v0.4.0

0.4.0 (2026-07-06)

Features

• first-class MCP tool-call instrumentation (#24) (623004f)

v0.3.0

0.3.0 (2026-07-05)

⚠ BREAKING CHANGES

• Generation.set_model() is now set_response_model(); Generation.set_finish_reason() is now set_finish_reasons().

Features

• bundled auto-instrumentation via OpenInference (GLA2-26) (b77cb4c)
• bundled auto-instrumentation via OpenInference (GLA2-26) (6945ab1)
• pre-1.0 API cleanups from the SDK review (a294b94)

Bug Fixes

• crash-proofing and semconv corrections (dd06b18)
• crash-proofing, semconv corrections, and pre-1.0 API cleanups (ae3ca7d)
• define init() lifecycle semantics (99b644f)
• define init() lifecycle semantics (4374298)
• emit gen_ai.*.messages in the spec role/parts shape (GLA2-84) (06ba2a2)
• emit gen_ai.*.messages in the spec role/parts shape (GLA2-84) (a7225d0)
• harden export-stage masking (GLA2-83) (db20501)
• harden export-stage masking (GLA2-83) (9781380)

v0.2.0

0.2.0 (2026-07-03)

⚠ BREAKING CHANGES

• start_generation/start_as_current_generation param 'system' is now 'provider', and the emitted attribute is gen_ai.provider.name (was gen_ai.system). GLA2-73.

Features

• add PII masking and content opt-out at export (GLA2-23) (2c3b4b0)
• emit gen_ai.provider.name; rename generation param system -> provider (f30ea71)
• harden export pipeline reliability (GLA2-25) (e1f2f16)
• harden export pipeline reliability (GLA2-25) (0934973)
• head-based sampling (GLA2-24) (5b89796)
• head-based sampling via sample_rate (67d4fd1)
• PII masking and content opt-out at export (GLA2-23) (dad754e)

v0.1.0

0.1.0 (2026-07-02)

Features

• @observe decorator for tracing user functions (GLA2-19) (ee7e095)
• add @observe decorator for tracing user functions (4e0ba4d)
• add span-kind model (semconv) and kind param to @observe (e1305d8)
• add start_generation LLM capture helper (gen_ai-native) (415b168)
• add start_span manual span API + Observation handle (70835f8)
• align span API naming + add manual create/update/end lifecycle (17e8f31)
• align span API naming + manual create/update/end (GLA2-70) (66cb01c)
• gen_ai-native LLM generation helpers (GLA2-22) (19efa5c)
• manual span API (start_span + Observation) (GLA2-20) (306817e)
• span-kind model + attribute mapping (GLA2-21) (c145c92)

Documentation

• update README title to GlassFlow Python SDK (33cdacb)