# Deno v2.7.8 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v2.7.8
- **Released:** Mar 25, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v2.7.8/

## Executive Summary (TL;DR)
Deno v2.7.8. Source highlight: feat(core): implement NodeRuntime CDP domain and fix --inspect-brk blocking

## New Features
- feat(ext/crypto): implement P-521 sign, verify, and ECDH derive (#32602)
- feat(ext/napi): add node_api_create_object_with_named_properties (#32906)
- feat(ext/telemetry): add console exporter for OpenTelemetry (#32717)
- feat(ext/telemetry): copy relevant span attributes to HTTP metrics (#32720)
- feat: use lockfile from jsr package for global install (#32490)

## Improvements
- perf(ext/web): use simdutf for base64 encode/decode (#32743)
- perf: upgrade to jsonc-parser 0.32 (#32864)

## Bug Fixes
- feat(core): implement NodeRuntime CDP domain and fix --inspect-brk blocking
- fix(audit): respect package.json overrides in vulnerability checks (#32878)
- fix(cli): fix arrow keys in interactive picker on Windows (#32978)
- fix(cli): parse --frozen flag for deno update and deno outdated (#32975)
- fix(compile): skip Node-to-Deno arg translation in standalone binaries
- fix(ext/console): handle throwing Symbol.toStringTag getter gracefully