Google GenAI SDK Python v2.30.0：新增交互续传与用量字段，修复流式中断问题

v2.30.0

推荐理由

本次更新引入了关键的交互续传机制与自动恢复功能，对构建高可用 AI Agent 至关重要；同时强化了 mTLS 安全配置，建议依赖该 SDK 处理长任务或敏感数据的开发者尽快升级。

2.30.0 (2026-10-13)

Accumulate streaming continuation usage metadata and expose initial_prompt_token_count (b27f3cd)
Add continuation_token to the Interactions interaction.status_update event. (02db4c5)
Add a CONTINUATION_REQUIRED Interaction status (bf9d6d7)
Add billable token counts fields (6a6501c)
Add startOffset/endOffset to Transcription and interimTranscriptTimestampEnabled to RealtimeInputConfig (c644a94)
Add usage in InteractionStatusUpdate events (56c3a1a)
Allow automatic resumption of continuation token for in generate content and generate content stream. Default behavior for this feature is disabled (83e43ea)
cli: Update Speakeasy generator to v2.948.0, bump CLI to v0.4.2, and apply CLI overlay fixes (cdcd3dd)
Enable automatic continuation token resumption for chats module. (9ebf714)

累积流式续传使用元数据，并暴露 initial_prompt_token_count（b27f3cd）
在 Interactions interaction.status_update 事件中添加 continuation_token。（02db4c5）
添加 CONTINUATION_REQUIRED Interaction 状态（bf9d6d7）
添加可计费 token 计数字段（6a6501c）
为 Transcription 添加 startOffset/endOffset，并为 RealtimeInputConfig 添加 interimTranscriptTimestampEnabled（c644a94）
在 InteractionStatusUpdate 事件中添加使用情况信息（56c3a1a）
允许在 generate content 和 generate content stream 中自动恢复续传 token。此功能的默认行为已禁用（83e43ea）
cli：将 Speakeasy 生成器更新至 v2.948.0，将 CLI 升级至 v0.4.2，并应用 CLI 覆盖修复（cdcd3dd）
启用 chats 模块的自动续传 token 恢复功能。（9ebf714）

Clear intermediate CONTINUATION finish_reason in streaming continuation (8a641d8)
Do not record incomplete continuation stream turns in curated chat history (b382e01)
gemini-api-cli: Remove unsupported 2.5 and 1.6 models from Interactions model options and CLI examples (fe5fb10)
genai: Deduplicate Flash and Omni descriptions in ModelOption (33efaad)
interactions: Restore super().model_construct in Interaction model validator (ccd5dd3)
python: Discard stale checkpoint token on non-resumable finish reason (f44e8ee)
Raise default HTTP timeouts so long-running requests aren't killed client-side (b006b4b)
Resume streaming generation from the latest checkpoint continuation token on mid-stream errors or cutoffs (90bb32b)
Update EnvironmentConfig.env schema to map keys to EnvVar or string. (3108d8c)
Use the mTLS endpoint on the httpx and websocket transports (97d5821)

看懂新闻只是起点——沿量化金融路径，把它变成能交付的工程能力