What's Changed

• Remove jvmti wallclock sampler for none J9 VMs by @zhengyu123 in #419
• Intercept sigaction to prevent libraries from overwriting signal handlers by @jbachorik in #420
• [PROF-12646] Update OTel process context support with latest version of reference library by @ivoanjo in #414
• Refactor VMStructs by @zhengyu123 in #368
• Port async-profiler#1701: optimize nmethod type checks by @jbachorik in #423
• Do not perform deep validity check of jmethodid on JDK 26+ by @jbachorik in #428
• Detect per-library aarch64 frame layout from DWARF by @jbachorik in #426
• fix(sigaction): prevent infinite loop in signal handler chaining by @jbachorik in #437
• Refactor: JVM implementation separation and JVMThread abstraction by @zhengyu123 in #435
• Mitigate VMMethod::validatedId() crash by @zhengyu123 in #453
• Add OTEP #4947 OTEL-compatible context storage by @jbachorik in #347
• Refactor stackwalker by @zhengyu123 in #451
• Parse __eh_frame DWARF info on macOS for per-PC frame descriptions by @jbachorik in #430
• Centralize Java thread detection and type-safe thread state handling by @zhengyu123 in #462
• Improve JVM stack frame unwinding isolation by @zhengyu123 in #472
• Fix signal-handler crash in Libraries::findLibraryByAddress by @jbachorik in #459
• fix: prevent memory leak in otel schema_version decode branch by @jbachorik in #458
• Fix J9 ASGCT version guard to require OpenJ9 0.51 by @jbachorik in #468
• Fix JVM crash when Thread::current() returns nullptr (PROF-13072) by @jbachorik in #461

New Contributors

• @juliendoutre made their first contribution in #417
• @moezein0 made their first contribution in #439
• @dd-octo-sts[bot] made their first contribution in #485

Full Changelog: v_1.39.0...v_1.41.0