●API — Event-driven webhooks deliver Batch API and long-running completions, removing the need to poll●SEARCH — File Search now supports gemini-embedding-2, embedding and searching images natively●SECURITY — Since June 19, requests from unrestricted API keys are blocked — review your key limits●MODEL — Gemini 3.5 Flash is generally available and now powers gemini-flash-latest●AGENT — Managed Agents hit public preview in the Gemini API, running in isolated sandboxes●DEPRECATED — Two image-preview models shut down June 25 — check any preview-dependent flows●API — Event-driven webhooks deliver Batch API and long-running completions, removing the need to poll●SEARCH — File Search now supports gemini-embedding-2, embedding and searching images natively●SECURITY — Since June 19, requests from unrestricted API keys are blocked — review your key limits●MODEL — Gemini 3.5 Flash is generally available and now powers gemini-flash-latest●AGENT — Managed Agents hit public preview in the Gemini API, running in isolated sandboxes●DEPRECATED — Two image-preview models shut down June 25 — check any preview-dependent flows

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Gemini API¹ Qdrant¹ RAG¹ RRF¹ Recall¹ Production¹ Instrumentation¹

◈ Gemini API/2026-06-28Advanced

When Gemini × Qdrant Hybrid Search Was Quietly Losing Recall — Field Notes on Instrumenting RRF Weights and Sparse-Vector Drift

Run Gemini embeddings with Qdrant hybrid search in production and your dashboards stay green while recall quietly slips. These field notes show how to catch it with measurement — RRF weights, sparse-vector drift, missing payload indexes — and protect it with a quality budget.