• Add experimental exception_callback configuration by @alexmojaki in #1355
• Support Instrumenting Async SqlAlchemy Engines by @dhruv-ahuja in #1425
• Always collect operation.cost metric in spans by @alexmojaki in #1435
• Update pyproject.toml to be PEP639 compliant by @Kludex in #1429
• Improve canonicalize_exception_traceback for RecursionError by @alexmojaki in #1455