Changelog

denoland/deno · · 20 commits

Node compat gets big crypto and fs upgrades

Major Node compatibility work lands across crypto, DNS, readline, and CPU profiling, plus a few stability fixes.

bartlomieju dsherret littledivy

Node crypto support expands in several directions (bartlomiejud3e9c91, bartlomieju7cf4753, bartlomieju0596405, bartlomiejue0b1933, bartlomieju881f8c0, bartlomiejuddbdb6d, bartlomieju98ca450)

Deno’s Node crypto polyfill got a substantial compatibility boost: Diffie-Hellman and ECDH gained missing behaviors like key conversion, hybrid/compressed formats, proper key parsing/export, and bug fixes for public key derivation; HMAC now matches Node by allowing repeated digest() calls; RSA-PSS defaults to max salt length when signing; and SHAKE digests now emit the expected deprecation warning when outputLength is omitted. KeyObject/CryptoKey interop was also added, along with improved error codes for unsupported PQC key types.

node:dns compatibility is now much closer to Node (bartlomieju8a3ed27)

dns.lookup() and its promise variant now accept the order option and setDefaultResultOrder() supports ipv6first, matching newer Node behavior. Resolver server reporting also now falls back to system DNS servers instead of returning an empty list when no custom servers are configured.

Readline and console behavior are tightened up (bartlomiejue76e5fa, bartlomiejud77f623)

The readline polyfill gained several user-facing fixes, including proper tab-completion column formatting, more accurate historySize validation, and kill-ring/yank support. console.table() now keeps object values on one line, preventing wrapped cells from breaking table layout.

CPU profiling flags arrive on the CLI (littledivy22258fb)

New --cpu-prof options were added for generating CPU profiles, including directory, name, interval, and Markdown output controls. This is a notable runtime feature for performance analysis and debugging.

Other misc changes

  • Removed special handling for the deprecated multipleResolves process event (bartlomiejud7e449d)
  • Improved debuglog bootstrap defaults to avoid an early startup crash (bartlomiejud0c9173)
  • WebSocket response header parsing now skips non-ASCII protocol/extension values instead of panicking (bartlomieju0ee7539)
  • Telemetry code no longer panics on missing globals/isolates during teardown (bartlomiejuf123d84)
  • N-API bindings were refactored in-tree and unimplemented symbols were removed from napi_sys (bartlomiejuc123358, bartlomieju6048a0d)
  • Binaries in @deno/... npm packages are now installed as executable (dsherret0d1c07e)
  • node:fs polyfills were further consolidated internally (bartlomieju25f1c99)