This week, I'll roll out a major update to REST in Place. I have completely restructured the code and made the Plugin much more object-oriented, modular and maintainable. Existing installations should be able to upgrade without a hitch. The most important change for users will be the jQuery 1.4 support and support for different editors (such as textarea, checkbox, etc.).
In November I got some pull requests for REST in Place which I didn't get to really have a look at until last week. I haven't really touched REST in Place in ages and wasn't really aware that it was that popular. It has 72 followers and 11 forks on github and who knows how many other people are just silently using it! So, I merged in the contributions and dealt with some issues in the tracker and thought about how to go on.
This new development has some drawbacks too, unfortunately. This massive improvement will only go to the jQuery version of REST in Place. Since I don't know much about Prototype or mootools, I can't support both versions anymore. If someone is willing to work with me on this, I'll happily accept their contributions but I can't do this on my own. If anyone is willing to do so, please reply in the comments, so we can work out a plan. I want to keep all three versions as similar as possible, this means the Prototype and mootools versions should follow the same object-oriented structure as the jQuery version.
One last thing: I will support jQuery < 1.4 until 1.4.1 comes out. 1.4 introduced some very nice changes which I'd like to make use of but since 1.4 seems a little buggy still, I'll continue to support the older versions for a little while.