Versions with a trailing odd number are considered to be "in-development", these are unstable "bleeding-edge" versions of the compiler which you can get from Github. Versions with an even number are releases. E.g. 0.9.0 is a release version, 0.9.1 is an in-development version.
* Identifiers which only differ in case are bad style. If the programming language treats them the same the programmer needs to come up with different names for different things.
* Many programming languages are case insensitive: Lisp, Basic, Pascal, Ada, Eiffel, Fortran. Since software for aircrafts and power plants has been written in Ada, it seems reasonable to assume that case insensitivity will not destroy civilisation.
* Note that most people confuse case sensitivity with case consistency (which is indeed good style). However, case consistency is easier to achieve with case insensitivity and a properly configured IDE than with case sensitivity.
You can find examples in the [examples/](https://github.com/Araq/Nimrod/tree/master/examples) directory. There are also many other examples available on [Rosetta Code](http://rosettacode.org/wiki/Nimrod).
Tabs are treated differently by different tools and editors. Because indentation is so important in Nimrod it is much simpler to outright forbid tabs in source code than to risk the mixing of tabs and spaces. Guido van Rossum of Python himself has said that if he were to design Python again he would forbid tabs.
Nimrod is certainly not unique in forbidding tabs. [YAML](http://www.yaml.org/faq.html) does the same.
