CLI gains watch mode and new install defaults

deno check now supports --watch (67b4248)

deno check can now rerun automatically when files in the dependency graph change, bringing parity with the existing watch behavior in other commands. This removes the need for external file-watching wrappers and makes the type-check loop tighter and more ergonomic.

Global installs now default bare package names to npm (663d8a0)

deno install -g now treats unprefixed package names like deno add and local deno install do, auto-resolving them as npm: instead of erroring on a missing prefix. The change also validates all entries up front so a later parse error no longer leaves earlier global installs partially applied.

deno audit fix is now accepted as an alias (0b6cd36)

The audit subcommand now accepts a positional fix token and maps it to the existing --fix behavior, matching the muscle memory users bring from tools like npm audit fix. Invalid positionals still fail, so the new shorthand stays narrow and explicit.

Node ServerResponse.end(string) got a direct fast path (3e3430b)

The Node HTTP polyfill now bypasses part of the normal write path for safe string վերջ-ending responses, writing the header and body directly when a long list of invariants is satisfied. That should reduce overhead on a common hot path without changing behavior for chunked, HEAD/no-body, trailer, or strict-length cases.

TypeScript libs now expose Math.sumPrecise and Intl.Locale.variants (f1a7e4e)

Deno’s bundled typings now include two runtime APIs that were already available through V8 but previously caused deno check errors. This closes the gap between runtime and types for users relying on those newer platform features.

Bitmap image handling is fixed for wide buffers (99babcf)

createImageBitmap’s raw-buffer image construction now maps pixels using x/y coordinates instead of writing index,index, which fixes incorrect output for non-square bitmaps. The accompanying regression test covers a wide image case.

HTTP Brotli setup was consolidated (d3ec5aa)

Brotli compressor construction now shares constants and a helper across the HTTP response paths, reducing duplication while keeping the same quality and window settings. This is mostly a cleanup, but it also makes the compression configuration easier to maintain consistently.

Release builds now use panic=abort (1ebc47a)

Release Rust builds were switched to panic=abort, which should improve release binary size and simplify panic handling in optimized artifacts. This is a build/runtime tradeoff rather than a user-facing feature.

ICU data is no longer bundled twice (8266125)

The core crate no longer includes an ICU data copy that’s now already bundled by V8, removing an estimated ~11MB regression from the upgraded engine. This is a meaningful size fix for shipped binaries.

Other misc changes

• Dependency bump: twox-hash unpinned and updated to 2.1.2 (0eb9b05)