You are currently running Yahoo! Messenger 126.96.36.199. A newer version, Yahoo! Messenger 188.8.131.52 is now available. Please update your version of Yahoo! Messenger to ensure that you have the latest features and security updates. Click the “Update Now” button to continue.
Just noticed that newest version for Yahoo Messenger 11.5 for version 184.108.40.206 is available. As usually, we always provides the Offline installer aka Stand Alone installer for YM in which you don’t need to install it online. Just download directly from Yahoo Server, and then click the installer to update your Yahoo Messenger
Download Offline Installer of Yahoo Messenger 220.127.116.11
Here are the download links available for YM 18.104.22.168 (about 18.5MB):
for US: Download (http://xh.yimg.com/gj/msgr/115/client/ymsgr1150_0228_us.exe)
for Spain: Download (http://xh.yimg.com/gj/msgr/115/client/ymsgr1150_0228_es.exe)
For UK: Download (http://xh.yimg.com/gj/msgr/115/client/ymsgr1150_0228_uk.exe)
For Indonesia: Download (http://xh.yimg.com/gj/msgr/115/client/ymsgr1150_0228_id.exe)