Modern Go in 2026: New Language Features, Faster Runtime, and Where It Wins
A field guide to modern Go in 2026: iterators, generic methods, Green Tea GC, JSON v2, and where Go still beats Rust for real backend and AI agent work.
Golang
Go CLI Frameworks in 2026: Cobra vs urfave/cli vs Bubble Tea
Go CLI framework showdown for 2026: Cobra vs urfave/cli vs Bubble Tea. Real code, boilerplate counts, and when to reach for each, after building all three.
Go's JSON v2 (encoding/json/v2): Faster, Stricter, and What Breaks
Go's encoding/json/v2 is a reported 2–10x faster at unmarshaling but flips v1 defaults: duplicate keys, nil slices, case matching. How to enable it and migrate.
How to Build an AI Agent in Go (From Scratch, No Framework)
Build an AI agent in Go from scratch: a tool-calling loop against the Anthropic API in ~120 lines, no frameworks, with real code and the gotchas I hit.
Go Generic Methods: A Hands-On Go 1.27 Tutorial
Go 1.27 finally adds generic methods: type parameters on methods at last. A hands-on tutorial on the syntax, the chaining it enables, and the interface catch.
Rust vs Go in 2026: Which One Should You Learn?
Rust vs Go in 2026: learn Go for 80% of backends, add Rust for the 20% where 5x tail latency and 2–4x less memory pay off. Real benchmarks and salary data.
Go 1.26 Tutorial: Green Tea GC, SIMD, and 8 Features Worth Knowing
Go 1.26 ships Green Tea GC by default (10-40% less overhead), experimental SIMD, runtime/secret, and a rewritten go fix. Hands-on code for each feature.
Go Iterators: A Practical Guide to the iter Package
How to write a custom Go iterator using iter.Seq and iter.Seq2, handle early termination, convert push to pull with iter.Pull, and avoid the yield traps.