Sage 10.9.beta5 released

[Volker Braun]

As always, you can get the latest beta version from the "develop" git branch. Alternatively, the self-contained source tarball is at http://www.sagemath.org/download-latest.html

5473e598ac6 (tag: 10.9.beta5, github/develop) Updated SageMath version to 10.9.beta5
fba50d38ff8 gh-41553: fix the error message in #41502
980f51eedc7 gh-41561: fix doctest warning in `src/sage/rings/finite_rings/element_base.pyx`
169d9cefac6 gh-41551: Permutation return types
914f81e83a2 gh-41546: fix issue in `to_bytes()` for finite fields
affbd958d62 gh-41542: Deprec after 38184
fb101341865 gh-41541: typing in finite_state_machine generators
12210297d3a gh-41536: fix issue #41533
4990f435df0 gh-41534: fix relabelling of constellations
31e2c71c0bd gh-41529: fix .inverse_image() returning the zero element on the wrong curve
5eaad8d9c25 gh-41526: build/pkgs/m4ri: update to 20260122
bf241e6b5db gh-41524: Fix typo in developer docs for ruff, clearer wording
1e65633b662 gh-41522: Add missing files to documentation
192ba67c052 gh-41519: some cleanup in isogeny_small_degree.py
7716f6f7b90 gh-41517: remove deprecated stuff in modular
fcd93cf6070 gh-41516: add parameter immutable to graph generators in `smallgraphs.py` (part 11)
51435787b5b gh-41515: add parameter immutable to graph generators in `smallgraphs.py` (part 10)
3853a4c7afc gh-41512: add parameter immutable to graph generators in `smallgraphs.py` (part 8)
767b6882c15 gh-41511: add parameter immutable to graph generators in `smallgraphs.py` (part 7)
33f7586138c gh-41510: add parameter immutable to graph generators in `smallgraphs.py` (part 6)
cb76b69bdac gh-41509: add parameter immutable to graph generators in `smallgraphs.py` (part 5)
ecca4a31ea0 gh-41508: add parameter immutable to graph generators in `smallgraphs.py` (part 4)
4ecd80808a8 gh-41507: add parameter immutable to graph generators in `smallgraphs.py` (part 3)
cfc82d7b089 gh-41506: add parameter immutable to graph generators in `smallgraphs.py` (part 2)
329c2454f1f gh-41505: some typing annotations in rings/
ef174cdc989 gh-41502: Fix as_sum_of_permutations over inexact rings
0843c3e7709 gh-41501: add parameter immutable to graph generators in `smallgraphs.py` (part 1)
f81ddc2abc4 gh-41493: add parameter immutable to `(bi_|strongly_)connected_components_subgraphs`
5064c70e1b2 gh-41471: add parameter immutable to graph generators in families.py (part 3)
10c194b67a0 gh-41470: add parameter immutable to graph generators in families.py (part 2)
889e5ba0b50 gh-41467: add parameter immutable to graph generators in families.py (part 1)
2f1ddd563cc gh-41458: improvement of method vertex_separation_BAB
40487c8d433 gh-41456: adding two useful methods to lattice polytopes
e795c97ab71 gh-41422: Fix some formatting details
55cead329b8 gh-41404: Remove outdated `needs sage.rings.real_interval_field ` annotations
19cfe8e8ebd gh-41289: Distinguish between base and A_field for Drinfeld modules
d4948b933bf gh-41197: Prevent order mismatch in words function
4f966ca336e gh-40965: Add parameter `forbidden vertices` to methods related to biconnected components
8670503adb2 gh-39947: add parameter immutable to methods in `src/sage/graphs/graph_decompositions/randwidth.pyx|vertex_separation.pyx`
28a7d0422ba (tag: 10.9.beta4) Updated SageMath version to 10.9.beta4

[John H Palmieri]

Have these doctest errors on OS X been reported? env.py and limit_valuation.py:

src/bin/sage -t --long --warn-long 30.0 --random-seed=98448027346439960956059533789739743147 src/sage/env.py
**********************************************************************
File "src/sage/env.py", line 365, in sage.env.cython_aliases
Failed example:
    cython(                                               # optional - sage.misc.cython
    '''
    #distutils: extra_compile_args = OPENMP_CFLAGS
    #distutils: extra_link_args = OPENMP_CFLAGS
    from cython.parallel import prange

    cdef int i
    cdef int n = 30
    cdef int sum = 0

    for i in prange(n, num_threads=4, nogil=True):
        sum += i

    print(sum)
    ''')
Exception raised:
    Traceback (most recent call last):
      File "/Users/palmieri/Sage/TESTING/sage-10.9.beta5/local/var/lib/sage/venv-python3.14/lib/python3.14/site-packages/setuptools/_distutils/spawn.py", line 87, in spawn
        subprocess.check_call(cmd, env=_inject_macos_ver(env))
        ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "/opt/homebrew/Cellar/pyt...@3.14/3.14.2_1/Frameworks/Python.framework/Versions/3.14/lib/python3.14/subprocess.py", line 419, in check_call
        raise CalledProcessError(retcode, cmd)
    subprocess.CalledProcessError: Command '['/usr/bin/gcc', '-fno-strict-overflow', '-Wsign-compare', '-Wunreachable-code', '-fno-common', '-dynamic', '-DNDEBUG', '-g', '-O3', '-Wall', '-I/Users/palmieri/Sage/TESTING/sage-10.9.beta5', '-I/Users/palmieri/Sage/TESTING/sage-10.9.beta5/src', '-I/Users/palmieri/Sage/TESTING/sage-10.9.beta5/build/sage-distro/src', '-I/Users/palmieri/Sage/TESTING/sage-10.9.beta5/local/var/lib/sage/venv-python3.14/include', '-I/opt/homebrew/opt/pyt...@3.14/Frameworks/Python.framework/Versions/3.14/include/python3.14', '-c', '/var/folders/z6/yjw_7s357yx3_mhh81__lplc0000gn/T/sage_zm6m0_lc/spyx_3zdiwgte/_var_folders_z6_yjw_7s357yx3_mhh81__lplc0000gn_T_sage_zm6m0_lc_tmp_hcvmfeqs_pyx/_var_folders_z6_yjw_7s357yx3_mhh81__lplc0000gn_T_sage_zm6m0_lc_tmp_hcvmfeqs_pyx_0.c', '-o', '/var/folders/z6/yjw_7s357yx3_mhh81__lplc0000gn/T/sage_zm6m0_lc/spyx_3zdiwgte/_var_folders_z6_yjw_7s357yx3_mhh81__lplc0000gn_T_sage_zm6m0_lc_tmp_hcvmfeqs_pyx/build/temp.macosx-26.0-arm64-cpython-314/var/folders/z6/yjw_7s357yx3_mhh81__lplc0000gn/T/sage_zm6m0_lc/spyx_3zdiwgte/_var_folders_z6_yjw_7s357yx3_mhh81__lplc0000gn_T_sage_zm6m0_lc_tmp_hcvmfeqs_pyx/_var_folders_z6_yjw_7s357yx3_mhh81__lplc0000gn_T_sage_zm6m0_lc_tmp_hcvmfeqs_pyx_0.o', '-fopenmp', '-w']' returned non-zero exit status 1.

     [snip]

      File "sage/misc/lazy_import.pyx", line 413, in sage.misc.lazy_import.LazyImport.__call__
      File "/Users/palmieri/Sage/TESTING/sage-10.9.beta5/src/sage/misc/cython.py", line 730, in cython_compile
        return cython_import_all(tmpfile, get_globals(), **kwds)
      File "/Users/palmieri/Sage/TESTING/sage-10.9.beta5/src/sage/misc/cython.py", line 616, in cython_import_all
        m = cython_import(filename, **kwds)
      File "/Users/palmieri/Sage/TESTING/sage-10.9.beta5/src/sage/misc/cython.py", line 584, in cython_import
        name, build_dir = cython(filename, **kwds)
                          ~~~~~~^^^^^^^^^^^^^^^^^^
      File "/Users/palmieri/Sage/TESTING/sage-10.9.beta5/src/sage/misc/cython.py", line 463, in cython
        raise RuntimeError(msg.strip())
    RuntimeError: command '/usr/bin/gcc' failed with exit code 1
    clang: error: unsupported option '-fopenmp'
**********************************************************************

src/bin/sage -t --long --warn-long 30.0 --random-seed=98448027346439960956059533789739743147 src/sage/rings/valuation/limit_valuation.py
**********************************************************************
File "src/sage/rings/valuation/limit_valuation.py", line 680, in sage.rings.valuation.limit_valuation.MacLaneLimitValuation._ge_
Failed example:
    valuations.LimitValuation(V[0], F) >= valuations.LimitValuation(V[1], F)
Exception raised:
    Traceback (most recent call last):
      File "/Users/palmieri/Sage/TESTING/sage-10.9.beta5/src/sage/doctest/forker.py", line 734, in _run
        self.compile_and_execute(example, compiler, test.globs)
        ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "/Users/palmieri/Sage/TESTING/sage-10.9.beta5/src/sage/doctest/forker.py", line 1158, in compile_and_execute
        exec(compiled, globs)
        ~~~~^^^^^^^^^^^^^^^^^
      File "<doctest sage.rings.valuation.limit_valuation.MacLaneLimitValuation._ge_[4]>", line 1, in <module>
        valuations.LimitValuation(V[Integer(0)], F) >= valuations.LimitValuation(V[Integer(1)], F)
      File "sage/structure/element.pyx", line 1101, in sage.structure.element.Element.__richcmp__
      File "sage/categories/morphism.pyx", line 351, in sage.categories.morphism.Morphism._richcmp_
      File "/Users/palmieri/Sage/TESTING/sage-10.9.beta5/src/sage/rings/valuation/valuation.py", line 187, in _richcmp_
        return self._ge_(other)
               ~~~~~~~~~^^^^^^^
      File "/Users/palmieri/Sage/TESTING/sage-10.9.beta5/src/sage/rings/valuation/limit_valuation.py", line 701, in _ge_
        assert self._G.gcd(other._G).is_one()
               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
    AssertionError
**********************************************************************

[Dima Pasechnik]

Hi John,
our OpenMP settings need to be properly fixed. No setting of flags
should be done, it's all handled properly by Meson,
but it needs to be set up correctly.
See https://github.com/sagemath/sage/issues/40898#issuecomment-3879264134
and
https://github.com/sagemath/sage/issues/40898#issuecomment-3879308326

Dima

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[Antonio Rojas]

El martes, 10 de febrero de 2026 a las 18:04:28 UTC+1, John H Palmieri escribió:

Have these doctest errors on OS X been reported? env.py and limit_valuation.py:

The second one is a Python 3.14 regression, there is a patch around but never made it to a PR, see last comments in https://github.com/sagemath/sage/pull/41086

 

[John H Palmieri]

Why was the patch removed from that PR? Any reason not to use it?