# Mesa 7.8.3 Release Notes / (date tbd)

Mesa 7.8.3 is a bug fix release which fixes bugs found since the 7.8.2 release.

Mesa 7.8.3 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

    x  MesaLib-7.8.3.tar.gz
    x  MesaLib-7.8.3.tar.bz2
    x  MesaLib-7.8.3.zip
    x  MesaDemos-7.8.3.tar.gz
    x  MesaDemos-7.8.3.tar.bz2
    x  MesaDemos-7.8.3.zip
    x  MesaGLUT-7.8.3.tar.gz
    x  MesaGLUT-7.8.3.tar.bz2
    x  MesaGLUT-7.8.3.zip

## New features

None.

## Changes

- The radeon driver should use less memory when searching for a valid mip image.

## Bug fixes

- Fix unsupported FB with D24S8 (bug 29116)

- Fix ReadPixels crash when reading depth/stencil from an FBO

- Fixed a bug rendering to 16-bit buffers using swrast.

- Fixed a state tracker/TGSI bug that caused crashes when using Windows’ memory debugging features.

- Fixed an issue rendering to 32-bit channels with swrast (bug 29487)

- GLSL: fix indirect `gl_TextureMatrix` addressing (bug 28967)

- GLSL: fix for bug 27216

- GLSL: fix zw fragcoord entries in some cases (bug 29183)

- Fix texture env generation in some cases (bug 28169)

- osmesa: a fix for calling `OSMesaMakeCurrent` twice was applied (bug 10966

- A bug was fixed which could cause Mesa to ignore the `MESA_EXTENSION_OVERRIDE` environment variable.

- A bug related to specular highlights on backfaces was fixed.

- A radeon-specific issue with `glCopyTex(Sub)Image` was corrected.

- radeon/wine: flush command stream in more cases, fixing wine d3d9 tests.

- r600: fix sin+cos normalization.

- r600: (properly) ignore `GL_COORD_REPLACE` when point sprites are disabled.

- radeon: avoid flushing when the context is not current.

- r300c: a bug affecting unaligned BOs was fixed.

- r300c: a hardlock caused by ARB_half_float_vertex incorrectly advertised on some chipsets.