v1.0.15-preview.0

Feature: typed structured outputs for all six SDKs

Provide a JSON Schema, or use an idiomatic typed helper, to have the model return typed, validated output instead of free-form text. (#2590)

const answerSchema = z.object({ value: z.number().int() });
const answer = await session.sendAndWait("What is 19 + 23?", answerSchema);

class Answer(BaseModel):
    value: int

answer = await session.send_and_wait_typed("What is 19 + 23?", Answer)

var answer = await session.SendAndWaitAsync("What is 19 + 23?");
public sealed record Answer(int Value);

Go, Java, and Rust get the same capability via copilot.SendAndWait[Answer], session.sendAndWait(prompt, Answer.class), and session.send_and_wait_typed(prompt) respectively.

Feature: structured JSON-RPC error data in Rust

copilot::Error now preserves the optional data payload from JSON-RPC errors so callers can inspect machine-readable error details instead of just the message. (#2664)

if let Some(data) = error.rpc_data() {
    println!("{data}");
}

Other changes

• feature: [Java] add native runtime support for darwin-x64 (#2701)
• feature: [Java] add native runtime support for linuxmusl-x64 (Alpine) (#2715)
• improvement: [Node/Python/Go/.NET/Java] coalesce intercepted HTTP response chunks with bounded read-ahead for better tool-call streaming throughput (#2734)
• improvement: [.NET] reduce allocations when processing inbound session events (#2733)
• improvement: [Node] pin production dependencies to exact versions and require a 7-day publish-age check across the resolved dependency graph (#2700)

New contributors

• @roblourens made their first contribution in #2700

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