# Change Log
All notable changes to `nalgebra`, starting with the version 0.6.0 will be
documented here.

This project adheres to [Semantic Versioning](http://semver.org/).

## [0.6.0]
**Announcement:** a users forum has been created for `nalgebra`, `ncollide`, and `nphysics`. See
you [there](http://users.nphysics.org)!

### Added
  * Dependency to [generic-array](https://crates.io/crates/generic-array). Feature-gated: requires
  `features="generic_sizes"`.
  * Staticly sized vectors with user-defined sizes: `VecN`. Feature-gated: requires
  `features="generic_sizes"`.
  * Similarity transformations (an uniform scale followed by a rotation followed
    by a translation): `Sim2`, `Sim3`.

### Removed
  * Removed zero-sized elements `Vec0`, `Pnt0`.
  * Removed 4-dimensional transformations `Rot4` and `Iso4` (which had an implementation to incomplete to be useful).

### Modified
  * Vectors are now multipliable à isometries. This will result into a pure rotation (this is how
  vectors differ from point semantically: they design directions so they are not translatable).
  * `{Iso3, Rot3}::look_at` reimplemented and renamed to `::look_at_rh` and `::look_at_lh` to agree
  with the computer graphics community (in particuliar, the GLM library). Use the `::look_at_rh`
  variant to build a view matrix that
  may be successfully used with `Persp` and `Ortho`.
  * The old `{Iso3, Rot3}::look_at` implementations are now called `::new_observer_frame`.
  * Rename every `fov` on `Persp` to `fovy.
  * Fixed the perspective and orthographic projection matrices.