Go 1.25 rc1 has been released, and it comes with many improvements under the hood. In this video, we'll explore the changes in the WaitGroup, json/v2 module, and GOMAXPROCS functionality. If you also want to check out the new synctest package, feel free to give this video a shot: https://youtu.be/1ZlcsgkOvCk


📝 Description
Go 1.25 is here in its release candidate phase! While it may not bring flashy new features, it introduces powerful improvements under the hood that every Go developer should know about. You will learn the following things:
• Experimental new Green Tea garbage collector
• Important improvements in the Go 1.25 release candidate
• The new WaitGroup.Go convenience method for cleaner, safe concurrency
• json/v2: Faster, more flexible JSON handling
• Smarter GOMAXPROCS


⏳ Timestamps:
00:00 - Introduction
00:21 - Green Tea GC Algorithm
01:10 - Go WaitGroup
04:31 - json/v2
11:19 - GOMAXPROCS
15:37 - Outro


🔗 Links:
GitHub Go WaitGroup: https://github.com/golang/go/blob/master/src/sync/waitgroup.go


👋 Hey there!
If you are new to this channel: Hey 👋 my name is Flo and I am a professional software engineer with a passion for coding in Golang, TypeScript, JavaScript, and Rust. This channel is where I share that passion and dive into the exciting world of software engineering.


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📝 Copyright Notice
The original Go Gopher version is originally designed by Renée French (Source: https://go.dev/blog/gopher License details: https://creativecommons.org/licenses/by/4.0/). The gopher used in the video and thumbnail is inspired by this author.


#golang #go1.25 #go

YouTube

Go 1.25 introduces several performance improvements including the experimental Green Tea garbage collector that reduces GC overhead by 10-40%, a new WaitGroup.Go() utility function for cleaner concurrency code, JSON v2 package with better performance and new features like inline struct tags and unknown field handling, and native container CPU limit awareness that automatically adjusts GOMAXPROCS based on cgroup constraints.

Go 1.25 is not flashy.. it's just faster and smarter!

<p>The title says “not flashy,” but I think it’s flashy enough for me.</p>
