runa/CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

[Unreleased]

Added

• Portable structured actor values: null, booleans, signed 64-bit integers, strings, lists, records, and distinct NanoID actor references.

• JSON state/message literals in the REPL, including named $actor references, $record escaping, and actor-reference completion inside nested values.

• Value conversion limits and tests for nested-state isolation, copied sends, cyclic/unsupported Rune output, and all-or-nothing structured transitions.

• Reusable loopback TCP protocol client with bounded messages, correlation checks, explicit connection failures, and no automatic request retries.

• Multi-client and reconnect tests proving that actors remain in the server-owned image after development clients disconnect.

• Typed, instruction-sliced Rune invocations with preserved async execution, wake-driven resumption, and cancellation tests.

• Minimal single-worker actor runtime with bounded FIFO mailboxes, private integer state, structured messages, immutable implementation IDs, explicit message effects, inspection, lifecycle events, stop, and restart.

• Runnable two-actor counter demonstration and tests for runaway fairness, pending-message isolation, failures, backpressure, and all-or-nothing effects.

• Interactive local CLI for spawning actors, sending messages, advancing ticks, inspecting actors/events, and stopping/restarting actors.

• Versioned BLAKE3 source and implementation identities, original-source retention, a Rune compile-input fingerprint, and an in-memory compiled artifact cache.

• In-memory named behavior revisions with optimistic publish checks, immutable history, rollback revisions, and runtime installation at idle handler boundaries.

• CLI commands for named behavior publishing, history, rollback, and installation, plus mise run run to launch the local executable.

• Cooperative actor pause/resume between scheduler ticks, preserving active invocations and emitting lifecycle events.

• Explicit safe-point state migration during implementation installation, with atomic failure behavior and migration events.

• Explicit invocation cancellation that requeues the reserved message for retry, exposed in the CLI and documented with native side-effect caveats.

• Active actor execution telemetry in snapshots: completed VM steps, instruction pointer, and call-frame depth.

• Trusted in-process runa-image-api service boundary for code and actor operations, now used by the local CLI.

• Versioned, transport-neutral runa-protocol request, response, and event DTOs with serde support and request validation.

• Transport-neutral runa-server dispatcher routing protocol commands through the image API with typed replies and error codes.

• Local JSON-lines stdio transport for the protocol dispatcher, with a 1 MiB request limit and explicit malformed-input failures.

• Reusable local child-process client for issuing correlated protocol requests and shutting down the server process cleanly.

• Loopback-only TCP JSON-lines endpoint for local development clients, sharing the same live image as stdio and limiting concurrent clients.

• Execution-model decision and Phase 1 runtime documentation.

• Lifecycle tests proving failed-message retry from committed state and stop/restart preservation of reserved-first FIFO order.

• NanoID-based public actor references, explicit behavior-and-state spawning, named REPL actor bindings, tab completion, and command history navigation.

• NanoID-based public actor references, explicit behavior-and-state spawning, named REPL actor bindings, tab completion, and command history navigation.

• Runnable Phase 0 experiment pinned to Rune 0.14.2, covering script execution, native calls, async suspension, instruction budgets, frame inspection, stepping, and compiled-code sharing across isolated VMs and threads.

• Tests for feasibility results, invalid source, runtime errors, independent stacks, and cancellation by dropping suspended execution.

• Rune feasibility report with measured timings, shallow object sizes, limitations, and a proposed Phase 1 execution model.

• Initial Rust workspace with the runa binary and a runa-rune library scaffold for Phase 0. Rune integration is not implemented yet.

• Project README and agent guidelines.

• Base directories for architectural decisions, default image scripts, development automation, examples, system tests, and the VS Code extension.

• Mise tasks for formatting, Clippy linting, workspace tests, and sequential pre-commit validation.

• Tombi, rustfmt, and Clippy configurations.

Changed

• Renamed the local REPL mise task from run to start.
• Protocol v3 and Rune's two-argument handle(state, message) replace the temporary integer-only state and kind/value/target_ref message envelope. Returned sends now contain (actor_reference, message) pairs; migrations, snapshots, and events preserve structured values.
• The REPL now connects to the localhost server rather than embedding its own image. Start the server first; --connect selects a loopback endpoint.
• TCP server startup publishes the bundled counter behavior once; connecting or disconnecting clients does not reset behavior revisions or actor state.
• Interactive CLI commands now use the versioned protocol dispatcher instead of calling the image API directly.
• Protocol version 2 replaces numeric actor IDs with NanoID actor references and adds optional target references for message effects.
• Protocol version 2 replaces numeric actor IDs with NanoID actor references and adds optional target references for message effects.
• Actor implementation IDs now identify compiled source/configuration content rather than using sequential process-local numbers.
• Expanded the architecture specification with crate ownership and dependency boundaries, and moved it to docs/architecture.md.
• Required agents to pass mise run pre-commit before every commit and document user-visible changes in this changelog.