Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
Use the GetCertificate callback in Go's tls.Config to load a renewed certificate on the next handshake, with no restart. Steps, caveats and a test.
Go supports each major release until two newer majors exist. See what that means for upgrade cadence, CI matrices and security fix planning.
Go stores downloaded modules in a read only module cache. Learn why it is read only, what the modcacherw flag changes, and when to clear it with go clean.
A replace directive swaps a module's contents for your fork but applies only in the main module. Know what it fixes, what it misses and how to track it.
go list -m -u all shows each Go module in your build and the newer version available. Learn how to read it, parse it, and turn it into a patch routine.
With a version suffix, go install ignores your current module. Pin an exact version for tools you depend on, and use latest only when you mean to.
What go install with @latest does, why it ignores your go.mod, and how to pin Go developer tools so every laptop and CI job builds the same version.
Since Go 1.21 the go line in go.mod is a minimum and the go command can switch toolchains. Learn GOTOOLCHAIN values and how to keep patch levels current.
go generate never runs automatically during go build or go test. Here is what a go:generate line can do, and how to review one in your own repository.
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