Many of you have noticed that the Forge was having trouble updating and adding new plugins. GitHub updated their API to a new (v3) version quite a while ago, but we hadn't been able to make the time to update the Forge to use it yet. On June 12, GitHub disabled the v2 API completely, and updating and adding to the Forge stopped working.

MooTools Core 1.4.5 is a maintenance release for the 1.4 branch.

1.4.5 brings a critical bugfix for Fx.CSS which caused many troubles for tweening and morphing your element styles. The bug was caused by a fix in 1.4.4 which should improve animating other length units like % or em (see #2160. Many of you noticed the bug and filled bugreports and also helped us testing this new release.

We have improved our tests and are planning to freeze the code for a new release for a longer period so we can gather more feedback to prevent potential regressions. If you're interested in testing a new release in your application, you can ping us on IRC (#mootools on freenode.net), Twitter (@mootools / @astolwijk) or in the MooTools User Group.