# Mesa 12.0.6 Release Notes / January 23, 2017

Mesa 12.0.6 is a bug fix release which fixes bugs found since the 12.0.5 release.

Mesa 12.0.6 implements the OpenGL 4.3 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 4.3. OpenGL 4.3 is only available if requested at context creation because compatibility contexts are not supported.

## SHA256 checksums

    65339ba5d76a45225b8b56f9a1da9db15c569e1d163760faa2921da0a8461741  mesa-12.0.6.tar.gz
    7d6da9744c1022a4c2ab6ad01a206984d00443fb691568011d01b3dd97e36448  mesa-12.0.6.tar.xz

## New features

None

## Bug fixes

This list is likely incomplete.

- Bug 92234 - [BDW] GPU hang in Shogun2

- Bug 95130 - Derivatives of gl_Color wrong when helper pixels used

- Bug 98329 - [dEQP, EGL, SKL, BDW, BSW] dEQP-EGL.functional.image.render_multiple_contexts.gles2_renderbuffer_depth16_depth_buffer

- Bug 99030 - [HSW, regression] transform feedback fails on Linux 4.8

- Bug 99354 - [G71] “Assertion `bkref’ failed” reproducible with glmark2

## Changes

Chad Versace (3):

- i965/mt: Disable aux surfaces after making miptree shareable

- i965/mt: Disable HiZ when sharing depth buffer externally (v2)

- anv: Handle vkGetPhysicalDeviceQueueFamilyProperties with count == 0

Emil Velikov (5):

- docs: add sha256 checksums for 12.0.5

- get-typod-pick-list.sh: add new script

- automake: use shared llvm libs for make distcheck

- egl/wayland: use the destroy_window_callback for swrast

- Update version to 12.0.6

Fredrik Höglund (1):

- dri3: Fix MakeCurrent without a default framebuffer

Ilia Mirkin (1):

- nouveau: take extra push space into account for pushbuf_space calls

Faith Ekstrand (19):

- spirv/nir: Fix some texture opcode asserts

- spirv/nir: Add support for shadow samplers that return vec4

- spirv/nir: Properly handle gather components

- anv/pipeline: Set binding_table.gather_texture_start

- nir: Add a helper for determining the type of a texture source

- nir/lower_tex: Add some helpers for working with tex sources

- nir/lower_tex: Add support for lowering coordinate offsets

- i965/nir: Enable NIR lowering of txf and rect offsets

- i965: Get rid of the do_lower_unnormalized_offsets pass

- spirv/nir: Don’t increment coord_components for array lod queries

- anv/image: Assert that the image format is actually supported

- spirv/nir: Move opcode selection higher up in handle_texture

- spirv/nir: Refactor type handling in handle_texture

- nir/spirv: Refactor coordinate handling in handle_texture

- spirv/nir: Handle texture projectors

- spirv/nir: Add support for ImageQuerySamples

- anv/device: Return the right error for failed maps

- anv/device: Implicitly unmap memory objects in FreeMemory

- anv/descriptor_set: Write the state offset in the surface state free list.

Kenneth Graunke (2):

- spirv: Move cursor before calling vtn_ssa_value() in phi 2nd pass.

- i965: Properly flush in hsw_pause_transform_feedback().

Marek Olšák (6):

- cso: don’t release sampler states that are bound

- radeonsi: always restore sampler states when unbinding sampler views

- radeonsi: fix incorrect FMASK checking in bind_sampler_states

- radeonsi: disable CE on SI + AMDGPU

- radeonsi: disable the constant engine (CE) on Carrizo and Stoney

- gallium/radeon: fix the draw-calls HUD query

Matt Turner (3):

- i965/fs: Rename opt_copy_propagate -> opt_copy_propagation.

- i965/fs: Add unit tests for copy propagation pass.

- i965/fs: Reject copy propagation into SEL if not min/max.

Michel Dänzer (1):

- cso: Don’t restore nr_samplers in cso_restore_fragment_samplers

Nicolai Hähnle (1):

- radeonsi: enable WQM in PS prolog when needed