# Deno v1.42.3 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.42.3
- **Released:** Apr 12, 2024
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.42.3/

## Executive Summary (TL;DR)
Deno v1.42.3. Source highlight: Revert "refactor(ext/net): extract TLS key and certificate from inter…

## Improvements
- perf(lsp): use a stub module in tsc for failed resolutions (#23313)

## Bug Fixes
- fix(inspector): don't panic if port is not free (#22745)
- fix(lsp): Denormalize specifiers before calling `$projectChanged` (#23322)
- fix(npm): local nodeModulesDir was sometimes resolving duplicates of same
- fix(publish): do not warn about excluded external modules in node_modules
- fix: upgrade deno_ast related crates (#23187)