10.6.beta2

What's Changed

• Adopt the “time window-based” policy for support of Python versions from Spec-0 by @tobiasdiez in #35403
• Rename PolynomialRing_general to PolynomialRing_generic by @grhkm21 in #38207
• add a pairing heap data structure by @dcoudert in #39046
• Allow more rings to be used with libsingular & rework signal detection system by @user202729 in #39075
• cython-lint cleanup in matroids by @fchapoton in #39108
• Fix a crash when trying to build very large Reed-Muller codes by @jlavauzelle in #39110
• build/pkgs/ccache: Update to 4.10.2 by @gmou3 in #39119
• build/pkgs/cmake: Update to 3.31.2 by @gmou3 in #39120
• some care for pep8 E262 (comments) by @fchapoton in #39125
• More information on build from source using meson by @user202729 in #39129
• avoid some imports of rings.Ring by @fchapoton in #39131
• fixing pep8 E203 in pyx files by @fchapoton in #39132
• Even less integral domain by @fchapoton in #39133
• a few details in master reference file by @fchapoton in #39134
• Fix ginac's ratlog method so log(int(0),2) does not hang by @DaveWitteMorris in #39135
• Meson: install __init__ files by @tobiasdiez in #39139
• Fix meson github check by @tobiasdiez in #39140
• fix linter warnings in sage_setup and sage_docbuild by @fchapoton in #39143
• Don't use count as a positional argument in re.sub by @antonio-rojas in #39145
• Remove executable flags from many Python files by @user202729 in #39149
• Fix a bug in Khuri-Makdisi small model of Jacobian by @kwankyu in #39150
• Return True instead of None to avoid cachefunc being useless by @user202729 in #39174

Full Changelog: 10.6.beta1...10.6.beta2