# Deno v1.40.0 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.40.0
- **Released:** Jan 25, 2024
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.40.0/

## Executive Summary (TL;DR)
Deno v1.40.0. Source highlight: feat(unstable): remove `Deno.cron()` overload (#22035)

## Breaking Changes & Deprecations
- - fix(BREAKING): remove dead `--prompt` flag (#22038)

## New Features
- feat(unstable): remove `Deno.cron()` overload (#22035)
- feat: improved diagnostics printing (#22049)
- feat(jupyter): don't require --unstable flag (#21963)
- feat(lockfile): track JSR and npm dependencies in config file (#22004)
- feat(lsp): include scope uri in "deno/didChangeDenoConfiguration" (#22002)
- feat(lsp): send "deno/didChangeDenoConfiguration" on init (#21965)

## Bug Fixes
- fix(BREAKING): remove dead `--prompt` flag (#22038)
- fix(ext/cron): automatically override unspecified values (#22042)
- fix(ext/node): fix no arg call of fs.promises.readFile (#22030)
- fix(info): return proper exit code on error (#21952)
- fix(lsp): improved npm specifier to import map entry mapping (#22016)
- fix(lsp): regression - formatting was broken on windows (#21972)