Here are some notable changes:
Support for OCaml 4.03
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Async_kernel (and Core_kernel) support
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In the findlib package js_of_ocaml.async.
Note that it is only available with a 32bit OCaml compiler.
Dynlink and separate compilation
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One can now compile OCaml module (.cmo) and OCaml library (.cma) to JavaScirpt.
Loading theses JavaScript files is enough to dynlink them.
Improved JavaScript code generation
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* preserve as much as possible OCaml variable names (in pretty mode)
* Better source map support
* Drastically reduce memory usage when assigning short variable names
The full change log is available onĀ
github