• Math.fround now also works in IE9-
• added Set#toJSON
• some optimizations and fixes

fixed Symbol.keyFor

• changed CommonJS API
• splitted and renamed some modules
• added support ES3 environment (ES5 polyfill) to all default versions - size increases slightly (+ ~4kb w/o gzip), many issues disappear, if you don't need it - simply include only required namespaces / features / modules
• removed abstract references support - proposal has been superseded =\
• $for.isIterable -> core.isIterable, $for.getIterator -> core.getIterator, temporary available in old namespace
• fixed iterators support in v8 Promise.all and Promise.race
• many other fixes

Fixed support Object.defineProperty with accessors on DOM elements on IE8

• added support safe closing iteration - calling iterator.return on abort iteration, if it exists
• added basic support Promise unhandled rejection tracking in shim
• added Object.getOwnPropertyDescriptors
• removed console cap - creates too many problems - you can use core.log module as that
• restructuring namespaces
• some fixes

• added support binary and octal literals to Number constructor
• added Date#toISOString