- Reagent no longer bundles React. Instead it uses cljsjs/react as a dependency. This means that you should no longer specify React in `:preamble` in your project.clj.
- Stop wrapping native components. This reduces the number of components created a lot, and can speed up some things substantially (especially render-to-string, that is not bound by browser performance). This is made possible by a new way of keeping track of which order to re-render dirty components.
- Arguments to components are now compared using simple `=`, instead of the old, rather complicated heuristics. **NOTE**: This means all arguments to a component function must be comparable with `=` (which means that they cannot be for example infinite `seq`s).
-`render-component` is now render, and `render-component-to-string` is `render-to-string`, in order to match React 0.12 (but the old names still work).
- Made Reagent compatible with ClojureScript 0.0-2173. `reagent.core/atom` now implements the necessary IAtom, ISwap and IReset protocols. Reagent should still be compatible with older ClojureScript versions, but you will get a lot of compilation warnings.
- Breaking change: Component functions can get arbitrary arguments, and not just vectors and maps. This is a breaking change, but behaviour is unchanged if you pass a map as the first argument (as in all the examples in the old documentation).
- React updated to 0.9.0.
- You can now use any object that satisfies `ifn?` as a component function, and not just plain functions. That includes functions defined with deftype, defrecord, etc, as well as collections like maps.
-`reagent.core/set-state` and `reagent.core/replace-state` are now implemented using a `reagent.core/atom`, and are consequently async.
- Keys associated with items in a seq (e.g ”dynamic children” in React parlance) can now be specified with meta-data, as well as with a `:key` item in the first parameter as before. In other words, these two forms are now equivalent: `^{:key foo} [:li bar]` and `[:li {:key foo} bar]`.
- Performance has been improved. For example, there is now practically no overhead for tracking derefs in components that don’t use atoms. Allocations and memory use have also been reduced.
- Intro and examples have been tweaked a little to take advantage of the new calling conventions.
## 0.3.0
- Changes in application state are now rendered asynchronously, using requestAnimationFrame.
- Reagent now does proper batching of updates corresponding to changed atoms, i.e parents are rendered before children, and children are only re-rendered once.
- Add `reagent.core/flush` to render changes immediately.
- Bugfix: Allow dynamic id with hiccup-style class names.
## 0.2.1
- Bugfix: allow data-* and aria-* attributes to be passed through unchanged.
## 0.2.0
- Rename Cloact to Reagent, due to popular disgust with the old name...
