Thank you to this week's sponsor, Koyeb!

• New builtins, min & max coming in Go 1.21
• Discussion: Possible enhancements to http.ServeMux routing
• Hugo v0.112.0-.5 released
• Check out Gont, A testing framework for distributed Go applications
• Random Testing blog series by John Arundel, Fuzz Testing in Go
• Koyeb is a developer-friendly serverless platform to deploy apps globally. No-ops, servers, or infrastructure management. You can run Web apps & APIs, event-driven serverless functions, background workers, and even cron jobs!
• This week on the #cup-o-go Slack
  • Thanks to the admins over on the Gopher Slack for getting RSS integration working on the #cup-o-go channel
  • 🍿 More on finalizer woes: https://github.com/go4org/intern/issues/2, https://github.com/go4org/intern/pull/4, https://github.com/josharian/intern
  • Call for help: Talks, blogs, Tutorials on how to write and think like a Gopher
  • Thread on RSS, Email, blogging, and all that fun stuff

A big thanks to this episode's sponsor, Koyeb!

• Proposal, accepted and merged: slices: add Reverse
• Correction: GOEXPERIMENT=gocacheprog feature won't introduce new cache invalidation bugs
• New proposal: strings.First function
• Blog post: Some notes on the cost of Go finalizers (in Go 1.20) by Chris Siebenmann
• PayPal's key-value store, JunoDB, has been open-sourced
• Koyeb is a developer-friendly serverless platform to deploy apps globally. No-ops, servers, or infrastructure management. You can run Web apps & APIs, event-driven serverless functions, background workers, and even cron jobs!
• ☕ Merch is being delivered! Share a selfie on social media! #cupogo
• Interview with Christoph Berger
  • Subscribe to the Applied Go Weekly newsletter
  • Check out Christoph's excellent Go courses
  • Read the Applied Go blog
  • Applied Go on YouTube

• Conferences: 
  • GopherCon Europe, Berlin, June 26-29
  • Gopher China, June 9-11
• Go Dev Survey 2023Q1 results 
• StackOverflow Dev Survey 2023
• Proposals
  • A formal proposal to change loop variable semantics 
  • Limit cap of Buffer.Bytes() result
  • New Proposal: Optional improved caching
• Community
  • SemanticDiff supports Go 
  • Redis go client 
  • "Anyone knows of any good Go podcasts?"
    • Go Time https://changelog.com/gotime
    • go podcast() https://go.transistor.fm/
    • Arden Labs https://podcasts.apple.com/us/podcast/ardan-labs-podcast/id1539547911
    • Cup o' Go https://cupogo.dev/
• Ads
  •  Check out our merch on https://www.store.cupogo.dev/
• Interview with Lane Wagner
  • Check out boot.dev!
  • On YouTube as well
  • On "Adventures in DevOps" 

Check out our new Merch store and buy your very own Cup o' Go coffee mug or sticker!

• Go 1.20.4 and Go 1.19.9 are released
• Conferences:
  • Go Conference 2023 Japan, Online June 2
  • GothamGo, New York City June 9
• Proposals
  • Likely decline: Add new testing/cmp package
  • Retracted: Add .ʕ◔ϖ◔ʔ as an alternate spelling of .go in file names
  • Ongoing discussion: Add new package cmp, with Ordered, Min, Max
• Blog post: Template rendering in Go: a software optimization tale
• Automatic test runner: Gokiburi
  • And the older project, GoConvey
• Blog post: The Bubbletea (TUI) State Machine pattern
• New projject: Bunnify, a library for publishing and consuming events for AMQP
• Interview with Adelina Simion
  • Buy the book: Test-Driven Development in Go
  • Blog: adelinasimion.dev
  • Connect on LinkedIn or Twitter
  • Meetups: Women Who Go (London) and London Gophers
  • Speaking at GopherCon UK, August 16-18

• Go 1.20.4 & 1.19.9 coming tomorrow
• Conf42: Golang talks available online
• Text marshaling & unmarshaling added to regexp package for 1.21
  • Jonathan's video about the proposal, acceptance, and change process
• Blog post: WebSockets: Scale at Fractional Footprint in Go
• Reddit question: Which books should I read as an experienced Go developer?
  • Shay's recommendation: Designing Data-Intensive Applications by Martin Kleppman & Benjamin Lange
  • Jonathan's recommendation: Go Fundamentals by Mark Bates & Cory Lanou (Jonathan's review)
• Blog post: FireScroll - A Highly available multi-region KV database with massive read scalability

On the news this week:

• 🇧🇷 GopherCon Brasil CFP open until May 3 
• 🇮🇹 GoLab 2023 CFP open closes on May 21 
• 💬 io/fs: writeable interface new discussion asking for use cases. If you have a project that uses a writeable abstraction interface, go there!
• ✅ GOEXPERIMENT=loopvar is in! Will be included in 1.21 
• 🍵 gitea v1.19.1 released with breaking changes 
• ᚬ log/slog: Add vet checks for variadic inputs discussion in GitHub and our Slack
• ⛙ context.Merge is on hold until AfterFunc has been out in the wild for a while to see if the proposal will need to be resurfaced

Interview with Fraser Williams and Callum Williams from Go Tek. If you're looking for a Go job, contact them via LinkedIn!

• Go 1.20.3 & 1.19.8 released. Upgrade now!
• Proposal accepted: Opt-in transparent telementry
• New proposal: sort: add Ordered, Min, Max
• Conf42: Golang, April 20
• Go OpenAI 1.7 released
• Natalie Pistunovich's GopherCon Israel talk: AI-Assisted Go: Up Your Game and Have More Fun (Hebrew)
• gofumpt 0.5.0 released
• cobra v1.7.0 released
• FerretDB 1.0 GA released
  • Reddit discussion
• GoLand 2023.1 released
• goreleaser v1.17.0 and v1.17.1 released
• ws v1.2.0 released
• Want to work with Shay? Reach out at mrnice.dev

• [April Fool] Sound of Silence reaction
• Go 1.20.3 & 1.19.8 coming tomorrow
• [April Fool] Go Compiler Now Supports Morse Code
• Conf42: Golang, free online conference, April 20
• Ebitengine 2.5.0 with XBox support
• Proposals and discussions
  • Open issue: Mockable time support
  • Discussion: Should Plan9 support be dropped or forked?
  • Likely accept: add context.AfterFunc
  • Many active and open proposals related to structured logging
• Blog post: Go linters configuration, the right version by Oleg Kovalov
• Blog post: 6 Ways To Boost the Performance of Your Go Applications by Mehmet Sezer
• Reddit: What other languages have charactaristics similar to Go?

• Coming in Go 1.21
  • Blog post: Planning Go 1.21 Cryptography Work by Filippo Valsorda
  • disallow anonymous interface cycles
  • purego implementation of hash/maphash
• Releases
  • v8go v0.9.0
  • gitea v1.19.0
  • go-github v50.2.0
• Community news
  • Shay Nehmad's make-git-better CTF
  • Go Time podcast
  • chatGPT-plugin-template on GitHub
    • The tweet
    • Daniel Nephin's gotest.tools and gotestsum
  • GitHub Actions and Go by Oleg Kovalov
    • golangci-lint

• golangci-lint 1.52.0 released
• revive 1.3.0 & 1.3.1 released
• fasthttp v1.45.0 released
  • Last week's interview with fasthttp maintainer, Erik Dubbelboer
• Conf42: Golang 2023 last call for CFPs
• Proposal accepted: log/slog: structured, leveled logging
• Proposal: add opt-in transparent telemetry to Go toolchain
• Proposal: notification callback for cancelled/expired contexts
• Proposal: improve ergonomics of fmt.Print-like functions
• PGO will be auto by default in Go 1.21
• Rant
  • Reddit: What "sucks" about Golang?
  • Lies we tell ourselves to keep using Golang
  • I want off Mr. Golang's Wild Ride
  • Jonathan's Video: 10 Things I Hate about Go
• Interview with Tamir Friedman
  • Beyond Go slides
  • GopherJS: Go to JavaScript transpiler
  • otto: JavaScript parser and interpreter written natively in Go
  • v8go
  • kivik: CouchDB client library for Go
  • Go Israel March 2023 meetup