# Mesa 19.2.5 Release Notes / 2019-11-20

Mesa 19.2.5 is a bug fix release which fixes bugs found since the 19.2.4 release.

Mesa 19.2.5 implements the OpenGL 4.5 API, but the version reported by glGetString(GL_VERSION) or glGetIntegerv(GL_MAJOR_VERSION) / glGetIntegerv(GL_MINOR_VERSION) depends on the particular driver being used. Some drivers don’t support all the features required in OpenGL 4.5. OpenGL 4.5 is only available if requested at context creation. Compatibility contexts may report a lower version depending on each driver.

Mesa 19.2.5 implements the Vulkan 1.1 API, but the version reported by the apiVersion property of the VkPhysicalDeviceProperties struct depends on the particular driver being used.

## SHA256 checksum

    3d010a366b28d10bdd71e32091d8684baf1522e6466c5c5703667091b2108c8b  mesa-19.2.5.tar.xz

## New features

- None

## Bug fixes

- HSW. Tropico 6 and SuperTuxKart have shadows flickering

- glxgears segfaults on POWER / Xvnc

- Cannot start Civ6 with AMD GPU on Linux

## Changes

Ben Crocker (1):

- llvmpipe: use ppc64le/ppc64 Large code model for JIT-compiled shaders

Brian Paul (1):

- Call shmget() with permission 0600 instead of 0777

Caio Marcelo de Oliveira Filho (1):

- spirv: Don’t leak GS initialization to other stages

Danylo Piliaiev (1):

- i965: Unify CC_STATE and BLEND_STATE atoms on Haswell as a workaround

Dylan Baker (2):

- docs: Add SHA256 sum for for 19.2.4

- cherry-ignore: Update for 19.2.4 cycle

Eric Engestrom (1):

- egl: fix _EGL_NATIVE_PLATFORM fallback

Ian Romanick (2):

- nir/algebraic: Add the ability to mark a replacement as exact

- nir/algebraic: Mark other comparison exact when removing a == a

Illia Iorin (1):

- mesa/main: Ignore filter state for MS texture completeness

Faith Ekstrand (1):

- anv: Stop bounds-checking pushed UBOs

Lepton Wu (1):

- gallium: dri2: Use index as plane number.

Lionel Landwerlin (3):

- anv: invalidate file descriptor of semaphore sync fd at vkQueueSubmit

- anv: remove list items on batch fini

- anv/wsi: signal the semaphore in the acquireNextImage

Marek Olšák (3):

- st/mesa: fix Sanctuary and Tropics by disabling ARB_gpu_shader5 for them

- tgsi_to_nir: fix masked out image loads

- tgsi_to_nir: handle PIPE_FORMAT_NONE in image opcodes

Paulo Zanoni (1):

- intel/compiler: fix nir_op_{i,u}*32 on ICL

Pierre-Eric Pelloux-Prayer (3):

- radeonsi: disable sdma for gfx10

- radeonsi: tell the shader disk cache what IR is used

- radeonsi: fix shader disk cache key