chore: release v0.42.0 - #2221
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`#[non_exhaustive]` forbids struct-literal construction from other crates, so it can only be added inside a breaking window. This one is open (#2221, v0.42.0) and `Model` just took exactly the break the attribute prevents: #2324 added `max_output_tokens` and broke a downstream struct literal, while the four rig-agent types in the same PR gained fields harmlessly because they carry it. `Model` and `ModelList` are values `list_models()` hands out; callers read them rather than build them. Public fields stay readable and writable, and `Model::from_id`/`Model::new`/`ModelList::new` already cover construction, so the migration is a constructor call plus field assignment. The only construction site the attribute breaks in-tree is this module's own rustdoc, which taught the full-literal form under "Create a model with all fields" — the form anyone following the docs would have written. Doctests compile as external crates, so that example is rewritten to the assignment form and `cargo test --doc` now guards it. The two literals in the in-crate test module are unaffected. Refs #2325
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#2221's `cargo-semver-checks` output is a ready-made census of every externally-constructible `rig-core` struct that gained a field this cycle — i.e. every type that already demonstrated it grows fields while lacking `#[non_exhaustive]`. Sixteen of those rows are values the library hands out and callers only read, so they take the attribute too: - `completion::message::ToolCall` (gained `provider`) - `streaming::RawStreamingToolCall` (gained `tool_id`) - anthropic: `CompletionResponse`, `Usage`, `ToolDefinition`, `streaming::{StreamingCompletionResponse, PartialUsage}` - openai: `completion::streaming::StreamingCompletionResponse`, `responses_api::CompletionResponse`, `responses_api::streaming::StreamingCompletionResponse` - gemini: `streaming::StreamingCompletionResponse` - ollama: `ToolCall`, `StreamingCompletionResponse` - cohere: `completion::Usage`, `embeddings::BilledUnits`, `streaming::StreamingCompletionResponse` Two census rows are deliberately skipped, because for them the struct literal *is* the construction contract and no ergonomic alternative exists: `message::ToolResult` has no constructor at all and the public `StreamedUserContent::tool_result` takes one by value, so attributing it would make it unconstructible outside rig-core (14 external literal sites today); `anthropic::completion::AnthropicRequestParams` is request-side input with no `Default`, no `new` and no builder. Both want a constructor first, which is its own change. Only two construction sites break in-tree, both root cassette tests building a cross-provider `message::ToolCall`; `ToolCall::new(id, function)` is exactly equivalent to the literal they used. Every other attributed type already had zero struct-literal sites outside `crates/rig-core/src`. Refs #2325
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🤖 New release
rig-derive: 0.41.0 -> 0.42.0rig-core: 0.41.0 -> 0.42.0 (⚠ API breaking changes)rig-agent: 0.41.0 -> 0.42.0 (⚠ API breaking changes)rig-bedrock: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-candle: 0.41.0 -> 0.42.0 (⚠ API breaking changes)rig-fastembed: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-gemini-grpc: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-helixdb: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-lancedb: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-memory: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-milvus: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-mongodb: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-neo4j: 0.41.0 -> 0.42.0 (⚠ API breaking changes)rig-postgres: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-qdrant: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-s3vectors: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-scylladb: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-sqlite: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-surrealdb: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-vectorize: 0.41.0 -> 0.42.0 (✓ API compatible changes)rig-vertexai: 0.41.0 -> 0.42.0 (⚠ API breaking changes)rig: 0.41.0 -> 0.42.0 (✓ API compatible changes)⚠
rig-corebreaking changes⚠
rig-agentbreaking changes