# Deno v2.7.12 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v2.7.12
- **Released:** Apr 09, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v2.7.12/

## Executive Summary (TL;DR)
Deno v2.7.12. Source highlight: feat(ext/node): add fs.SyncWriteStream (#33226)

## New Features
- feat(ext/node): add fs.SyncWriteStream (#33226)
- feat(ext/node): add llhttp-based HTTPParser with native cppgc binding (#33202)
- feat(ext/node): add native TLSWrap cppgc object (Rust core) (#33183)
- feat: native uv_pipe_t implementation with NativePipe and FdTable (#33165)

## Improvements
- perf(ext/node): use aws-lc-sys EVP API for chacha20-poly1305 (#33110)

## Bug Fixes
- fix(core): fix uv_pipe_open handle lifecycle to match libuv (#33225)
- fix(core): free UvLoopInner on uv_loop_t drop to prevent worker memory leak
- fix(core): handle WouldBlock in op_print for non-blocking stdio (#33221)
- fix(core): use c_char instead of i8 in uv_buf_t base cast (#33179)
- fix(ext/napi): use per-isolate Private key for napi_wrap/napi_unwrap (#33204)
- fix(ext/node): add dns.getDefaultResultOrder() API (#33197)