v0.18.3

What's Changed

• feat: make task and turn tracing spans configurable by @seratch in #3834
• feat(realtime): track response usage in session context by @seratch in #3812
• fix(memory): serialize OpenAI conversation session initialization by @russeell in #3821
• fix(models): raise UserError for conflicting provider args instead of assert by @Dhruva-Das in #3809
• fix(handoffs): preserve user messages containing history wrappers by @russeell in #3815
• fix(computer): isolate provider instances across concurrent runs by @russeell in #3843
• fix(sandbox): avoid redundant E2B workspace root creation by @seratch in #3845
• fix: preserve streamed session input across model retries by @seratch in #3857
• fix: prevent stale prepared-item identity reuse by @seratch in #3858
• fix: AdvancedSQLiteSession clear_session and pop_item metadata leaks by @okaditya84 in #3755
• fix: parse Google docstrings missing the blank line before a section by @sohumt123 in #3832
• fix: bound $ref expansion in strict JSON schema conversion by @ioleksiuk in #3838
• fix: redact non-tool trace error details by @seratch in #3848

Documentation & Other Changes

• docs: updates for hosted multi-agent support by @seratch in #3789
• docs: make UserContext example runnable in Agents documentation by @MuhammadHamidRaza in #3851
• chore: enable flake8-async for runtime source by @seratch in #3813
• Release 0.18.3 by @github-actions[bot] in #3859

New Contributors

• @Dhruva-Das made their first contribution in #3809
• @russeell made their first contribution in #3815
• @okaditya84 made their first contribution in #3755
• @sohumt123 made their first contribution in #3832

Full Changelog: v0.18.2...v0.18.3