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```
releaseHeader('2010-11-21', '0.9.5', '0.9.4')
```
0.9.5 should be considered the first release candidate for CoffeeScript 1.0. There have been a large number of internal changes since the previous release, many contributed from **satyr**’s [Coco](https://github.com/satyr/coco) dialect of CoffeeScript. Heregexes (extended regexes) were added. Functions can now have default arguments. Class bodies are now executable code. Improved syntax errors for invalid CoffeeScript. `undefined` now works like `null`, and cannot be assigned a new value. There was a precedence change with respect to single-line comprehensions: `result = i for i in list`
used to parse as `result = (i for i in list)` by default … it now parses as
`(result = i) for i in list`.
|
