--- title: "Issue #614: A slightly unusual issue, in three acts — Go Weekly" url: https://daily.dev/posts/issue-614-a-slightly-unusual-issue-in-three-acts-go-weekly-nra7hietr source_url: https://golangweekly.com/issues/614 type: article source: "Golang Weekly" published: 2026-08-14T10:51:41.421Z updated: 2026-08-14T10:52:04.063Z tags: ["golang"] reading_time: 4 upvotes: 5 comments: 0 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. # Issue #614: A slightly unusual issue, in three acts — Go Weekly **[Golang Weekly](https://daily.dev/sources/glw)** · 4 min read · 5 upvotes · 0 comments ## Summary This roundup covers a Google blog post arguing Go is well-suited for AI-assisted coding (and the pushback it received on Hacker News and Reddit), plus a batch of Go ecosystem news: Go 1.27 Release Candidate 3 is out with the final release expected soon; Go 1.26.6 and 1.25.13 shipped with ten security fixes, including two addressing malicious GOPROXY/GOSUMDB checksum bypasses; and Fiber 3.5 released with speedups and middleware security hardening. Also featured: a profile-guided optimization experiment on encoding/json showing up to 4.7% throughput gains, a look at integrating llama.cpp into Go without CGo, GopherCon UK slides on proposed Go 1.28 set types, a TypeScript-to-Go CLI rewrite story from Appwrite, and a roundup of the newsletter's own highlights from earlier in the year. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What security vulnerabilities were fixed in Go 1.26.6 and Go 1.25.13? Go 1.26.6 and Go 1.25.13 shipped together with ten security fixes. Two of the fixes address issues that let a malicious GOPROXY or GOSUMDB slip module content past the checksum database, allowing tampered dependencies to bypass verification. Developers relying on module proxies should update to these patched versions. _Developers tracking Go security patches can follow release details like these on daily.dev._ ### When is Go 1.27 expected to be released? Go 1.27 Release Candidate 3 has shipped, with the final release expected to follow within about a week, since final Go releases typically arrive roughly a week after the third release candidate. It will be announced on the official Go blog when it lands. _Teams planning a Go 1.27 upgrade can track release timing news on daily.dev._ ### How much throughput improvement does profile-guided optimization give for Go's encoding/json package? Enabling profile-guided optimization (PGO) on encoding/json parsing yielded up to 4.7% more throughput in a benchmark experiment. The test trained profiles on three different JSON documents and measured each resulting build against all three, checking how well a profile trained on one workload transfers to previously unseen workloads. _Developers evaluating Go performance tuning options can find PGO benchmarks like this on daily.dev._ ## Similar posts on daily.dev - [Issue \#606: Go 1.27 Release Candidate 1 — Go Weekly](https://daily.dev/posts/issue-606-go-1-27-release-candidate-1-go-weekly-aro0bxder) · Golang Weekly · 6 upvotes · 0 comments - [Golang Weekly Issue 569: September 10, 2025](https://daily.dev/posts/golang-weekly-issue-569-september-10-2025-f4bdct4lg) · Golang Weekly · 10 upvotes · 0 comments --- Tags: [#golang](https://daily.dev/tags/golang) [View this post on daily.dev](https://daily.dev/posts/issue-614-a-slightly-unusual-issue-in-three-acts-go-weekly-nra7hietr)