# Deno v1.6.3 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.6.3
- **Released:** Dec 30, 2020
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.6.3/

## Executive Summary (TL;DR)
Deno v1.6.3. Source highlight: feat(lsp): Implement textDocument/rename (#8910)

## New Features
- feat(lsp): Implement textDocument/rename (#8910)
- feat(lsp): Add cache command (#8911)
- feat(unstable): collect coverage from the run command (#8893)
- feat(std/node): adds fs.mkdtemp & fs.mkdtempSync (#8604)

## Bug Fixes
- fix: fetch bad URL will not panic (#8884)
- fix: info does not panic on missing modules (#8924)
- fix(core): Fix incorrect index in Promise.all error reporting (#8913)
- fix(lsp): handle ts debug errors better (#8914)
- fix(lsp): provide diagnostics for unresolved modules (#8872)
- fix(std/http): Don't expose ServerRequest::done as Deferred (#8919)