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[changelog] Add changelog for v1.0.2 #1714

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56 changes: 56 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -5,6 +5,62 @@ All notable changes to the Copilot SDK are documented in this file.
This changelog is automatically generated by an AI agent when stable releases are published.
See [GitHub Releases](https://github.com/github/copilot-sdk/releases) for the full list.

## [v1.0.2](https://github.com/github/copilot-sdk/releases/tag/v1.0.2) (2026-06-18)

### Feature: opt-in memory for sessions

Sessions can now be configured with persistent memory, allowing the agent to recall information across turns. Set `memory: { enabled: true }` when creating or resuming a session; when omitted the runtime default applies. ([#1617](https://github.com/github/copilot-sdk/pull/1617))

```ts
const session = await client.createSession({
memory: { enabled: true },
});
```

```cs
var session = await client.CreateSessionAsync(new SessionConfig
{
Memory = new MemoryConfiguration { Enabled = true }
});
```

### Feature: `defer` parameter for tool definitions

Tools now support a `defer` option controlling whether they are pre-loaded eagerly or surfaced lazily through tool search. Use `"auto"` (the default) to allow lazy loading, or `"never"` to force pre-loading. ([#1632](https://github.com/github/copilot-sdk/pull/1632))

```ts
defineTool("lookup_issue", {
description: "Fetch issue details",
parameters: z.object({ id: z.string() }),
defer: "auto",
handler: async ({ id }) => { /* ... */ },
});
```

```cs
var tool = CopilotTool.DefineTool(
async ([Description("Issue ID")] string id) => { /* ... */ },
toolOptions: new CopilotToolOptions { Defer = CopilotToolDefer.Auto });
```

### Other changes

- feature: **[All SDKs]** add `otlpProtocol` telemetry option (`"http/json"` or `"http/protobuf"`) for configuring OTLP export transport ([#1648](https://github.com/github/copilot-sdk/pull/1648))
- feature: **[All SDKs]** surface `ModelBilling.tokenPrices` on public SDK types, exposing per-tier input/output/cache pricing and context window limits ([#1633](https://github.com/github/copilot-sdk/pull/1633))
- improvement: **[All SDKs]** call `runtime.shutdown` during normal client stop for deterministic OTEL telemetry flush before process cleanup ([#1667](https://github.com/github/copilot-sdk/pull/1667))
- improvement: **[Go]** thread `context.Context` through the JSON-RPC request path for proper cancellation support ([#1643](https://github.com/github/copilot-sdk/pull/1643))
- improvement: **[Java]** add `getOpenCanvases()` to `CopilotSession` to track currently open canvas instances, matching the other SDKs ([#1606](https://github.com/github/copilot-sdk/pull/1606))
- improvement: **[Java]** rename `SystemPromptSections` to `SystemMessageSections` for cross-SDK consistency; old class deprecated with `forRemoval=true` ([#1683](https://github.com/github/copilot-sdk/pull/1683))
- bugfix: **[Python]** round sub-millisecond durations in `to_timedelta_int` to avoid serialization errors ([#1668](https://github.com/github/copilot-sdk/pull/1668))
- bugfix: **[Rust]** skip CLI binary download in `build.rs` when `DOCS_RS` env var is set ([#1660](https://github.com/github/copilot-sdk/pull/1660))

### New contributors

- @andyfeller made their first contribution in [#1631](https://github.com/github/copilot-sdk/pull/1631)
- @almaleksia made their first contribution in [#1632](https://github.com/github/copilot-sdk/pull/1632)
- @idryzhov made their first contribution in [#1668](https://github.com/github/copilot-sdk/pull/1668)
- @scottaddie made their first contribution in [#1636](https://github.com/github/copilot-sdk/pull/1636)

## [v0.2.2](https://github.com/github/copilot-sdk/releases/tag/v0.2.2) (2026-04-10)

### Feature: `enableConfigDiscovery` for automatic MCP and skill config loading
Expand Down