# Mesa 19.2.8 Release Notes / 2019-12-18

Mesa 19.2.8 is a bug fix release which fixes bugs found since the 19.2.7 release.

Mesa 19.2.8 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 19.2.8 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

    cffa8fa755c7422ce014c39ca0b770a092d9e0bbae537ceb2609c106916e5a57  mesa-19.2.8.tar.xz

## New features

- None

## Bug fixes

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

## Changes

Alyssa Rosenzweig (1):

- gallium/util: Support POLYGON in u_stream_outputs_for_vertices

Bas Nieuwenhuizen (2):

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

- amd/common: Fix tcCompatible degradation on Stoney.

Dylan Baker (4):

- docs: Add SHA256 sums for 19.2.7

- meson/broadcom: libbroadcom_cle needs expat headers

- meson/broadcom: libbroadcom_cle also needs zlib

- cherry-ignore: Update for 19.2.8

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

Faith Ekstrand (2):

- anv: Re-emit all compute state on pipeline switch

- anv: Don’t leak when set_tiling fails

Kenneth Graunke (1):

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

Lionel Landwerlin (7):

- intel/perf: fix invalid hw_id in query results

- intel/perf: set read buffer len to 0 to identify empty buffer

- intel/perf: take into account that reports read can be fairly old

- intel/perf: simplify the processing of OA reports

- intel/perf: fix improper pointer access

- anv: fix fence underlying primitive checks

- mesa: avoid triggering assert in implementation

Nanley Chery (2):

- gallium/dri2: Fix creation of multi-planar modifier images

- gallium: Store the image format in winsys_handle

Rob Clark (1):

- nir/lower_clip: Fix incorrect driver loc for clipdist outputs

Timothy Arceri (1):

- glsl/nir: iterate the system values list when adding varyings