🌀 JSON v2 in Go (2025): What Actually Changed

#go #webdev #programming

Go’s new JSON stack landed in 2025 — but what really changed, and do you need to rewrite your code?

Here’s the short version:

•✅ Your old Marshal/Unmarshal still works (no big migration)
•⚡ New helpers: MarshalWrite, UnmarshalRead for direct I/O
•📡 Real streaming via jsontext.Encoder/Decoder
•🏷️ Smarter field tags (inline, format:DateOnly, unknown)
•🚀 Faster decoding + stricter defaults (catch bugs early)

Think of JSON v2 as a tightened toolkit: same foundations, but with better defaults, streaming, and performance.

👉 Full breakdown with practical examples here:
https://levelup.gitconnected.com/json-in-2025-what-actually-changed-in-v2-and-how-to-use-it-27d99efc5fcb