is developed enough...

NOTE: New conference dates have been set! Nov 14–15 (Wed. and Thurs.) at the Santa Clara Marriott . If you are planning to come to YUIConf, please read this carefully! Due to the high level of potential conflicts with the originally listed dates for...

NOTE: New conference dates have been set! Nov 14–15 (Wed. and Thurs.) at the Santa Clara Marriott . You've worked hard on your YUI-based project all year and now is the time for you to share what you've learned! Submit your proposal to yui-events...

NOTE: Be sure to update to the latest patch release : 3.7.2. It's exciting to be part of a live and vibrant project that is so responsive to its community. That is most evident by things like releasing a new patch as soon as we find issues. We...

NOTE: Be sure to update to the latest patch release : 3.7.2 We are happy to announce the release of YUI 3.7.0, now available on CDN or as a download . The documentation on the website has been updated as well! Releases will be coming more often now,...

NOTE: New conference dates have been set! Nov 14–15 (Wed. and Thurs.) at the Santa Clara Marriott . Hi, I’m Andrew Wooldridge, the new Community Engineer for YUI. I’ve been an active community member and Yahoo! employee for many years now, with blog...

One of the great benefits of developing YUI in the open is that everyone is free to contribute in a way that highlights their own talents. One such talented person is Kevin Lamping. Kevin takes Khan Academy style training to the next level with his...