2.42.0

Added

• Tracing: Add sampling probability compatibility with OTel-instrumented services (#6111)
• Dynamic Instrumentation: Add per-process runtime id for snapshots to distinguish process restarts within a container (#6232)
• Dynamic Instrumentation: Honor organization- and environment-level remote enablement for Ruby services (#6234)
• Open Feature: OpenFeature provider sends the serial ID of the assigned split on exposure events (#6220)

Changed

• Profiling: Drop usage of MJIT headers for Ruby 2.6 to 3.1 (#6135)
• Profiling: Re-enable heap live size profiling for Ruby 4+ (#6176)
• Dynamic Instrumentation: Enforce process-wide rate limit across all probes (#6043)

Fixed

• Core: Ignore SignalException from crashtracker as unhandled exception errors (#6219)
• Tracing: Fix missing peer tags for database queries traced through ActiveRecord (#6213)
• Profiling: Fix bug in sample_after_gc leading to profiler stopping (#6242)
• Profiling: Improve stability of heap profiling by using ObjectSpace::WeakMap instead of _id2ref (#6176)
• Profiling: VM-internal objects are no longer sampled for heap profiling (#6176)