v2.3.1

Added

• Add #[must_use] to cli_client! macro-generated builder methods
• Add #[must_use] to cli_client! macro-generated builder methods
• Add nested Job Object containment integration test
• Add typos spell-checker to CI and justfile
• Add "Running many at once" batch fan-out guide
• Add fuzz targets for cassette parsing and replay
• Add opt-in liveness health checks to Supervisor
• Add spawn-time stdout/stderr file redirect to Command
• Add opt-in Windows graceful shutdown via console CTRL_BREAK
• Add opt-in Windows graceful shutdown via console CTRL_BREAK
• Add spawn-time stdout/stderr file redirect to Command
• Add opt-in liveness health checks to Supervisor
• Add fuzz targets for cassette parsing and replay
• Add "Running many at once" batch fan-out guide
• Add typos spell-checker to CI and justfile
• Add nested Job Object containment integration test
• Add loom model-checking tier for pid_gate/deadline/SkipDropKill
• Add proptest suite for OutputBufferPolicy invariants
• Add proptest suite for OutputBufferPolicy invariants
• Add loom model-checking tier for pid_gate/deadline/SkipDropKill
• Add ProcessGroup::members_info() enriched member snapshot
• Add ProcessGroup::members_info() enriched member snapshot

Changed

• Start integration branch for batch B-20260719T111659Z
• Give gh run rerun explicit repo context in mutants-retry
• Clamp graceful::run poll sleep to remaining deadline
• Drain stderr in poll_until independently of stdout streamability
• Narrow one-shot stdin retry gate to pre-child launch failures
• Start integration branch for batch B-20260719T213134Z
• Narrow one-shot stdin retry gate to pre-child launch failures
• Drain stderr in poll_until independently of stdout streamability
• Clamp graceful::run poll sleep to remaining deadline
• Start integration branch for batch B-20260719T230600Z
• Document composite pipeline name in ProcessResult::program rustdoc
• Start integration branch for batch B-20260720T081656Z
• Document composite pipeline name in ProcessResult::program rustdoc
• Raise honest EPERM for live pgroup members on SIGKILL teardown
• Extract shared probe() 0/1 exit-code helper on ProcessResult
• Start integration branch for batch B-20260720T192446Z
• Extract shared probe() 0/1 exit-code helper on ProcessResult
• Raise honest EPERM for live pgroup members on SIGKILL teardown
• Start integration branch for batch B-20260720T211640Z

Fixed

• Fix mutants-retry gh run rerun missing repo context
• Fix broken rustdoc intra-doc links under --no-default-features
• Fix rustfmt formatting in sys::pgroup live/zombie state check

Removed

• Remove unreachable stdout/stderr sink guards, document invariant with debug_assert
• Remove unreachable stdout/stderr sink guards, document invariant with debug_assert