# Mesa 7.4 Release Notes / 27 March 2009

Mesa 7.4 is a stable development release fixing bugs since the 7.3 release.

Mesa 7.4 implements the OpenGL 2.1 API, but the version reported by glGetString(GL_VERSION) depends on the particular driver being used. Some drivers don't support all the features required in OpenGL 2.1.

See the Compiling/Installing page for prerequisites for DRI hardware acceleration.

## MD5 checksums

    ed6bd7437177307e51e16d0c7c381dfa  MesaLib-7.4.tar.gz
    7ecddb341a2691e0dfdb02f697109834  MesaLib-7.4.tar.bz2
    433e823f8245f9fd5f397e7b719a8e47  MesaLib-7.4.zip
    656eee6128016fb237e01aa8dabbc703  MesaDemos-7.4.tar.gz
    02816f10f30b1dc5e069e0f68c177c98  MesaDemos-7.4.tar.bz2
    44a70d6db4aa4c64ecc47871b6aceee8  MesaDemos-7.4.zip
    25f80db4f8645cd3e58e2c9af53ec341  MesaGLUT-7.4.tar.gz
    04ec01caebde44f5b0d619f00716b368  MesaGLUT-7.4.tar.bz2
    019dc213baecaa3cb1278847d41b8591  MesaGLUT-7.4.zip

## New features

- Added MESA_GLX_FORCE_DIRECT env var for Xlib/software driver
- GLSL version 1.20 is returnd by the GL_SHADING_LANGUAGE_VERSION query

## Bug fixes

- glGetActiveUniform() returned wrong size for some array types
- Fixed some error checking in glUniform()
- Fixed a potential glTexImage('proxy target') segfault
- Fixed bad reference counting for 1D/2D texture arrays
- Fixed VBO + glPush/PopClientAttrib() bug #19835
- Assorted i965 driver bug fixes
- Fixed a Windows compilation failure in s_triangle.c
- Fixed a GLSL array indexing bug
- Fixes for building on Haiku

## Changes

- Updated GL/glxext.h to version 48
- Assorted updates for building on Solaris

## Driver Status

    Driver			Status
    ----------------------	----------------------
    DRI drivers		varies with the driver
    XMesa/GLX (on Xlib)	implements OpenGL 2.1
    OSMesa (off-screen)	implements OpenGL 2.1
    Windows/Win32		implements OpenGL 2.1
    Glide (3dfx Voodoo1/2)	implements OpenGL 1.3
    SVGA			unsupported
    Wind River UGL		unsupported
    DJGPP			unsupported
    GGI			unsupported
    BeOS			unsupported
    Allegro			unsupported
    D3D			unsupported