Libraries Changes for Blender 3.0 #88438

New Issue

Ray molenkamp · 2021-05-20T20:15:45+02:00

Ray molenkamp commented

2021-05-20 20:15:45 +02:00

Here is the list of all expected changes to our libraries for Blender 3.0 release.

for 2.93 we added some libraries versions for Mac/Arm for 3.0 in different versions than what the other platforms use, I'd like to straighten that out for 3.0 so all platforms will once more be on identical versions.

Still up for discussion

dep	Blender	Latest	Notes
OPENAL	1.20.1	1.21.0
JPEG	2.0.4	2.1.0
BOOST	1.73.0	1.76.0
BLOSC	1.5.0	v1.21.0
OPENEXR	2.5.5	v3.0.3
FREETYPE	2.10.2	2.10.4
OPENSUBDIV	v3_4_3	3.4.4
SDL	2.0.12	2.0.14
OPENCOLORIO	2.0.0	v2.0.1
TIFF	4.1.0	v4.3.0
TBB	2020_U2	v2021.2.0
VORBIS	1.3.6	1.3.7
VPX	1.8.2	1.10.0
X264	33f9e1474613f59392be5ab6a7e7abf60fa63622		Does not do versions
OPENJPEG	2.3.1	v2.4.0
FFTW	3.3.8	3.3.9
XML2	2.9.10	2.9.12
TINYXML	2_6_2	2.6.2
EXPAT	2_2_10	R_2_4_1
PUGIXML	1.10	v1.11.4
SSL	1.1.1i	1.1.1k
SQLITE	3.31.1	3.35.5
EMBREE	3.10.0	v3.13.0
USD	21.02	v21.05
NASM	2.15.02	2.15.5

Marked for update

dep	Blender	Latest
OIDN	1.3.0	v1.4.1
FFMPEG	4.2.3	4.4
GMP	6.2.0	6.2.1
LLVM	9.0.1	llvmorg-12.0.0
OPENIMAGEIO	2.1.15.0	v2.2.14.0
ISPC	v1.14.1	v1.16.0
OSL	1.11.10.0	v1.11.14.1
XR_OPENXR_SDK	1.0.14	1.0.17
MESA	20.3.4	21.1.5
PYTHON	3.9.2	3.9.7
CERTIFI	2020.12.5	2021.10.8
CYTHON	0.29.21	0.29.24
IDNA	2.10	3.2
NUMPY	1.19.5	1.21.2
REQUESTS	2.25.1	2.26.0
URLLIB3	1.26.3	1.26.7

Marked for removal

dep	Blender	Latest	reason	DIFF
CHARDET	4.0.0	4.0.0	Replaced by chardet_normalizer	D12777

Deps not updated

dep	Blender	Latest
ZLIB	1.2.11	1.2.11
PNG	1.6.37	1.6.37
PTHREADS	3.0.0	3.0.0
OPENCOLLADA	v1.6.68	v1.6.68
OPENVDB	8.0.1	v8.0.1
LAME	3.100	3.100
OGG	1.3.4	1.3.4
THEORA	1.1.1	1.1.1
FLAC	1.3.3	1.3.3
OPUS	1.3.1	1.3.1
XVIDCORE	1.3.7	1.3.7
ICONV	1.16	1.16
SNDFILE	1.0.28	1.0.28
SPNAV	0.2.3	libspnav-0.2.3
JEMALLOC	5.2.1	5.2.1
YAMLCPP	0.6.3	yaml-cpp-0.6.3
BZIP2	1.0.8	1.0.8
FFI	3.3	v3.3
LZMA	5.2.5	5.2.5
LIBGLU	9.0.1	glu-9.0.1
POTRACE	1.16	1.16
HARU	2_3_0	RELEASE_2_3_0
ALEMBIC	1.7.16	1.8.1

New Libraries

zstd D5799: Add support for Zstd compression for .blend files
- Update CMake deps builder ( D11079 )
- Add Package file to SVN ({rBL62657})
- Add precompiled libraries
  - Windows ({rBL62656})
  - Linux ({rBL62663})
  - macOS Intel ({rBL62679})
  - macOS Arm ({rBL62676})
- Update install_deps script (4d28703277)
Python D12777: Bump Python to 3.9.7, add zstandard package, and bump other packages to latest versions
- Update CMake deps builder ( D12777: Bump Python to 3.9.7, add zstandard package, and bump other packages to latest versions )
- Add Package file to SVN ({rBL62731})
- Add precompiled libraries
  - Windows ({rBL62735})
  - Linux ({rBL62730})
  - macOS Intel ({rBL62725})
  - macOS Arm ({rBL62724})
- Update install_deps script (D12777: Bump Python to 3.9.7, add zstandard package, and bump other packages to latest versions )
- Update bundled modules test, after all platforms are updated (P2515) ( aea2287af3 )
Flex (for compatibility with new ISPC)
- Update CMake deps builder ( D11748 )
- Add Package file to SVN (rBL62664)
- Add precompiled libraries (not necessary, deps-build-time dep only)
- Update install_deps script (12d93e44d0)
Wayland Protocols
- Update CMake deps builder ( D11824 )
- Add Package file to SVN (rBL62654)
- Add precompiled libraries (not necessary, deps-build-time dep only)
- Update install_deps script (D1182)

Updated Libraries

ISPC v1.16.0
- Update CMake deps builder ( D11748 )
- Add Package file to SVN ( {rBL62665} )
- Add precompiled libraries (not necessary, deps-build-time dep only)
- Update install_deps script (33322086f6)
LLVM 12.0.0
- Update CMake deps builder ( D11748 )
- Add Package file to SVN
- Add precompiled libraries
  - Windows ({rBL62668})
  - Linux ({rBL62660})
  - macOS Intel ({rBL62670}, {rBL62672}, {rBL62673})
  - macOS Arm ({rBL62676})
- Update install_deps script (bd2bfa469f)
MESA 21.1.5
- Update CMake deps builder ( D11748 )
- Add Package file to SVN ( {rBL62665} )
- Add precompiled libraries
  - Windows (not applicable)
  - Linux ({rBL62660})
  - macOS Intel (not applicable)
  - macOS Arm (not applicable)
- Update install_deps script (not applicable, always using system mesa)
OpenImageIO 2.2.15.1
- Update CMake deps builder ( D11748 )
- Add Package file to SVN ( {rBL62665} )
- Add precompiled libraries
  - Windows ({rBL62668})
  - Linux ({rBL62660})
  - macOS Intel ({rBL62670})
  - macOS Arm ({rBL62676})
- Update install_deps script (21b4799793)
OpenImageDenoise 1.4.1 (some platforms already upgraded to 1.4.0 but need to be done again) ( #88434 )
- Update CMake deps builder ( D11748 )
- Add Package file to SVN ( {rBL62665} )
- Add precompiled libraries
  - Windows (({rBL62668}))
  - Linux ({rBL62660})
  - macOS Intel ({rBL62670})
  - macOS Arm ({rBL62676})
- Update install_deps script (33322086f6)
OSL 1.11.14.1
- Update CMake deps builder ( D11748 )
- Add Package file to SVN ( {rBL62665} )
- Add precompiled libraries
  - Windows ({rBL62668})
  - Linux ({rBL62660})
  - macOS Intel ({rBL62670})
  - macOS Arm ({rBL62676})
- Update install_deps script (ceec7cabf5)
FFMPEG 4.4 ( D11392 )
- Update CMake deps builder (95690dd362, 93a865dde7, 214a78a46f), 1af722b819, a78d3c5261.
- Add Package file to SVN (rBL62636)
- Add precompiled libraries
  - Windowsr {rBL62702} {rBL62629} ({rBL62669})
  - Linux ({rBL62628}, {rBL62666}, {rBL62713})
  - macOS Intel ({rBL62631}, {rBL62671}, {rBL62715}),
  - macOS Arm ({rBL62676}) ({rBL62705})
- Update install_deps script (95690dd362, 93a865dde7, 214a78a46f).
OpenXR 1.0.17
- Update CMake deps builder (b69ab42982)
- Add Package file to SVN( {rBL62653} )
- Add precompiled libraries
  - Windows ( {rBL62652} )
  - Linux ({rBL62650})
  - macOS Intel - Not available on mac
  - macOS Arm - Not available on mac
- Update install_deps script (b69ab42982)

Here is the list of all expected changes to our libraries for Blender 3.0 release. for 2.93 we added some libraries versions for Mac/Arm for 3.0 in different versions than what the other platforms use, I'd like to straighten that out for 3.0 so all platforms will once more be on identical versions. **Still up for discussion** |dep|Blender|Latest|Notes | -- | -- | -- | -- | |OPENAL|1.20.1|1.21.0| || |JPEG|2.0.4|2.1.0| || |BOOST|1.73.0|1.76.0| || |BLOSC|1.5.0|v1.21.0| || |OPENEXR|2.5.5|v3.0.3| || |FREETYPE|2.10.2|2.10.4| || |OPENSUBDIV|v3_4_3|3.4.4| || |SDL|2.0.12|2.0.14| || |OPENCOLORIO|2.0.0|v2.0.1| || |TIFF|4.1.0|v4.3.0| || |TBB|2020_U2|v2021.2.0| || |VORBIS|1.3.6|1.3.7| || |VPX|1.8.2|1.10.0| || |X264|33f9e1474613f59392be5ab6a7e7abf60fa63622||Does not do versions|| |OPENJPEG|2.3.1|v2.4.0| || |FFTW|3.3.8|3.3.9| || |XML2|2.9.10|2.9.12| || |TINYXML|2_6_2|2.6.2| || |EXPAT|2_2_10|R_2_4_1| || |PUGIXML|1.10|v1.11.4| || |SSL|1.1.1i|1.1.1k| || |SQLITE|3.31.1|3.35.5| || |EMBREE|3.10.0|v3.13.0| || |USD|21.02|v21.05| || |NASM|2.15.02|2.15.5| || **Marked for update** |dep|Blender|Latest| | -- | -- | -- | |OIDN|1.3.0|v1.4.1| |FFMPEG|4.2.3|4.4| |GMP|6.2.0|6.2.1| |LLVM|9.0.1|llvmorg-12.0.0| |OPENIMAGEIO|2.1.15.0|v2.2.14.0| |ISPC|v1.14.1|v1.16.0| |OSL|1.11.10.0|v1.11.14.1| |XR_OPENXR_SDK|1.0.14|1.0.17| |MESA|20.3.4|21.1.5| |PYTHON|3.9.2|3.9.7| |CERTIFI|2020.12.5|2021.10.8| |CYTHON|0.29.21 |0.29.24| |IDNA|2.10 |3.2| |NUMPY|1.19.5 |1.21.2| |REQUESTS|2.25.1 |2.26.0| |URLLIB3|1.26.3 |1.26.7| **Marked for removal** |dep|Blender|Latest|reason|DIFF| | -- | -- | -- | -- | -- | |CHARDET|4.0.0|4.0.0|Replaced by chardet_normalizer|[D12777](https://archive.blender.org/developer/D12777)| **Deps not updated** |dep|Blender|Latest| | -- | -- | -- | |ZLIB|1.2.11|1.2.11||| |PNG|1.6.37|1.6.37||| |PTHREADS|3.0.0|3.0.0||| |OPENCOLLADA|v1.6.68|v1.6.68||| |OPENVDB|8.0.1|v8.0.1||| |LAME|3.100|3.100||| |OGG|1.3.4|1.3.4||| |THEORA|1.1.1|1.1.1||| |FLAC|1.3.3|1.3.3||| |OPUS|1.3.1|1.3.1||| |XVIDCORE|1.3.7|1.3.7||| |ICONV|1.16|1.16||| |SNDFILE|1.0.28|1.0.28||| |SPNAV|0.2.3|libspnav-0.2.3||| |JEMALLOC|5.2.1|5.2.1||| |YAMLCPP|0.6.3|yaml-cpp-0.6.3||| |BZIP2|1.0.8|1.0.8||| |FFI|3.3|v3.3||| |LZMA|5.2.5|5.2.5||| |LIBGLU|9.0.1|glu-9.0.1||| |POTRACE|1.16|1.16||| |HARU|2_3_0|RELEASE_2_3_0||| |ALEMBIC|1.7.16|1.8.1| We stay at 1.7.x for VFX Platform 2021 compatibility || New Libraries **** - [x] zstd [D5799: Add support for Zstd compression for .blend files](https://archive.blender.org/developer/D5799) - [x] Update CMake deps builder ( [D11079](https://archive.blender.org/developer/D11079) ) - [x] Add Package file to SVN ({rBL62657}) - [x] Add precompiled libraries - [x] Windows ({rBL62656}) - [x] Linux ({rBL62663}) - [x] macOS Intel ({rBL62679}) - [x] macOS Arm ({rBL62676}) - [x] Update `install_deps` script (4d28703277) - [x] Python [D12777: Bump Python to 3.9.7, add zstandard package, and bump other packages to latest versions](https://archive.blender.org/developer/D12777) - [x] Update CMake deps builder ( [D12777: Bump Python to 3.9.7, add zstandard package, and bump other packages to latest versions](https://archive.blender.org/developer/D12777) ) - [x] Add Package file to SVN ({rBL62731}) - [x] Add precompiled libraries - [x] Windows ({rBL62735}) - [x] Linux ({rBL62730}) - [x] macOS Intel ({rBL62725}) - [x] macOS Arm ({rBL62724}) - [x] Update `install_deps` script ([D12777: Bump Python to 3.9.7, add zstandard package, and bump other packages to latest versions](https://archive.blender.org/developer/D12777) ) - [x] Update bundled modules test, after all platforms are updated ([P2515](https://archive.blender.org/developer/P2515.txt)) ( aea2287af3 ) - [x] Flex (for compatibility with new ISPC) - [x] Update CMake deps builder ( [D11748](https://archive.blender.org/developer/D11748) ) - [x] Add Package file to SVN (rBL62664) - [x] Add precompiled libraries (not necessary, deps-build-time dep only) - [x] Update `install_deps` script (12d93e44d0) - [x] Wayland Protocols - [x] Update CMake deps builder ( [D11824](https://archive.blender.org/developer/D11824) ) - [x] Add Package file to SVN (rBL62654) - [x] Add precompiled libraries (not necessary, deps-build-time dep only) - [x] Update `install_deps` script ([D1182](https://archive.blender.org/developer/D1182)) Updated Libraries **** - [x] ISPC v1.16.0 - [x] Update CMake deps builder ( [D11748](https://archive.blender.org/developer/D11748) ) - [x] Add Package file to SVN ( {rBL62665} ) - [x] Add precompiled libraries (not necessary, deps-build-time dep only) - [x] Update `install_deps` script (33322086f6) - [x] LLVM 12.0.0 - [x] Update CMake deps builder ( [D11748](https://archive.blender.org/developer/D11748) ) - [x] Add Package file to SVN - [x] Add precompiled libraries - [x] Windows ({rBL62668}) - [x] Linux ({rBL62660}) - [x] macOS Intel ({rBL62670}, {rBL62672}, {rBL62673}) - [x] macOS Arm ({rBL62676}) - [x] Update `install_deps` script (bd2bfa469f) - [x] MESA 21.1.5 - [x] Update CMake deps builder ( [D11748](https://archive.blender.org/developer/D11748) ) - [x] Add Package file to SVN ( {rBL62665} ) - [x] Add precompiled libraries - [x] Windows (not applicable) - [x] Linux ({rBL62660}) - [x] macOS Intel (not applicable) - [x] macOS Arm (not applicable) - [x] Update `install_deps` script *(not applicable, always using system mesa)* - [x] OpenImageIO 2.2.15.1 - [x] Update CMake deps builder ( [D11748](https://archive.blender.org/developer/D11748) ) - [x] Add Package file to SVN ( {rBL62665} ) - [x] Add precompiled libraries - [x] Windows ({rBL62668}) - [x] Linux ({rBL62660}) - [x] macOS Intel ({rBL62670}) - [x] macOS Arm ({rBL62676}) - [x] Update `install_deps` script (21b4799793) - [x] OpenImageDenoise 1.4.1 (some platforms already upgraded to 1.4.0 but need to be done again) ( #88434 ) - [x] Update CMake deps builder ( [D11748](https://archive.blender.org/developer/D11748) ) - [x] Add Package file to SVN ( {rBL62665} ) - [x] Add precompiled libraries - [x] Windows (({rBL62668})) - [x] Linux ({rBL62660}) - [x] macOS Intel ({rBL62670}) - [x] macOS Arm ({rBL62676}) - [x] Update `install_deps` script (33322086f6) - [x] OSL 1.11.14.1 - [x] Update CMake deps builder ( [D11748](https://archive.blender.org/developer/D11748) ) - [x] Add Package file to SVN ( {rBL62665} ) - [x] Add precompiled libraries - [x] Windows ({rBL62668}) - [x] Linux ({rBL62660}) - [x] macOS Intel ({rBL62670}) - [x] macOS Arm ({rBL62676}) - [x] Update `install_deps` script (ceec7cabf5) - [x] FFMPEG 4.4 ( [D11392](https://archive.blender.org/developer/D11392) ) - [x] Update CMake deps builder (95690dd362, 93a865dde7, 214a78a46f), 1af722b819, a78d3c5261. - [x] Add Package file to SVN (rBL62636) - [x] Add precompiled libraries - [x] Windowsr {rBL62702} {rBL62629} ({rBL62669}) - [x] Linux ({rBL62628}, {rBL62666}, {rBL62713}) - [x] macOS Intel ({rBL62631}, {rBL62671}, {rBL62715}), - [x] macOS Arm ({rBL62676}) ({rBL62705}) - [x] Update `install_deps` script (95690dd362, 93a865dde7, 214a78a46f). - [x] OpenXR 1.0.17 - [x] Update CMake deps builder (b69ab42982) - [x] Add Package file to SVN( {rBL62653} ) - [x] Add precompiled libraries - [x] Windows ( {rBL62652} ) - [x] Linux ({rBL62650}) - [x] macOS Intel - Not available on mac - [x] macOS Arm - Not available on mac - [x] Update `install_deps` script (b69ab42982)

Ray molenkamp self-assigned this 2021-05-20 20:15:45 +02:00

Ray molenkamp commented

2021-05-20 20:15:45 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Ray molenkamp commented

2021-05-20 20:15:45 +02:00

Added subscriber: @LazyDodo

blender-admin commented

2021-05-20 20:15:45 +02:00

This issue was referenced by 8bd09b1d77

This issue was referenced by 8bd09b1d77a3b83f7725c6794132bcec5018506f

Ray molenkamp commented

2021-05-25 03:43:06 +02:00

I did a survey of all libraries, these are correct to the best of my knowledge but mistakes could have slipped in, some of these we can't update because of VFX platform (ie boost), some of these we can't update because of dep requirements on a specific version (ie blosc).

Lasse Foster commented

2021-05-25 17:08:52 +02:00

Added subscriber: @LasseFoster-2

Ankit Meel commented

2021-06-06 09:41:07 +02:00

Added subscriber: @ankitm

Ankit Meel commented

2021-06-06 09:41:07 +02:00

Is clang-format an issue big enough to trigger a lib update ?
arm mac has LLVM 11.0.1 and other three platforms have 9.x. That creates some mismatch in formatting:

https://stackoverflow.com/questions/65964384/how-to-make-clang-format-11-put-a-space-after-variadic-template-decleration/67724531#67724531 [1]
Ternary operator formatting [2]

Space before const qualifier [3]

Although I have version 13, at least one of these is present with version 11 too.

1

-  template<typename T, typename... Args> T *create_node(Args &&... args)
+  template<typename T, typename... Args> T *create_node(Args &&...args)

2

-               id == 1 ? \
-               tile_buffer_2 : \
-               id == 2 ? \
-               tile_buffer_3 : \
-               id == 3 ? tile_buffer_4 : \
-                         id == 4 ? tile_buffer_5 : \
-                                   id == 5 ? tile_buffer_6 : \
-                                             id == 6 ? tile_buffer_7 : \
-                                                       id == 7 ? tile_buffer_8 : tile_buffer_9)
+     id == 1 ? tile_buffer_2 : \
+     id == 2 ? tile_buffer_3 : \
+     id == 3 ? tile_buffer_4 : \
+     id == 4 ? tile_buffer_5 : \
+     id == 5 ? tile_buffer_6 : \
+     id == 6 ? tile_buffer_7 : \
+     id == 7 ? tile_buffer_8 : \
+               tile_buffer_9)

[3]

-  __forceinline operator const __m128 &(void)const
+  __forceinline operator const __m128 &(void) const

Full changes:clang_format_13_vs_9.diff

Is clang-format an issue big enough to trigger a lib update ? arm mac has LLVM 11.0.1 and other three platforms have 9.x. That creates some mismatch in formatting: - https://stackoverflow.com/questions/65964384/how-to-make-clang-format-11-put-a-space-after-variadic-template-decleration/67724531#67724531 [1] - Ternary operator formatting [2] # Space before const qualifier [3] Although I have version 13, at least one of these is present with version 11 too. 1 ``` - template<typename T, typename... Args> T *create_node(Args &&... args) + template<typename T, typename... Args> T *create_node(Args &&...args) ``` 2 ``` - id == 1 ? \ - tile_buffer_2 : \ - id == 2 ? \ - tile_buffer_3 : \ - id == 3 ? tile_buffer_4 : \ - id == 4 ? tile_buffer_5 : \ - id == 5 ? tile_buffer_6 : \ - id == 6 ? tile_buffer_7 : \ - id == 7 ? tile_buffer_8 : tile_buffer_9) + id == 1 ? tile_buffer_2 : \ + id == 2 ? tile_buffer_3 : \ + id == 3 ? tile_buffer_4 : \ + id == 4 ? tile_buffer_5 : \ + id == 5 ? tile_buffer_6 : \ + id == 6 ? tile_buffer_7 : \ + id == 7 ? tile_buffer_8 : \ + tile_buffer_9) ``` [3] ``` - __forceinline operator const __m128 &(void)const + __forceinline operator const __m128 &(void) const ``` Full changes:[clang_format_13_vs_9.diff](https://archive.blender.org/developer/F10159645/clang_format_13_vs_9.diff)

Ray molenkamp commented

2021-06-06 09:54:44 +02:00

Is clang-format an issue big enough to trigger a lib update ? arm mac has LLVM 11.0.1 and other three platforms have 9.x.

As per my opening post, I'd like to re-align all platforms to be on identical versions again.

>Is clang-format an issue big enough to trigger a lib update ? arm mac has LLVM 11.0.1 and other three platforms have 9.x. As per my opening post, I'd like to re-align all platforms to be on identical versions again.

Pratik Borhade commented

2021-06-06 11:13:30 +02:00

Added subscriber: @PratikPB2123

Sybren A. Stüvel commented

2021-06-10 10:27:44 +02:00

Added subscriber: @dr.sybren

Sybren A. Stüvel commented

2021-06-10 10:27:44 +02:00

Alembic 1.8.2 was just released. Shall we target that one instead of 1.8.1? The changes really are minor, and I don't expect they'll even influence Blender, but that way at least we're at the latest version.

[Alembic 1.8.2](https://github.com/alembic/alembic/releases/tag/1.8.2) was just released. Shall we target that one instead of 1.8.1? The changes really are minor, and I don't expect they'll even influence Blender, but that way at least we're at the latest version.

Ray molenkamp commented

2021-06-18 15:25:19 +02:00

[edit] oops looks like i replied to you on june 10th but didn't hit submit

@dr.sybren sounds good to me, alembic is by all means "your dep" so wearing that hat, you can request whatever version you desire no need to look for consensus

[edit] oops looks like i replied to you on june 10th but didn't hit submit @dr.sybren sounds good to me, alembic is by all means "your dep" so wearing that hat, you can request whatever version you desire no need to look for consensus

Leon Zandman commented

2021-06-22 08:44:24 +02:00

Added subscriber: @Zandman

Ray molenkamp commented

2021-06-25 23:21:17 +02:00

@dr.sybren small note though on alembic, 1.8 this early would divert from the vfxplatform which has 1.8 only on the CY2022 DRAFT spec

@dr.sybren small note though on alembic, 1.8 this early would divert from the vfxplatform which has 1.8 only on the `CY2022 DRAFT` spec

Sybren A. Stüvel commented

2021-06-29 13:11:51 +02:00

@LazyDodo good point. I don't think there are any new features in 1.8 that Blender would actually be using, so it's fine by me to stick to the latest 1.7.x for now.

blender-admin commented

2021-07-02 18:58:31 +02:00

This issue was referenced by 00e30f122b

This issue was referenced by 00e30f122bde473343bf0afb85358a88a538cb6d

Brecht Van Lommel commented

2021-07-02 19:09:35 +02:00

Added subscriber: @brecht

Brecht Van Lommel commented

2021-07-02 19:09:35 +02:00

I upgraded NanoVDB to the latest revision, since it was needed for a bugfix. This is a header-only library, so I updated all the platform myself, no further work from platform maintainers needed.