[Do-Not-Merge] Release v1.12+RAI branch#268

Draft

NHDaly wants to merge 16 commits intorelease-1.12from

Commits on Dec 5, 2025

RAI: Add 'RAI' as the build part of the semantic version
NHDaly
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Add GitHub template and workflows needed on the default branch (#135)

Drvi
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NHDaly
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RAI: Track blocks and bytes allocated for GC pools

d-netto
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NHDaly
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RAI: Change task ordering behavior to prioritize older tasks

kpamnany
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NHDaly
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RAI: Disable huge pages for all mmap'ed memory

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NHDaly
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RAI: Never use MADV_FREE

kuszmaul
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NHDaly
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RAI: Prepend "thread (%d) " to output from `jl_print_task_backtraces()`

kpamnany
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NHDaly
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RAI: Add heartbeat capability

kpamnany
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NHDaly
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RAI: --safe-crash-log-file flag

d-netto
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NHDaly
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RAI: Write heartbeat thread output to safe crash log

kpamnany
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NHDaly
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RAI: fix string interpolation on OPENBLAS_BUILD_OPTS

d-netto
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NHDaly
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RAI: Prepend signal number and thread ID on backtraces

authored and
NHDaly
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RAI: do not prepend thread ID to backtraces from signal handler context

kpamnany
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NHDaly
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Add `Base.isprecompilable` (#58805)

kpamnany
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NHDaly
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RAI: Don't use macros inside `logmsg_code` (#250)

Drvi
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NHDaly
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Revert "RAI: Don't use macros inside `logmsg_code` (#250)"

nickrobinson251
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NHDaly
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