Quill v0.3.0 — Session Forking, FTS5 Search, Marketplace Install

What's New in v0.3.0

🔀 Session Forking

Deep fork with checkpoint copy — branched threads carry full conversation history. Powered by the new runtime/fork.ts service that copies all checkpoints and pending writes.

🔍 FTS5 Session Search

BM25-ranked full-text search across all thread messages with snippet extraction and prefix matching. Uses SQLite FTS5 when available, falls back to in-memory scan.

🛒 Marketplace Install

Install skills directly from GitHub repos or arbitrary URLs. Supports owner/repo shorthand, branch/tag selection, and auto-detection of SKILL.md files.

📊 Competitive Position

Quill now matches or exceeds all 10 leading harness frameworks on 18 of 22 capability dimensions (up from 11 previously).

Framework Analysis Updated

Updated harness-framework-comparison.md with the latest competitive analysis (2026-09-11) covering OpenWork, DeepSeek Harness, OpenClaw, Hermes Agent, Kimi Code, Codex, DeerFlow 2.0, CrewAI, AutoGen, and awesome-harness-engineering.

Verification

• ✅ Backend type-check: clean (0 errors)
• ✅ Backend tests: 408 passed (3 pre-existing failures unrelated to this release)
• ✅ Pushed to main: commit e0b732b

Assets

This release includes the full source. Desktop binaries require Rust/Tauri toolchain to build locally:

cargo install tauri-cli --version "^2.0.0-beta"
cd desktop && cargo tauri build

Full Changelog: v0.2.0...v0.3.0