gopls/v0.11.0

This is a small release containing new integrations of vulnerability analysis.

Vulnerability analysis for go.mod files can be enabled by configuring the "vulncheck" setting to "Imports". For more information on vulnerability management, see the Vulnerability Management for Go blog post.

Support changes

This release removes support for the "experimentalUseInvalidMetadata" setting, as described in the v0.10.0 release. Other settings slated for deprecation in that release remain temporarily supported, but will be removed in v0.12.0.

New Features

Analyzing dependencies for vulnerabilities

This release offers two different options for detecting vulnerabilities in dependencies. Both are backed by the Go vulnerability database (https://vuln.go.dev) and complement each other.

• Imports-based scanning, enabled by the "vulncheck": "Imports" setting, reports vulnerabilities by scanning the set of packages imported in the workspace. This is fast, but may report more false positives.
• Integration of the golang.org/x/vuln/cmd/govulncheck command-line tool performs a more precise analysis based on-call graph reachability, with fewer false positives. Because it is slower to compute, it must be manually triggered by using "Run govulncheck to verify" code actions or the "codelenses.run_govulncheck" code lens on go.mod files.

vulncheck.mp4

Checking for vulnerabilities using VS Code Go v0.37.0 and Gopls v0.11.0

Additional checks for the loopclosure analyzer

The loopclosure analyzer, which reports problematic references from a nested function to a variable of an enclosing loop, has been improved to catch more cases. In particular, it now reports when subtests run in parallel with the loop, a mistake that often results in all but the final test case being skipped.

Configuration changes

• The "vulncheck" setting controls vulnerability analysis based on the Go vulnerability database. If set to "Imports", gopls will compute diagnostics related to vulnerabilities in dependencies, and will present them in go.mod files.
• The "codelenses.run_govulncheck" setting controls the presence of code lenses that run the govulncheck command, which takes longer but produces more accurate vulnerability reporting based on call-graph reachability.

Bug fixes

This version of gopls includes fixes to several bugs, notably:

• Unnecessary package reloading when changing branches (golang/go#57053).
• A couple of rare crashes (golang/go#55837 and golang/go#56450).
• A memory leak following file changes (golang/go#54816).

A full list of all issues fixed can be found in the gopls/v0.11.0 milestone.
To report a new problem, please file a new issue at https://go.dev/issues/new.

Thank you to our contributors

@Arsen6331, @SN9NV, @adonovan, @bcmills, @dle8, @findleyr, @hyangah, @pjweinbgo, @suzmue