# Mesa 19.3.1 Release Notes / 2019-12-18

Mesa 19.3.1 is a bug fix release which fixes bugs found since the 19.3.0 release.

Mesa 19.3.1 implements the OpenGL 4.6 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 4.6. OpenGL 4.6 is only available if requested at context creation. Compatibility contexts may report a lower version depending on each driver.

Mesa 19.3.1 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

    cd951db69c56a97ff0570a7ab2c0e39e6c5323f4cd8f4eb8274723e033beae59  mesa-19.3.1.tar.xz

## New features

- None

## Bug fixes

- i965/iris: assert when destroy GL context with active query

- Visuals without alpha bits are not sRGB-capable

- radv secure compile feature breaks compilation of RADV on armhf EABI (19.3-rc1)

## Changes

Bas Nieuwenhuizen (2):

- amd/common: Fix tcCompatible degradation on Stoney.

- amd/common: Always use addrlib for HTILE tc-compat.

Dylan Baker (3):

- docs/19.3.0: Add SHA256 sums

- cherry-ignore: update for the 19.3.1 cycle

- docs: remove new_features.txt from stable branch

Gert Wollny (1):

- virgl: Increase the shader transfer buffer by doubling the size

Iván Briano (1):

- anv: Export filter_minmax support only when it’s really supported

Kenneth Graunke (1):

- iris: Default to X-tiling for scanout buffers without modifiers

Lionel Landwerlin (2):

- anv: fix fence underlying primitive checks

- mesa: avoid triggering assert in implementation

Luis Mendes (1):

- radv: fix radv secure compile feature breaks compilation on armhf EABI and aarch64

Tapani Pälli (2):

- dri: add __DRI_IMAGE_FORMAT_SXRGB8

- i965: expose MESA_FORMAT_B8G8R8X8_SRGB visual