v3.2.0: Industrial-Grade Quality Infrastructure

v3.2.0 is the quality release. 702 tests, 163 test suites, zero tolerance for silent failures.

What Changed

Quality Gate (5 checks)

Every translation now passes through five deterministic validation checks before it's written to disk:

1. Empty/blank — Model returned nothing
2. Source echo — Model returned the English input
3. Hallucination loop — Repeated trigram patterns
4. Length inflation — Output 4×+ longer than source
5. Script compliance — Wrong script for the locale

No translation is written without passing all five checks. Failed translations are logged and retried.

Retry Cascade

When a batch fails, rosetta retries with progressively smaller batches:

Full batch (30 keys) → parse error
  └→ Half batch (15 keys) → 2 failures
      └→ Individual keys (1 each) → isolates the problem keys

Security Hardening

• Prototype pollution guard — __proto__, constructor keys rejected at parse time
• Path traversal guard — Crafted locale codes can't write outside configured directories
• Response validation — Only keys that were sent are accepted back

Test Infrastructure

Suite	Tests	What It Covers
Core (8 suites)	280+	Config, sync, CLI, watch, audit, pairs, format, init
Red team	89	Adversarial inputs, encoding attacks
Contract	120	API integration contracts
Performance	36	Batch optimization, throughput regression
Coverage	702 total	Full pipeline

Prompt Caching

System messages are now split from user messages, enabling prompt cache hits on providers like Anthropic and Google. This significantly reduces token costs for multi-batch syncs.

See the Quality Gate docs and Security docs for the full technical details.