Does Go 1.27's json v2 break your LLM parsing? We tested
Go 1.27 runs encoding/json on the v2 engine. We tested 11 LLM-style payloads on Go 1.26.9 and 1.27.2: v1 behaved the same, v2 is stricter, Unmarshal is 2.3x faster.
Sat Oct 17 2026 · 10 min read · 0 views