~golangweekly | Issue 554 - Ian Lance Taylor takes a break from Go (12)

UPX 5.0: The 'Ultimate Packer' for EXecutables — Staying on the theme of compression.. UPX is a tool that adds run-time compression and decompression to executables to reduce their size. It’s not Go specific but can work on Go executables as Ben Boyter discovered back in 2019.

Goldmark: A Markdown Parser Written in Go — Pure Go, easy to extend, and CommonMark compliant (which GitHub-Flavored Markdown is based upon). There’s also a WebAssembly powered Goldmark playground you can try.

Compress: Optimized Compression Packages for Go — Covers a variety of compression standards like zstandard, S2, gzip, snappy, and zip.

Ian Lance Taylor Has Left Google — One of the most active contributors to Go (and the initial creator of the Go frontend for GCC) has left Google and, in turn, the Go project, though he hopes to return as a contributor one day. As a commenter on the related Hacker News thread (which is packed with all sorts of conjecture) said: “It’s hard...

New Experimental 'Green Tea' Garbage Collector — A proposal outlining a new span-based, “memory-aware” GC algorithm focused on small objects that improves spatial and temporal locality on modern multi-CPU systems by better exploiting memory topologies and cache hierarchies. Benchmarks are mixed, but it’s early days. You can try it out today with gotip and it’s slated to be an opt-in experiment in Go 1.25.

Which Go Router Should I Use? — Alex looks at some popular routing options, citing the pros and cons of each and wrapping it up with a nice decision flowchart and a list of other routing options. We’ve linked to this before but he’s updated it for 2025.

Centralize HTTP Error Handling in Go — A nice pattern to clean up your HTTP handlers by creating a custom error and wrapper function.

pdfcpu: A PDF Processing and Manipulation Library — You can validate and optimize PDFs, split them, merge PDFs together, extract elements, and more. The latest version adds support for digital signature validation and improved image handling. GitHub repo.

Outpost: Outbound Webhooks and Event Destinations Infrastructure — A way to add reliable outbound webhooks and events to your apps with support for destination types such as Amazon EventBridge, AWS SQS, AWS SNS, GCP Pub/Sub, RabbitMQ, and Kafka.

Fx 36.0: A Command-Line JSON Processing Tool — If you’ve got some files full of JSON that you want to slice and dice, Fx is for you. Notably, v36 adds support for streaming JSON and tailing such streams, it’s also much faster and less memory hungry when parsing the largest of JSON files. A solid update for a very handy tool.

Complete Go for Professional Developers — Craft production-grade APIs with Go, the language trusted by tech giants! Connect to Postgres, implement auth, and write tests that matter. Taught by a Twitch ML engineer who solves real problems with Go daily.

Go Panicked Again? Yeah, Sentry Saw It—and Kept the Receipts — Goroutines are great—until one quietly dies. Sentry catches panics, traces them back, and gives you full context. 👉 Try it free before your next deploy gets weird.