--- title: "Go Experiments Explained– Alex Edwards" url: https://daily.dev/posts/go-experiments-explained-alex-edwards-sm6hytjgo source_url: https://www.alexedwards.net/blog/go-experiments-explained type: article source: "Alex Edwards" published: 2026-06-01T09:13:15.659Z updated: 2026-06-01T09:13:39.073Z tags: ["golang"] reading_time: 10 upvotes: 3 comments: 1 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Go Experiments Explained– Alex Edwards **[Alex Edwards](https://daily.dev/sources/alexedwards)** · 10 min read · 3 upvotes · 1 comments ## Summary Go ships experimental features that allow real-world feedback before changes become permanent. These experiments cover new standard library packages, compiler/runtime changes, and occasionally breaking behavioral changes. Controlled via the GOEXPERIMENT environment variable, experiments can be off-by-default (opt-in), on-by-default with a temporary opt-out, or 'permanent experiments' that will never graduate to GA. A full table of current experiments as of Go 1.26 is provided, including GreenTeaGC (new GC, now default), JSONv2 (new encoding/json/v2 package), GoroutineLeakProfile, RuntimeSecret, and SIMD support. Practical guidance is given on enabling/disabling experiments via GOEXPERIMENT and which ones are most relevant to everyday Go developers. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@khauma** · 0 upvotes > Good to know, thanks! ## Similar posts on daily.dev - [Issue \#604: Go experiments, explained — Go Weekly](https://daily.dev/posts/issue-604-go-experiments-explained-go-weekly-eisayxbox) · Golang Weekly · 5 upvotes · 0 comments --- Tags: [#golang](https://daily.dev/tags/golang) [View this post on daily.dev](https://daily.dev/posts/go-experiments-explained-alex-edwards-sm6hytjgo)