The beginnings of Allegro 5 can be traced back to 2002. Today, we are very happy and proud to announce the release of Allegro 5.0.0, the first official release of the 5.0 branch!
You can download it from SourceForge. The reference manual is available online, as is the list of changes.
We would like to thank everyone who has contributed to Allegro during all these years, not only the developers, but the users who have tested pre-releases, reported bugs and submitted patches.
Have fun! There is more to come.
Also from the site's introduction section:
Allegro 5 is the latest major revision of the library, designed to take advantage of modern hardware (e.g. hardware acceleration using 3D cards) and operating systems. Although it is not backwards compatible with earlier versions, it still occupies the same niche and retains a familiar style.
Allegro 5.0 supports the following platforms:
Unix/Linux
Windows (MSVC, MinGW)
MacOS X
iPhone
You can see the functionality Allegro provides by browsing the online reference manual.
Allegro only supports 2D graphics primitives natively, but it is perfectly reasonable to use Allegro alongside a 3D API (e.g. OpenGL, Direct3D, and higher level libraries), while Allegro handles the other tasks. Allegro is also designed to be modular; e.g. if you prefer, you can substitute another audio library.
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