Prototype heads CSS3 and adds JSON goodness

The core team has been pretty busy at making Prototype even better since the release of 1.5.0 back in January, and the result is the first release candidate of Prototype 1.5.1.

You can read the complete scoop here, just to get you warmed up, here’s some of the newly added goodness:

• CSS selectors ($$ and assorted methods) got a complete overhaul, and are blazing fast now; plus they support most CSS3 features.

• Built-in JSON support—plus a great tutorial on how to use it

The API documentation has been updated to reflect this, so there’s no excuse not to make the jump to Prototype 1.5.1—if you do find any issue, please report it.

Read the announcement and download on the Prototype blog.

Update: If you want to use Prototype 1.5.1_rc0 with script.aculo.us, be aware the the current 1.7.0 version requires Prototype 1.5.0, so be sure to grab the latest and greatest SVN trunk version of script.aculo.us which works fine with Prototype 1.5.1, and takes advantage of the updates. A script.aculo.us 1.7.1 release candidate should be coming soon…