# 🦒 Boring-Gemini V14.8.0 Release Notes
"The World Class Edition"
**Date**: 2026-01-17
## 🌟 Highlights
### Atomic Durability (SQLite WAL)
We have migrated the event ledger from a simple JSONL file to **SQLite with Write-Ahead Logging (WAL)**. This ensures that even in the event of a sudden power loss or process crash, the integrity of the project history is preserved.
### EventWriter Resilience
The background event writer now possesses **Self-Healing** capabilities. If the writer thread crashes due to a bug or memory issue, the system detects it and transparently restarts a new thread, ensuring no events are lost.
### Performance Turbocharge
Startup time has been slashed to **under 200ms**. We achieved this by lazily loading heavy libraries like Pydantic, ChromaDB, and SentenceTransformers only when they are actually needed.
### Dead Letter Queue (DLQ)
Your data matters. If the database is locked or inaccessible even after multiple retries, events are securely written to a `dead_letters.jsonl` file, allowing for later recovery.
## 🛠️ Complete Changelog
### New Features
- **[Core]** SQLite Event Store integration.
- **[Core]** Dead Letter Queue (DLQ) mechanism.
- **[Intelligence]** ProcessPoolExecutor for non-blocking embeddings.
- **[Intelligence]** `Singleflight` cache protection.
- **[CLI]** `boring doctor` now optimizes DB (WAL checkpoints).
### Fixes
- Fixed race condition in `AsyncEventStore` sequence generation.
- Fixed resource leak in ThreadPool.
- Fixed silent failure when DB is locked for >5s.
- Fixed `UnitOfWork` partial commit states.
### Statistics
- **Concurrency**: Supported 20+ parallel users.
- **Throughput**: ~40 events/sec.
- **Resilience**: 100% data survival in Chaos Tests (Lock, Crash, Delete).
