Cup o’ Go

News this week:

• 🆕 rc2 is out 
  • Google Groups notice
  • The actual Merge List
• 🇰🇪 GopherCon Africa Oct 18-19
• Does Go benefit more from copilot than other languages?
• Range-over-func demystified
  • Zach Musgrave's post from dolthub; Go range iterators demystified
  • John's take on it; First impressions of Go 1.23's range-over-func feature
• ⚡️ Lightning round
  • "This cli component was trickier to build than I thought" by Dreams of Code on YouTube
  • Introducing Quartz: A Deterministic Time Testing Library for Go by Spike Curtis
  • ov - feature rich terminal pager release v0.35.0

Want to support the show? Here are some ways to do it!

• Twitter (X. Ugh) 
• techhub.social/@cupogo
• YouTube
• Patreon

• Conferences & CFPs
  • 🇮🇱 GopherCon Israel, Sept 9 @ Tel Aviv
    • CFP open until Jul 15
  • 🇦🇺 GopherCon AU, No
    • CFP open until Sept 15
  • 🇮🇳 GopherCon India, Dec 1 @ Jaipur
  • 🇩🇪 Fyne Conf, Sept 20 @ Berlin
    • CFP open until Aug 16
  • 🇸🇬 GopherCon Singapore, October TBD
    • CFP open until Aug 19
• Go 1.23 draft release notes
• ⏲️ Blog: Resetting timers in Go by Anton Zhiyanov
• 🌩️ Lightning Round
  • Geomys, A Blueprint for a Sustainable Open Source Maintenance Firm by Filippo Valsorda
  • github.com/openhue/openhue-go — A library for interacting with the Philips Hue smart lighting systems.
  • github.com/frederikaverpil/neotest-golang — Reliable Neotest adapter for running Go tests in Neovim.
  • github.com/AllenDang/giu — A rapid cross-platform GUI framework for Go.
  • github.com/ergochat/ergo — A modern IRC server written in Go.

• Go 1.22.5 & 1.21.12 released
• Conferences
  • 🇮🇱 GopherCon Israel, Sept 9 @ Tel Aviv
    • CFP open until Jul 15
  • 🇦🇺 GopherCon AU, No
    • CFP open until Sept 15
  • 🇮🇳 GopherCon India, Dec 1 @ Jaipur
• New proposal: include abandoned packages in list of deprecations
• Blog post: gRPC: The Good Parts by Kevin McDonald
• 🍪 New package: github.com/syntaqx/cookie
• Found on Reddit: How Go allowed us to send 500 million HTTP requests to 2.5 million hosts every day

Visit our homepage - cupogo.dev - for links to our Patreon, Store, past episodes, and more.

• 🚢 Releases
  • 1.23 RC1 released
  • 1.22.5 & 1.21.12 pre-release announcement
• Proposals
  • 1️⃣ Accepted: cmd/gofmt: change -d to exit 1 if diffs exist
  • 🆕 Accepted: list deprecations and newer available dep versions 
  • 🪢 Accepted: spec: allow range-over-func to omit iteration variables 
• Community
  • ⛈️ gRPC: The Bad Parts

Thanks, Erik Dubbelboer, John Basila, Suchith, and Hiji, for co-hosting the episode!

• Which GUI library to choose?
• Caesar, a new Go Web Framework
• "How to prove I am good at Go apart from having work experience?"
• "Where should I learn Go?"
• Learn Go with Tests

Visit our homepage - cupogo.dev - for links to our Patreon, Swag Store, and more.

Next week, on June 19th, we're doing a physical meetup! Join #amsterdam on the Gopher Slack to join up.

• 🇩🇪 GopherCon Europe next week, June 17-20
  • Can’t afford to attend online? Fill in this form: https://forms.gle/gcDGxnRJvjXbVPuZ6
• 🎲 math/rand: make global seed a no-op
• 📦 goreleaser v2 released
  • 📼 A few Go tools for production-level developer applications (Orca meetup Mar 2023)
• 🎮 Why is Go not used for game development?
  • GMTK Game Jam 2024 - Hosted by Game Maker's Toolkit
• 🦾 gabyhelp - a new bot to help automate work in the Go issue tracker
• 🧐 5 small tips I recently learned in Go

• Go 1.22.4 & 1.21.11 released
• Proposals
  • New: safer file open functions
    • github.com/google/safeopen alternative
    • openat man page
  • New: allow range-over-func to omit iteration variables
• Blog: Flaky Tests Overhaul at Uber
• Blog: Redpanda acquires Benthos to expand its end-to-end streaming data platform
  • Interview with Ashley Jeffs
    • Twitter
    • LinkedIn
    • GitHub
  • Announcement discussion on Hacker News
  • Redpanda Connect project page
  • Previous Benthos interview in Episode 27
  • Redneck language in RedHat, cerca 1998

• Go 1.22.4 & 1.21.11 coming Tuesday, June 4
• Community events
  • Golang Atlanta meetup, June 13
  • Cup o' Go Meetup in Amsterdam, June 19
  • Golang Tilburg meetup, June 20
• Proposal accepted and implemented: new iterator functions in maps package coming in 1.23
• Reddit: What software shouldn't you write in Go?
• Blog: Blazingly Fast Shadow Stacks for Go by Felix Geisendörf
• Blog: Abusing Go's infrastructure by Pedro Vilaça
• Ad break
  • Episode 15, interview with Adelina Simion about her book, Test-Driven Development in Go
• Interview with Riccardo Pinosio
  • Hugging Face
  • hugot on GitHub
  • ONNX
  • Knights Analytics

• Proposals
  • Accepted: require Linux 3.17 kernel for Go 1.24
    • Previous discussion: Episode 61
  • Accepted: add encoding.AppendText and encoding.AppendBinary
    • Previous discussion: Episode 62
  • Accepted: add HostLayout directive type
  • 🪟 Accepted: Normalize line endings in example output comparisons
• Conference updates
  • 🇮🇱 GopherCon Isreael CFP open until June 30
• 🔒 gosec v2.20.0 released
  • Included in golangci-lint v1.58.2
  • See also: govulncheck
• Open issue: lock down future uses of linkname
  • Related blog post: Accessing Private Functions, Methods, Types and Variables in Go by Yarden Laifenfeld
• Thanks to Miki for filling in!
  • His new book, Effective Go Recipes

• Upcoming conferences
  • 🇯🇵 June 8: Go Conference 2024 @ Tokyo, Japan
  • 🇩🇪 June 17-20: GopherCon EU @ Berlin, Germany
  • 🇳🇱 June 19-21: DevOps Days @ Amsterdam, Netherlands
  • 🇷🇺 June 24-25: Golang Conf 2024 @ St. Petersburg, Russia
• Proposals
  • 👍 Accepted: go telemetry subcommand
    • Previous discussion on Episode 62
  • ⛔ Declined: Notify of new major dependency versions
    • Previous discussion on Episode 62
  • 🆕 New: Make math/rand.Seed a no-op
• The unique package has been implemented
  • ✅ Previous discussion on Episode 33
• Around the community
  • 🤔 Reddit: Is it idiomatic to create a constructor that returns an interface?
  • GitHub CLI 2.49.1 includes contribution from Shay

• Go 1.22.3 & 1.22.10 released
• Proposals
  • Accepted: add binary.Append function
  • Likely accept: new `go telemetry` subcommand
  • Likely decline: Notify about new major versions of dependencies
• Packt book bundle
• Interview with Jamie Tanna
  • Blog: Creating a more sustainable model for `oapi-codegen` in the future
  • Blog: oapi-codegen is moving to its own org
  • on GitHub: github.com/deepmap/oapi-codegen

Consider supporting the show by joining our Patreon!

• 🆕 Releases
  • Go 1.22.3 & 1.21.10 coming Tuesday
• 🪇 Conferences
  • GopherCon Brazil, May 9 & 10
  • GopherDay Taiwan, May 25
• 🤹 Secure Randomness
  • Blog: Evolving the Go Standard Library with math/rand/v2
  • Blog: Secure Randomness in Go 1.22 by Russ Cox
  • new proposal: Require Linux kernel 3.17 for Go 1.24
• 🧑‍🔬 Interview with Bartek Nowotarski about Go vulnerability research
  • Blog
  • HackerOne
  • Twitter
  • HTTP/2 RFC9133
  • Luck

• Proposals
  • 🍪 Accepted: support partitioned cookies
    • Article: Prepare for thrid-party cookie restrictions
  • New: add reflect.AssertTo
  • Declined: builtin is[T any](any) bool
• Meetups & Conferences
  • 🇨🇿 Prague Go Meetup, April 23
  • 🇳🇱 Rotterdam Go Meetup, April 23
  • 🌐 Conf42 Golang, April 25, Online
  • 🇬🇧 GopherCon UK CFP closes May 17
  • 🇮🇹 GoLab CFP closes May 6
• Blog: Welcome to the Microsoft for Go Developers Blog
• Blog: Go performance from version 1.0 to 1.22 by Ben Hoyt
• Interview with Paul Jolly
  • CUE web site
  • Twitter
  • LinkedIn

For more info, transcripts, and all the links, visit https://cupogo.dev.

• 🗳️ 2024 Go Developer Survey
  • Hugot, Huggingface pipelines for Go
  • Why is NPS bad? A blogpost by Jonathan
• 🍕 Meetups
  • 🇺🇸 Denver 
  • 🇺🇸 Atlanta
  • 🇳🇱 Amsterdam
  • 🇮🇱 Israel
• 🧙 An interview with Bill Kennedy
  • Twitter https://twitter.com/goinggodotnet
  • LinkedIn https://www.linkedin.com/in/william-kennedy-5b318778/
  • Ardan Labs https://www.ardanlabs.com/instructors/bill-kennedy/
  • Hanna Hats

This show is supported by you! If you feel so inclined, please become a member of our Patreon: https://www.patreon.com/user?u=52571196

• Go 1.22.2 & 1.21.9 released
  • Blog: HTTP/2 CONTINUATION Flood by Bartek Nowotarski
  • Blog: HTTP/2 CONTINUATION Flood: Technical Details by Bartek Nowotarski
• 🗣️ Conferences & CFPs
  • Official Go "Wiki" conferences list
  • 🏴󠁵󠁳󠁵󠁴󠁿 Go West, October TBD @ Lehi, Utah
    • CFP
  • 🌐 Conf42 Golang, April 24 @ Online
  • 🇧🇷 GopherCon Brazil, May 9-10 @ Florianópolis, SC
• Around the community
  • 🤐 Blog: Prevent sensitive data from leaking by Willem Schots
  • Reddit discussion: If you could redesign Go from scratch, what would you change?
• Ad break:
  • Software you can love conference: https://sycl.it/ 

• Proposals
  • (re)accepted: add slices.Repeat function
  • accepted: report use of too-new standard library symbols with go vet
• From around the community
  • Blog: Context-induced performance bottleneck in Go by Gabriel Augendre
  • New community Q&A site: godev.com, powerd by Apache Answer
  • Blog: Go Enums Still Suck by Steven McCutcheon
    • On Reddit

• 🇮🇹 GoLab 2024 coming up Nov 11-13 in Florence Itally
  • CFP open through May 1
• Proposals
  • 🚫 Declined: time.Parse: letter-based formats
  • 🚫 Declined: support int(bool) conversions
  • 🗨️ Active: add builtin function is[T any](any) bool
  • 🚫 Declined: range over nil function should panic
• Work with Jonathan Hall
• Interview with xiaq
  • 🧝 Elvish web site
  • zsh user manual

• 🇬🇧 Manchester Go Meetup, April 3
• Proposals
  • 🕛 Declined: time: add "1136214245" as layout string for unix timestamp
  • 💪 Active: promote windows/arm64 to first class port
• Go Blog: More powerful Go execution traces
  • Design document: Execution tracer overhaul
• Neovim plugin for gopls documentation links
  • On Reddit
• 👸 Interview with quobix
  • Personal site
  • Princess B33f Heavy Industries
  • libopenapi
  • openapi-changes
  • wiretap
  • vacuum
  • JSON Crack
  • On YouTube
  • API Days conference

• 🛡️ Security releases. Upgrade now!
  • Go 1.22.1 & 1.21.8
  • google.golang.org/protobuf v1.33.0
• 👭 Happy International Women's Day!
• Upcoming meetups & events
  • 🇬🇧 London Gophers, March 20
  • 🇮🇱 Go Israel, March 12
  • 🇬🇧 GopherCon UK
    • Conference, August 14-16
    • CFP is open!
• Accepted proposals: Migrate x/crypto packages into the standard library
• Around the community
  • Go enums suck (hackernews discussion)
  • Reddit: Why does Go have so many traps?
  • Blog: for Loop Semantic Changes in Go 1.22: Be Aware of the Impact
• Interview with Filippo Valsorda
  • Personal web site: https://filippo.io/
  • cryptopals.com challenges
  • Stanford Cryptography course on coursera
  • Recurse Center
  • Read/sign up for Filippo's newsletter/blog
  • The blog post that started it all: I'm now a full-time professional open source maintainer

• 🛡️ Security updates coming on Tuesday
  • Go 1.22.1 & 1.21.8
  • google.golang.org/protobuf and github.com/google/protobuf
• 🧀 Open proposal: use SwissTable to improve hash map performance
• Related releases
  • GopherJS 1.19 beta1 with Go 1.19 support (w/o generics)
  • TinyGo 0.31.0 with Go 1.22 support
• Around the community
  • Upcoming Go Isreal Meetup, March 12 @ Orca
  • GopherVerse, AI-Gopher generator from Creative Fabrica
  • 🔭 GopherWatch, keep tabs on Go modules
    • Created by Mechiel Lukkien, interviewed in episode 3
• Go Blog: Robust generic functions on slices by Valentin Deleplace
• Reddit: My experience with Go as a Python developer
  • 🎙️ glee
• 🏄 Interview with Grant Nelson
  • GopherJS on GitHub
  • Workiva
  • Grant on GitHub

• Meet the hosts
  • Meet Shay: 🇮🇱 Go Israel Meetup, March 12 @ Orca
  • Meet Jonathan: 🇳🇱 Go Amsterdam Meetup, Feb 27 @ Creative Fabrica
• Proposals
  • Declined: 🤐 archive/zip: support for encrypted archives
  • Accepted: 🔁 iter: new package for iterators
  • Accepted: 🗺️ maps: add iterator-related functions
  • Likely accept: 🍕 slices: add iterator-related functions
  • Likely accept: bytes, strings: add iterator forms of existing functions
• Blog post: Questioning Go's range-over-func Proposal by Richard Ulmer
• go generate considered unsafe?

• Proposals:
  • new: add slices.Repeat function
  • accepted: deprecate runtime.GOROOT
• From the Go blog: Routing Enhancements for Go 1.22
• How I write HTTP services in Go after 13 years by Mat Ryer
• Weaveworks shutting down
• On Reddit: Go 1.22 yielding a 18% regression in single-threading performance
• On YouTube: Why I Use Golang in 2024 by ThePrimeTime
• Interview with Daniel Martí
  • Projects
    • gofumpt
    • CUE
    • sh
  • Social
    • GitHub
    • Bluesky

• New releases
  • ♬ Go 1.21.7 and 1.20.14 released
  • 🧹 golangci-lint 1.56.1 released, including support for `--show-stats` and John's bugfix
• Conferences and Meetups
  • 🇮🇱 Go Israel March 2024 hosted by Orca Security
• Go 1.22 Feature Rundown
  • Official announcement, release notes, and download link
  • Cool interactive release notes by Anton Zhiyanov
    • The Loopvar bug has been fixed
    • Range over int is now supported with range over func iterators in experimental mode
    • New math/rand package, the first v2 to land in stdlib
    • New HTTP routing, with support for methods and wildcards
      • Much to Shay's chagrin, Accepted: net/http: allow multiple spaces between method and path in mux patterns
    • New Slices package, including a great blog post about the Concat func from Carlana Johnson
    • Better look for "trace" tool's web UI
• Ad break
  • Patreon

Happy 1st anniversary to Cup o' Go! 🥳

• Proposals
  • go build -json accepted
  • allow append(nil, arg) declined (playground link), because of existing alternative
  • go vet: warn about recover in non-deferred function declined, because of lack of data
  • allow multiple spaces between method and path in mux: new proposal
• Releases
  • gofumpt 0.6.0
  • go-elasticsearch v8.12.0 with OT support
• Community
  • ByteByteGo's "How Disney Hotstar Captures One Billion Emojis!" (Medium article alternative)
• Ad break
  • Patreon
  • Gitting Things Done by Omer Rosenbaum

This show is supported by you! Consider joining as a Patreon member to support the show.

Preview for the Cup o' Go podcast - keep up to date with the Go (golang) community in 15 minutes per week, with Jonathan Hall and Shay Nehmad!

This show is supported by you! Consider joining as a Patreon member to support the show.

• Go 1.22RC2 released
• Take the new Go developer survey
• Learning Go, 2nd edition now available for e-purchase, print coming soon
  • Listen to our interview with the author in Episode 44
• GopherCon talk by Russ Cox: Go Changes
• Highlighting tools
  • goimportcycle
  • typex
    • Reddit thread
  • 🍇 grape
    • Reddit thread

This show is supported by you! Consider joining as a Patreon member to support the show.

Thanks Yarden for coming on the show!

• Proposals
  • Declined: ASCII output in Go tools, PowerShell investigation underway
  • Likely Accept: `-json` flag for go build
• The new Range syntax
  • Go Wiki: Rangefunc Experiment
  • Range over int, over func proposal
  • Go 1.22 range functions with database/sql
• Blog posts
  • Debugging Go compiler performance in a large codebase
  • JaskaGO’s coordinated strike on macOS and Windows
  • Error handling in Go web apps shouldn't be so awkward

You can now sponsor the show directly, via Patreon!

• Go 1.21.6 & 1.20.13 released
• Conferences
  • GoFunc 2024, March 14-15 online, in Russian
  • FOSDEM, Go Devroom Feb 3-4 in Brussels, Belgium
  • GopherCon EU, Athens, Feb 6-8 in Athens, Greece
• Video/transcript of talk by Rob Pike: What We Got Right, What We Got Wrong
• Around the community
  • GitHub's move to generated SDKs
  • Go 1.22: Interactive release notes by Anton Zhiyanov
  • Meet OpenBao, an Open Source Fork of HashiCorp Vault
  • OpenTofu is going GA
  • Apache Answer
  • Pocketbase

• Go 1.22RC1 is out
  • Draft release notes
• golang.org/x/crypto/ssh vulnerability fixed
• CUE 0.7.0 released
  • CUE web site
• Announcing River: fast and reliable background jobs for Go
• Reddit: Why is reinventing the wheel so prominent in Go?
• Reddit: Is it stupid to have a Go backend and NextJs frontend?
• SQLite
  • GitHub: Benchmarks for Golang SQLite Drivers
  • zombiezen.com/go/sqlite 1.0 released
  • Marmot
• Interview with Ross Light
  • Announcement: zombiezen.com/go/sqlite reaches 1.0
  • Blog: Go and SQLite: when database/sql chafes
  • Blog: What color is your function?
  • Ross's blog: zombiezen.com

• 🐚 golang.org/x/crypto/ssh fix pre-announcement, upgrade Monday, December 18
• The Go wiki has moved!
• 🗓️ Go 1.22RC1 coming Tuesday, December 19
• Proposals
  • 👎 declined: cmd/compile: allow compile-time override of constants
  • 👎 declined: cmd/go: add language localization support to go doc
• Go blog: Finding unreachable functions with deadcode
• 🐳 Docker whale-comes AtomicJar, maker of Testcontainers
  • Listen to previous interview with go-testcontainers maintainer Manuel de la Peña in episode 38
• 📚 Books
  • Learn Concurrent Programming with Go by James Cutajar
  • Learning Go, 2nd Edition by Jon Bodner, coming January 2024
• Thanks to all our listeners for making the Cup o' Go podcast a success in 2023! We're looking forward to another great year of Going in 2024.
• Interview with Jon Bodner
  • Read the pre-release of Learning Go, 2nd Edition from O'Reilly
  • LinkedIn
  • Jonathan's review of the 1st edition: Written, or Video

• Go 1.21.5 & 1.20.12 released
• Go Developer 2023H2 survey results are in
• Proposals
  • accepted: deadcode command is on the way
  • new: Add localization support to go doc
  • new: Allow compile-time override of constants
• Blog: Optimizing Go string operations with practical examples by Alex Bledea
• This week's sponsor: Jonathan Hall's Fractional Gopher service
• Interview with Mickey Shnaiderman
  • Previous episode with Benthos interview
  • Previous episode with debugging blog post
  • Reco

• Announcements
  • 🔐 Go 1.21.5 & 1.20.12 pre-announcement
  • 🧊 Go 1.22 frozen, this time for real
• Community
  • ☕️ Mattproud's great Reddit answer for Java developers
  • 🐍 Another good blog post from Preslav about Python vs Go
    • Rich Hickey's talk about a similar subject
  • 🦪 Ralf Steube developed a really cool tool for shell completions
  • 🤫 Small Atom from Brandur about mixing a private function so external packages won't implement it
• Interview with Sam Lown, talking about the Go Business Language, dunking on XML, and marveling at the complexity of human society
  • 🦃 GOBL: https://gobl.org/
  • ⭐️ Star the repo: https://github.com/invopop
  • 🧾 Invopop: https://www.invopop.com/
  • 🐦 Sam's Twitter: https://twitter.com/samlown

• CFPs
  • 🇩🇪 GopherCon Europe, Berlin.
    • Conference dates June 17-20, 2024
    • CFP open until Feb 18, 2024
  • Paged Out
    • CFP open until Nov 25, 2023
• Proposals
  • 📖 accepted: cmd/doc: support 'go doc package@version' syntax
• Releases
  • 🐍 cobra v1.8.0 released
  • Hugo v0.120.0
  • vscode-go v0.40.0
• From around the community
  • NilAway: Practical Nil Panic Detection for Go
  • 🤖 Go-specific ChatGPT bots
    • GopherBro
    • Moss the Go Expert
    • Golang Mentor
  • Miki Shorts on Arden Labs
• Interview with Webb Morris, founder & CTO of Canopy, who leads development of their Remote Monitoring and Management (RMM) platform for smart hardware solutions.
  • Canopy

Thank you to this week's sponsor, Backend Banter!

• Conferences & CFPs
  • 🇧🇪 FOSDEM '24, Feb 3&4 @ Brussels
    • Go Devroom CFP through December 1
  • 🇬🇷 GopherCon EU, Athens, Feb 6-8
    • CFP Through November 19
• 🇧🇷 Ultimate Go Tour from Arden labs now available in Portuguese
  • The original: A Tour of Go
• Proposals
  • ❄️ Accepted: cmd/go: add support for dealing with flaky tests
  • Accepted: x/tools/txtar: implement fs.FS
    • Check out the golang.org/x/tools/txtar package
  • 🦃 Proposal meetings on hold until November 29. Happy Thanksgiving everyone!
• Community Updates
  • There won't be a testify/v2
  • Is it a gopher or a walrus, or General Grievous?
  • Video: The Ultimate Go Blueprint Library
  • Video: Debugging Go core dumps
• [Sponsored] Backend Banter is the only podcast dedicated to backend development, technologies, and careers.
• Get 14% off Cup o' Go Merch with coupon code HAPPYBDAY14 through EOY
• Interview with Lucio Moraes
  • The Ultimate Go Tour
  • GitHub repo
  • On LinkedIn

Thank you to this week's sponsor, Backend Banter!

• 🎂 Happy birthday, Go!
  • Go was announced 14 years ago
  • Watch Russ Cox's intro video
• Go 1.21.4 & 1.20.11 released with important Windows security fixes
• Proposals
  • Make deadcode a supported command
  • Memory arenas on hold indefinitely
• Releases
  • 🦍 Gorilla v1.8.1
  • sqlc v1.23.0
    • Related: Announcing sqlc-gen-go
  • sarama 1.42.0
• AWS SDK for Go Aligns with Go Release Policy on Supported Runtimes (Bye-bye Go 1.5 support)
• Around the community
  • Reddit: What Go-related content creators do you follow?
  • Awesome Go
  • On Rands Slack: discussion about Close() vs GC
    • Request an invitation to the Rands leadership slack
  • Go Case Studies
• [Sponsored] Backend Banter is the only podcast dedicated to backend development, technologies, and careers.

Thank you to this week's sponsor, Backend Banter!

• 🛡️ Security pre-release announcement
  • Go 1.21.4 and 1.20.11 coming on Tuesday, November 7
• Conferences
  • 🇮🇪 GopherCon Ireland yesterday
  • 🇸🇬 GopherCon Singapore ongoing, yesterday and today
  • 🇬🇧 Fyne Conf today
  • 🇦🇺 GopherCon AU, November 10-11
  • 🇨🇳 GopherChina, November 19
  • 🇮🇹 GoLab, Italy, November 19-21
• Proposals
  • Accepted: new package with unique.Handle
    • Blog post: netaddr.IP: a new IP address type for Go by Brad Fitzpatrick
  • ℹ️ New: Standardize -help output
    • Alternate proposal: show the help when the --help/-h flag is passed
  • New: bytes: add Reader methods Buffered, Peek, and Discard
  • Benchmarks:
    • On Hold: testing: add Keep, to force evaluation in benchmarks
    • Accepted: testing: add testing.B.Loop for iteration
• Blog post: Unmasking a Go HTML Parser Bug with Differential Fuzzing by Maciej Mionskowski
  • Related project: radamsa, test case generator for fuzzing
• Discussion: "Real" Go projects that would be considered idiomatic
• pex, a tool to make piping easier
  • On GitHub
  • Demo video
• Podcast: Security Cryptography Whatever
• [Sponsored] Backend Banter is the only podcast dedicated to backend development, technologies, and careers.
• 📦 testcontainers interview with Manuel de la Peña
  • Web site for Testcontainers for Go
  • On GitHub
  • Latest release: v0.26.0
  • Follow Manuel
    • GitHub
    • LinkedIn

Thank you to this week's sponsor, Backend Banter!

• Proposals
  • Accepted: spec: add range over int, range over func
    • Range over int targeted for Go 1.22
    • Range over func targeted for Go 1.22 behind the GOEXPERIMENT=rangefunc flag
  • Accepted: go/version: package for handling Go version strings
  • Accepted: io/fs, net/http: new interface for automatic ETag serving
• Conferences
  • 🧭 GoWest happening TODAY in Lehi, Utah, and online
• Releases
  • golangci-lint v1.55
  • 🛋️ Kivik v4.0
• 📚 Books
  • Learn Go with Pocket Sized Projects (discount code)
    • Jonathan's review
  • GoBooks repository
• [Sponsored] Backend Banter is the only podcast dedicated to backend development, technologies, and careers.
• 🛡️ Interview with Juho Nurminen of Mattermost
  • Social
    • Twitter
    • Mastodon
  • Blog posts
  • cmd/go: go.mod toolchain directive allows arbitrary execution
  • Proposals mentioned
    • os/exec: return ErrDot from LookPath when argument is relative
    • html/template: full support for JS template literals
    • html/template: rewrite JS parser
    • html/template: use x/net/html for parsing
  • Resources
    • PortSwigger
    • HackerOne

Thank you to this week's sponsor, Koyeb!

• gopls v0.14.0-pre4 released
  • Previous discussion about opt-in telemetry in episode 12
• GopherCon Brazil
  • Conference: May 9, 2024 in Florianópolis, SC
  • CFP open until December 15, 2023
• "Forward compatibility" pains
  • Go modules initialised by go1.21.1 cannot be built using go1.20.8
  • Using go mod tidy on v1.21+ breaks usage of older Go mod
• Third-party compression library: github.com/klauspost/compress
• New book: gRPC Microservices in Go by Hüseyin Babal
• Go Blog: Everything You Always Wanted to Know About Type Inference — And a Little Bit More by Robert Griesemer
• Fyne community contributions
  • fyne-streamer: Audio/Video Widget
  • DiagramWidget
  • And don't forget about Fyne Conf coming November 3 in Edinburgh
• [Sponsored] Get $50 in free Koyeb credit by filling out a 2-second form, with code cupogo: https://form.typeform.com/to/HcwWKsAz
• Eliav Lavi
  • lunar.dev
  • Twitter: @eliavlavi

Thank you to this week's sponsor, Koyeb!

• Go 1.21.3 and 1.20.10 released
• Proposals
  • Retracted: untyped builtin zero
  • Accepted: Move wiki to x/website
    • Related discussion (closed for now): Should the Go project stop importing GitHub PRs?
  • Ongoing discussion: encoding/json/v2
    • Checkout last week's episode for related interview with Joe Tsai
• Viper v1.17 released with slog support
• Conferences and events
  • Go Israel meetup, November 7
  • Go Amsterdam meetup, November 21 (tentative)
• Around the community
  • Reddit: What problem did Go solve for Google?
  • Blog: A Deep Look Into Golang Profile-Guided Optimization (PGO) by Yahya Sayad Arbabi
    • Related interview from episode 31 with Peeter Seebach aka Seebs
• [Sponsored] Koyeb new feature alert: Built-in Observability to Monitor Your Apps Performances
• Find the show on YouTube now. "Like and subscribe!"
• 🧬 Interview with Tim Stiles about Poly, a Go package for engineering organisms.
  • Poly
  • GitHub Profile

Thank you to this week's sponsor, Koyeb!

• Go 1.21.2 & 1.20.9 released. Upgrade yesterday!
• 💻 Hacktoberfest is happening now
  • How to participate
  • Go projects participating
• Proposals
  • 🔀 Accepted: testing: shuffle seed should be different when -shuffle=on and -count flag is set
    • Previously discussed in episode 32
  • 🧮 Accepted: math/rand/v2: revised API for math/rand
    • Previously discussed in episode 20 and episode 28
  • 👕 New: gofumpt: Clothe naked returns
  • Discussion: encoding/json/v2
    • Relevant Go JSON benchmarks
• New from the Go team:
  • New in Go 1.21: WASI support
  • Organizing a Go module
    • Adelina's book: Test-Driven Development in Go
• [Sponsored] Koyeb new feature alert: Built-in Observability to Monitor Your Apps Performances
• 🎙️ Interview with Joe Tsai
  • GitHub profile
  • Find the experimental package
    • GoDoc
    • GitHub

Join us on Slack! #cup-o-go on the Gopher Slack.

Thank you to this week's sponsor, Koyeb!

• Go 1.21.2 & 1.20.9 to release Oct 5
• Conferences
  • 🇺🇸 Go West Conference, Lehi, Utah, USA & Online, October 27
  • 🌐 Go-perf Meetup, CFP closes Oct 7, event early November
• Proposals & Bug Reports
  • ☕ Active: Add intern package
  • 🏎️ Closed: cmd/go: 1.21 regression in test times with -race
• Blog posts
  • ⚒️ Forward Compatibility and Toolchain Management in Go 1.21
  • Deconstructing Type Parameters
• [Sponsored] Koyeb new feature alert: Built-in Observability to Monitor Your Apps Performances
• Interview with Ian Smith
  • 🥖 Parigot
  • @iansmith

Thank you to this week's sponsor, Koyeb!

• 🇺🇸 GopherCon, San Diego, CA, USA, September 25-28
• OpenTofu (formerly OpenTF) officially joins the Linux Foundation
  • Blog post: OpenTF is NOT the fork
• 🔀 Proposal: testing: shuffle seed should be different when -shuffle=on and -count flag is set
• Blog posts
  • ➿ Go blog: Fixing For Loops in Go 1.22
  • Go blog: Backward Compatibility, Go 1.21, and Go 2
  • Thoughts on slogtest, by Peter Aronoff
  • 🔠 Capslock: What is your code really capable of?
• [Sponsored] Koyeb new feature alert: Built-in Observability to Monitor Your Apps Performances
• Interview with Wilken Rivera of the Go Developer Network (GDN)
  • About GDN on GitHub
  • GDN on Meetup
  • Sign up to be a sponsor
  • Sign up to be a speaker
  • Blog Post: So You Want To Start a Meetup by Paul Balogh
  • Upcoming GopherCon Events in San Diego
    • GopherCon meetup for meetup-orgranizers, Sept 26
    • GopherCon community day mentorship Sept 26
    • United Go Meetup, Sept 28
    • 👩 Women Who Go Meetup, Sept 26
    • Neurospicy Meetup, Sept 27
    • 🌈 Rainbow Alliance Meetup, Sept 27
  • Slack channels for meetup organizers
    • #meetup-organizers on the Gophers Slack
    • #gdn-meetups on the Gophers Slack

Thank you to this week's sponsor, Koyeb!

• So many conferences!
  • 🇺🇸 GopherCon, San Diego, CA, USA, September 25-28
    • 🎟️ Tickets still available
    • 🏨 Hotel discount extended to Monday, September 18
  • 🇮🇪 GopherCon Ireland, Dublin, November 2
  • 🏴󠁧󠁢󠁳󠁣󠁴󠁿 Fyne Conf, Edinburgh, November 3
    • CFP open until October 6
  • 🇸🇬 GopherCon Singapore, November 2-3
  • 🇦🇺 GopherConAU, Sydney, November 8-10
  • 🇮🇹 GoLab, Florence, Italy, November 19-21
• Proposals
  • encoding: add AppendText and AppendBinary
  • cmd/go: add support for dealing with flaky tests
  • 🗜️ compress/zstd: implement support for compressing and decompressing
• Blog post: CGO Performance In Go 1.21 by Shane Hansen
• 🛸 Gopher Slack update: #general and #random were temporarily abducted by aliens
• Various Localization issues and proposals
  • Proposal: Localization support in Go & x/text: localization support
  • Proposal: cmd/go: add language localization support to go doc
  • Share your thoughts on #cup-o-go
• [Sponsored] Koyeb new feature alert: Built-in Observability to Monitor Your Apps Performances
• Interview with Peter Seebach aka Seebs
  • GitHub

Thank you to this week's sponsor, Koyeb!

• 🆕 Go 1.21.1 & 1.20.8 released
  • ⚒️ Related: Tool dependencies proposal has been accepted, and here's the design document link. We got you covered ;)
• 🎫 Conference updates
  • 🇮🇳 GopherCon India TOMORROW - shoutout Rishi Chandwani for bringing it to our attention
  • 🇬🇧 Fyne Conf Nov 3rd in the UK, CFP open until Oct 6
• Thoughts on the HashiCorp story from Emily Omier
• Perfectly Reproducible, Verified Go Toolchains
• spec: add untyped builtin zero has been accepted
• Shay's experience at the Israel Go meetup, hosted by Lunar.dev
• Applied Go is going on hiatus until October
• [Sponsored] Koyeb new feature alert: Multi-region Dockerfile support
• Interview with Ohad Maislish about opentf
  • https://www.theiacpodcast.com/
  • https://www.env0.com/
  • https://opentf.org/fork
  • https://blog.gruntwork.io/the-future-of-terraform-must-be-open-ab0b9ba65bca
  • https://www.terratag.io/
  • Contact:
    • [email protected]
    • https://www.linkedin.com/in/ohadmaislish/
    • https://twitter.com/DevOpsOhad

Thank you to this week's sponsor, Koyeb!

• Go 1.21.1 & 1.20.8 coming Sept 6
• Conference updates
  • 🇺🇸 GopherCon in San Diego, California, USA, coming Sept 26-29
  • 📼 GopherCon EU videos are online!
• HashiCorp announced open source licence change
• Proposals:
  • Accepted: net/http: enhanced ServeMux routing
    • Related Reddit discussion: Is the standard library enough for a web backend?
  • ⏱️ Discussion: metrics for the standard library
  • 📂 Declined (for now): io/fs: add writable interfaces
• [Sponsored] Blog post: Deploy and scale high-performance background jobs with Koyeb Workers
• 🤿 log/slog deep dive
  • Blog post: Structured Logging with slog
  • Collection of slog handlers and middlewares: github.com/samber/slog-multi
  • Logrus issue: Add slog compatibility layer
  • Proposal (likely accept): testing/slogtest: support sub-tests

• 🇬🇧 GopherCon UK, Aug 16-18
• 🥳 Go 1.21.0 is released!
  • Smallest release since Go 1.5
  • golangci-lint v1.54.0 released with Go 1.21 support 
• Proposals
  • Accepted: 0️⃣ Untyped zero
  • Accepted (and implemented): Use WithCancelCause for eggrgroup.WithContext
  • Accepted: Experimental range support behind GOEXPERIMENT=range
• New library: concurrent-swiss-map v1.0.0
• Blog post: A linter I really recommend you to use if you're doing SQL in Golang by Piotr Jastrzebski
• Interview with Josh Bleecher Snyder
  • The Bitter Lesson
  • Cursorless

• Go 1.21RC4 is out
• 🪳 CVEs
  • CVE-2023-29409 fixed in Go 1.20.7 & 1.19.12
  • CVE-2023-3978 fixed in golang.org/x/net & golang.org/x/net/html v0.13.0
  • CVE-2023-29407 & CVE-2023-29408 fixed in golang.org/x/image & golang/x/image/tiff v0.10.0
• 🗳️ Go Developer Survey open until August 10
• 🆕 gonew: Experimenting with project templates by Cameron Balahan
• 📘 Have you written a book about Go? Contact Bill Kennedy: [email protected]
• Proposal: time: stop requiring Timer/Ticker.Stop for prompt GC
• Blog post: Zero allocations metrics with opentelemetry-go by Howard John
• Interview
  • Benthos project
  • Benthos community links
  • Ashley Jeffs
    • Twitter
    • LinkedIn
    • GitHub
  • Mihai Todor
    • Twitter
    • LinkedIn
    • GitHub

Today we're joined by guest co-host, Adelina Simion! Adelina works at Form3, co-organizer of Women Who Go, London and London Gophers, and is the author of Test-Driven Development in Go.

• 🛡️ Security updates coming August 1:
  • Go 1.20.7 & 1.19.12
  • golang.org/x/image/tiff
  • golang.org/x/net and golang.org/x/net/html
• Conferences
  • GopherCon Singapore, Nov 2-3
    • CFP open until August 14
  • GopherCon, San Diego Sept 25-28
    • ⚡ Lightning Talk submissions open until August 7
• 💀 New deadcode tool
  • Blog post: Are you maintaining dead code?
• 📚 New Go books
  • Shipping Go by Joel Holmes
  • gRPC Go for Professionals by Clément Jean
• Blog post: 5 Ways to Write a Go Database Model by Paul Boyd
• Ad break
  • Stop by the Women Who Go booth at GopherCon UK, August 16-18
• Interview with Donia Chaiehloudj
  • Follow on Social Media
    • LinkedIn
    • Twitter
  • Upcoming book: Learn Go with Pocket-Sized Projects
    • Jonathan's early-access review

• Go 1.21RC3 released
• 🎉 loopvar fix has been ACCEPTED! Likely to be included in 1.22
• Blog post: Coroutines for Go by Russ Cox
• 🌐 net/http.serveMux routing improvements is now an official proposal
• 0️⃣ New proposal: add an untyped zero
• Echo 4.11.0 released

Join us on Slack at #cup-o-go on the Gophers Slack, and  buy your own Cup o' Go Merch 🛍️!

• Security fixes: Go 1.20.6 & 1.19.11 released
• Conferences
  • 🇰🇷 GopherCon Korea, Seoul, August 5-6
  • 🇬🇧 GopherCon UK, London, August 16-18
  • 🇺🇸 GopherCon, San Diego, CA, USA, September 25-28
  • 🇮🇪 GopherCon Ireland, Dublin, November 2 (CFP ends July 14)
• 🦍 Gorilla's Back!
• govulncheck v1.0.0 released
• Blog post: Finding bugs with fuzzing by John Arundel
• act, Run GitHub Actions locally,v0.2.48 released
• More job-hunting resources:
  • #jobs-wanted channel on the Gopher Slack
  • r/golang's monthly pinned Who's Hiring post

• Go 1.21 coming soon
  • 🍕 New cmp, slices, and maps packages
  • 🪵 Structured logging
• Execution tracer overhaul, targeted for Go 1.22
  • Issue #60773
  • Proposal doc
• Should the Go project stop importing GitHub PRs?
  • GitHub Discussion
  • Reddit Discussion
• 📻 Blog post: Podcasts for Go Developers
• Where to find Go jobs
  • Go Israel Meetup job board
  • On the Gophers Slack
    • #jobs - 📰 Postings for Go jobs
    • #jobs-remote - 🌐 Postings about remote jobs
    • #contract_freelance - Freelance/contract jobs
    • #jobs-discussion - 💬 Discussions about the job market, job searching, career advice, etc.
• Blog post & announcement: Working on sqlc full-time
• Reddit discussion: Is there a Vercel-like service to deploy a simple Go app?
• Tweet thread: Go as a first language

Ad break:

• Lunar.dev API Consumption blogpost 

Conferences:

• GopherCon AU CFP through July 31 

Proposals:

• Accepted: Add generic database/sql.Null[T]
• Declined: Add YAML to stdlib
• Likely accept: Make GOPATH invincible 

Go 1.21 overview:

• Find the release notes here
  • Go 1.21 improves build speed by up to 6%, largely thanks to building the compiler itself with PGO.
  • New stack traces
  • Type inference improvements
  • Unicode 15.0.0

Releases:

• Delve 1.21.0
• goreleaser v1.19.0

Ad break:

• Our gopher is named Brewster now!

Interview:

• Nofar Schnider
• Yarden Laifenfeld
• Women Who Go official site

Thank you to this week's sponsor, Koyeb!

• 🇪🇺 GopherCon EU next week in Berlin! June 26-29
• 🧪 Go 1.21rc2 is out
  • Read the draft release notes
• 💬 Discussion (closed): Add package forwarding
• 💬 Discussion (ongoing): Move HTTP/2 to the standard library
• Community highlights
  • 🎮 Dendy, NES emulator written in Go
  • grank.io, Go packages ranked by Google Page Rank and GitHub stars
• 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!
• Interview with Go 👨‍🏫 teacher and 📚 author, John Arundel
  • On Twitter: @bitfield
  • On LinkedIn: bitfieldconsulting
  • Web site: bitfieldconsulting.com
  • Video: Things in Go I Never Use by Mat Ryer
  • Video: What is the best book to learn Go in 2023?

Thank you to this week's sponsor, Koyeb!

• Go 1.20.5 & 1.19.10 released
• VSCode-go v0.39.0 released
• 🖩 Discussion: Add new API for math/rand 
• 📊 SO 2023 Survey Results
• The internet is on strike!
  • /r/golang is temporarily restricted
  • Stack Exchange moderation strike
• 👩 Women Who Go
  • 🇮🇱 Women who Go Israel is back
  • 🇬🇧 Also check out our past interview with Adelina Simion, co-organizer of Women Who Go London
• Blog post: Go Sync or Go Home: WaitGroup by Yarden Laifenfeld
• 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!
• Help us name the show's gopher mascott on the Slack channel, #cup-o-go
• Interview with Andy Williams
  • Fine project web site
  • Andy's web site: andy.xyz

Thank you to this week's sponsor, Koyeb!

• Go 1.20.5 & 1.19.10 coming any moment now
• Proposals
  • 📜 Accepted: Add `else with` to templates
  • ⌚ Likely accept: cmd/vet: time.Since should not be used in defer statement
  • New proposal: database/sql: add generic Null[T]
• Releases
  • Hugo v0.113.0 with HTTPS support
  • 🐍 spf13/viper v0.16.0
  • golangci-lint v1.53.0, .1, & .2, with several new linters, and many updates
  • 🍣 BurntSushi/toml v1.3.0 & .1, with experimental TOML 1.1 support
• Blog post: Improving Observability of GoLang Services
• 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!
• Production note: Starting next week, we'll be releasing episodes on Fridays.
• Interview with Yann Léger
  • Koyeb
  • Connect with Yann
    • LinkedIn
    • Twitter

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

• Go 1.20.2 & 1.19.7 released
  • Go 1.20.2 milestone
  • Go 1.19.7 milestone
• goreleaser v1.16.0 & v1.16.1 released
  • OpenCollective
  • Babel.js
  • Women Who Code
• Proposals
  • Accepted: Add testing.Testing() bool function
  • New: Track tool usage in go.mod
  • New: Opt-in transparent telemetry
• Introducing ngrok-go: Ingress to your Go Apps as a net.Listener
• Code coverage for Go integration tests
• Conferences
  • Finall call for CFP to GopherCon in San Diego
• Erik Dubbelboer
  • On GitHub: https://github.com/erikdubbelboer  
  • fasthttp
  • Amsterdam Golang Meetup

• Opting In to Transparent Telemetry by Russ Cox
• Accepted proposal: net/http: add ResponseController.EnableFullDuplex
• Last call for comments: log/slog: structured, leveled logging
• BadgerDB v4.0.1 released
• dominikbraun/graph v0.16.0 released
• Service Weaver announced by Google
• conc v0.3.0 released
• Technology Trends for 2023 by O'Reilly Media
• Conferences
  • GopherChina, June 9-11
• xc
  • Web site: xcfile.dev
  • On GitHub
• Interview notes
  • Transistor.fm podcast hosting
  • Riverside.fm audio/video recording
  • Audacity open-source audio software
  • Trello
  • Jonathan's other content
    • Daily Go newsletter
    • Boldly Go YouTube channel
    • Tiny DevOps podcast
    • Adventures in DevOps podcast
  • News sources
    • golang-announce Google group
    • Go Proposals review meeting minutes
    • The Go Blog
    • Golang Weekly newsletter
  • Favorite podcasts
    • Ditching Hourly with Jonathan Stark
    • Deep Questions with Cal Newport
    • No Nonsense Agile
    • Hidden Brain
    • Art of Manliness
    • Revolutions

Shay is out this week, so Jonathan is holding down the fort on his own, in this shortest ever episode of Cup o' Go!

• Gin v1.9.0 released
• Labstack Echo v4.10.2 released
• Declined proposal: don't reformat single line if statements
• New proposal: use a zero for third digit for major release, such as 'go1.23.0'
• Active proposal: structured, leveled logging
• Conf42: Golang, online April 20, 2023
  • CFP
• We miss you, Shay!
• Awesome Go

This week's episode sponsored by Keep, an open-source alerting tool built by developers, for developers.

• Security fixes in Go 1.20.1, 1.19.6, golang.org/x/image, and golang.org/x/image/tiff
  • Go 1.20.1 changes
  • Go 1.19.6 changes
  • Labstack Echo v4.10.1
• TinyGo 0.27.0 changes
• Golang Weekly newsletter
• Purego, a library for calling C functions from Go without Cgo.
• Accepted proposal: New standard library package based on x/exp/slices
• Go Blog: All your comparable types by Robert Griesemer
• Go-Redis is now an official Redis client
• plumber v2.1.0
• Reddit discussion: What are the best alternatives to gorilla session?
• FOSDEM'23 talk: Our Mad Journey of Building a Vector Database in Go
• Interview with Daniel Nephin
  • On GitHub
  • gotestsum
  • gotest.tools

Find us at cupogo.dev.

• Pre-release announcement for Go 1.20.1 & 1.19.6 to fix private security issues
• Pre-release announcement for golang.org/x/image/tiff & golang.org/x/image to fix private security issues
• Transparent Telementry
  • GitHub Discussion (now locked)
  • Blog post explaining the problem and proposed solution
• GopherCon Israel
• Apache Arrow 11.0 released
• Matt Topol
  • GitHub profile
  • Voltron Data
  • Book: In-Memory Analytics with Apache Arrow
  • Presentation at SubSurface: Understanding Apache Arrow
  • Presentation at ApacheCon 2022: Apache Arrow and Go: A Match made in Data
  • Apache arrow project web site
  • Apache Go library
  • Follow Matt on Twitter, LinkedIn or Mastodon
  • Matt will be speaking at the free, virtual conference Subsurface on March 1

• The big news this week: Go 1.20 is out!
  • Profile-guided optimization is here
  • context.WithCancelCause is added
• Go 1.18 is no longer supported
• Proposals this week:
  • Accepted: A proposal to improve forward compatibility with go.mod
  • Accepted: A proposal to add a new stdlib package with map utilities
  • Discussion: A proposal to improve reporting of failed table tests
• golangci-lint 1.50.0 and 1.50.1 were released with Go 1.20 support, and improved generics support
• The Gorilla toolkit has been archived and deprecated. R.I.P.
• Check out Sourcegraph's new concurrency library, conc
• Events
  • GopherCon Israel happening tomorrow
  • Conf42 coming up April 20, online
    • CFP open until March 20
• This week's interview:
  • mox by Mechiel Lukkien
  • xkcd 1172: Workflow
  • Video: Code review of mox

January 30, 2023

• Latest official pre-release: 1.20RC3 released Jan 12
• Changes to OS support in 1.20:
  • Final version to support Windows 7, 8, Server 2008, and Server 2012
  • Final version to support macOS 10.13 and 10.14
  • Adds experimental support for FreeBSD/RISC-V
• Proposal accepted: Optionally include file path in output of failed tests
• gotestsum v1.9.0 recently released
• Upcoming conferences
  • FOSDEM Go Devroom in Brussels, February 4.
  • Gophercon EU Diversity Scolarship application form
• Join us on the Gophers slack, channel #cup-o-go
• Fill out the Go Developer Survey
• GoLand 2023.1 Early Access Program
• This week's non-sponsor: Hugo, the world’s fastest framework for building websites
  • Check out our web sites built with hugo: jhall.io, boldlygo.tech, and mrnice.dev
• Today's guest, Miki Tebeka
  • Twitter: @tebeka
  • Go Israel meetup group
  • GopherCon Israel

January 23, 2023

• Latest Go releases: 1.19.5, 1.18.10, released January 10 with a number of mis bugfixes
• Next major release: 1.20, expected in February
  • 1.20 multi-error wrapping
  • 1.20 memory arenas
    • Why Discord Is Switching From Go To Rust
• Go Developer Survey, Jan 2023
• Upcoming Conferences & CFPs
  • GopherCon Israel Expo, February 7 in Tel Aviv
  • GopherCon, September 26-29 in San Diego, California
    • CFP open until March 13
  • GopherCon Europe, June 26-29 in Berlin, Germany
    • CFP open until February 26
• This week's non-Sponsor: PocketBase
• Discussion
  • Jonathan Hall
    • Video: 10 Things I Hate About Go
  • Shay Nehmad
    • Rand's Leadership Slack
    • Reco

Contact us! [email protected]