mesa/docs/relnotes/26.0.1.rst

Mesa 26.0.1 Release Notes / 2026-02-25
======================================

Mesa 26.0.1 is a bug fix release which fixes bugs found since the 26.0.0 release.

Mesa 26.0.1 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 26.0.1 implements the Vulkan 1.4 API, but the version reported by
the apiVersion property of the VkPhysicalDeviceProperties struct
depends on the particular driver being used.

SHA checksums
-------------

::

    SHA256: bb5104f9f9a46c9b5175c24e601e0ef1ab44ce2d0fdbe81548b59adc8b385dcc  mesa-26.0.1.tar.xz
    SHA512: d47072257035acfa8a5594c0cda831b4e5178169dea8a06c6657268a441e32271f8798486e837cea23f35ce3f0b4b9520a4ea4ed26b0e1267b02da4c649bc9f9  mesa-26.0.1.tar.xz


New features
------------

- None


Bug fixes
---------

- Missing Haswell case after a097a3d214eda7fb7b9ff63176754b7260e09e03 leads to bogus assert in intel_perf_mdapi.c
- Question: Does building Lavapipe on Windows require building "microsoft-experimental" as well?
- [ANV]: Regression in dxvk Greedfall
- [ANV][BMG] Building Mesa with Clang causes Missing Skin Textures in UE games - Tekken 8
- [ANV][DG2][Regression]: Flickering water "boxes" in Civilization VII
- [RADV] Killer7 has a blue tint with RDNA3/4
- [bisected] Xe3 regression with piglit tess/barrier-patch.shader_test after cmod prop change
- [radeonsi] Regression: GL_FEEDBACK returns 0.0 for X-coordinates (Legacy GL)
- anv, bisected: Genshin Impact wrong shadows, flickering grass
- turnip: llama.cpp: Running test-backend-ops results in segmentation fault
- venus crashes in vn_CreateDevice() with latest mesa/main [bisected]


Changes
-------

Aitor Camacho (7):

- wsi/metal: Expose additional color spaces if instance extension enabled
- kk: Fill pipelineUUID
- kk: Fix shader uint32_t value serialization
- kk: Correctly release pipeline handles at shader destroy
- kk: Fix compute pipeline cache
- kk: Move gfx pipeline data to the info struct within kk_shader
- kk: Fix graphics pipeline serialization

Alyssa Rosenzweig (1):

- brw: drop buggy SLM optimization

Anna Maniscalco (1):

- freedreno/common: set has_astc_hdr true for a7xx targets

Benjamin Otte (1):

- lavapipe: Fix features for nonsubsampled ycbcr formats

Daniel Schürmann (1):

- nir/clone: Fix cloning indirect call instructions

Danylo Piliaiev (1):

- ir3: Align TCS per-patch output to 64 bytes to prevent stale reads

Emma Anholt (1):

- ir3/ra: Fix DOUBLE_ONLY limit pressure computation.

Eric Engestrom (5):

- docs: add sha sum for 26.0.0
- .pick_status.json: Update to 03d2cc2b2ae5341409ee1fab74e98134a6df0511
- bin/gen_release_notes: fix support for python 3.14
- pick-ui: add \`Backport-to: \*` as a synonym to \`Cc: mesa-stable`
- .pick_status.json: Mark 7dd7731ac710b0c7213f6bb466b33f62eca80604 as denominated

Faith Ekstrand (6):

- pan/clear: Stop packing undefined bits in colors
- nir/gather_info: Add support for panfrost tile load/store intrinsics
- panvk: Create both Z/S descriptors, even for separate Z/S
- panvk/preload: Stop assuming 32 registers
- panvk/jm: Refactor BeginRendering()
- panvk: Also load output attachments with LOAD_OP_NONE+STORE_OP_NONE

Frank Binns (2):

- pvr/ci: move some timing out tests from fails to skips
- pvr: Fix alloc callbacks usage when freeing frame buffers

Ian Romanick (8):

- spirv: Use STACK_ARRAY instead of NIR_VLA
- nir: Use STACK_ARRAY instead of NIR_VLA
- brw: Call nir_opt_algebraic_late in brw_nir_create_raygen_trampoline
- brw: Call nir_opt_algebraic_late later in brw_postprocess_nir_opts
- elk: Call nir_opt_algebraic_late in elk_postprocess_nir
- brw/cmod: Don't propagate from CMP to ADD if there is a write between
- elk/cmod: Don't propagate from CMP to possible Inf + (-Inf)
- elk/cmod: Don't propagate from CMP to ADD if there is a write between

Janne Grunau (3):

- asahi: Use GPU for buffer copies in resource_copy_region()
- asahi: Implement clear_buffer using libagx_fill*
- hk: Use aligned vector fill in hk_CmdFillBuffer if possible

Jarred Davies (2):

- pvr: Fix allocating the required scratch buffer space for tile buffers
- pvr: Add missing support for tile buffers to SPM EOT programs

Jesse Natalie (1):

- meson: Include DirectX-Headers dependency for all VK Windows builds

Jianxun Zhang (1):

- anv: Limit modifier disabling workaround to specific GTK versions

José Roberto de Souza (1):

- intel/perf: Add HSW verx10 to intel_perf_query_result_write_mdapi()

Juston Li (1):

- anv: set missing protected bit for protected depth/stencil surfaces

Konstantin Seurer (2):

- radv: Fix setting the viewport for depth stencil FS resolves
- vulkan/cmd_queue: Fixup stride for multi draws

Lars-Ivar Hesselberg Simonsen (2):

- panvk: Fix dcd_flags1 dirty bit
- pan/genxml/v13: Fix HSR Prepass typo

Leon Perianu (1):

- pvr: fix format table properties duplicate

Lionel Landwerlin (8):

- anv: flush render caches on first pipeline select
- anv: fix nested command buffer relocations
- anv: add missing constant cache invalidation for descriptor buffers
- isl: fix 32bit math with 4GB buffer size
- anv: apply the same ccs disabling for Xe3 than Xe2
- anv: disable ccs modifier reporting when ccs modifiers are disabled
- anv: dirty descriptors after blorp operations
- anv: remove snprintf for aux op transition

Mary Guillemard (1):

- hk: Fix crash in hk_handle_passthrough_gs

Matt Turner (4):

- brw/cse: fix \`operands_match` corrupting non-IMM register data
- brw/cse: use copies in \`operands_match` instead of in-place modification
- elk/cse: fix \`operands_match` corrupting non-IMM register data
- elk/cse: use copies in \`operands_match` instead of in-place modification

Mike Blumenkrantz (2):

- zink: fix broken compiler assert
- zink: only do pre-sync transfer barrier after a renderpass

Natalie Vock (3):

- radv/rt: Only use ds_bvh_stack_rtn if the stack base is possible to encode
- radv: Initialize nir_lower_io_to_scalar progress variable
- radv/nir: Correctly handle workgroup sizes not aligned to 32

Nick Hamilton (5):

- pvr: Fix incorrect subpass merging optimisation
- pvr: Rename pvr_render_input_attachment
- pvr: Add missing support for preserve attachments
- pvr: Update CI fails list after render pass fixes
- pvr: Add support for fragment pass through shader

Olivia Lee (1):

- hk: fix passthrough GS key invalidation

Pavel Ondračka (2):

- r300: align macro-tiled stride-addressed textures in X
- mesa: implement FRAMEBUFFER_RENDERABLE internalformat query

Rhys Perry (3):

- aco: fix gfx6-8 store_scratch() with function calls
- aco: reset all vgpr_used_by_vmem\_ in resolve_all_gfx11
- aco: resolve hazards before calls

Robert Mader (1):

- lavapipe: enable dmabuf import for planar drm formats

Ryan Zhang (1):

- panvk: guard against NULL pointers to avoid crash

Samuel Pitoiset (5):

- ac,radv,radeonsi: use correct swizzle/pitch for depth-only images with SDMA
- radv: fix potential corruption after FMASK decompression on GFX6-8
- radv/meta: fix depth/stencil resolves with different regions
- ac/nir: fix writemask for dual source blending on GFX11+
- radv: fix potential GPU hangs with secondaries on transfer queue

Tapani Pälli (1):

- util: bring back fix to avoid strict aliasing bugs in xxhash

Timothy Arceri (2):

- mesa: add _mesa_lookup_state_param_idx() helper
- st/glsl_to_nir: make sure the variant has the correct locations set

Wei Hao (1):

- radeonsi: fix threaded shader compilation finishing after context is destroyed

Yiwei Zhang (2):

- venus: workaround a gcc-15 dead store elimination (DSE) bug
- venus: sync protocol for strict aliasing compliance