2.0.0 / 2024.10.09

Read announcement blog post at: https://deno.com/blog/v2.0

• BREAKING: DENO_FUTURE=1 by default, or welcome to Deno 2.0 (#25213)
• BREAKING: disallow new Deno.FsFile() (#25478)
• BREAKING: drop support for Deno.run.{clearEnv,gid,uid} (#25371)
• BREAKING: improve types for Deno.serve (#25369)
• BREAKING: improved error code accuracy (#25383)
• BREAKING: make supported compilerOptions an allow list (#25432)
• BREAKING: move width and height options to UnsafeWindowSurface
  constructor (#24200)
• BREAKING: remove --allow-hrtime (#25367)
• BREAKING: remove "emit" and "map" from deno info output (#25468)
• BREAKING: remove --allow-none flag (#25337)
• BREAKING: remove --jobs flag (#25336)
• BREAKING: remove --trace-ops (#25344)
• BREAKING: remove --ts flag (#25338)
• BREAKING: remove --unstable flag (#25522)
• BREAKING: remove deno bundle (#25339)
• BREAKING: remove deno vendor (#25343)
• BREAKING: remove Deno.[Tls]Listener.prototype.rid (#25556)
• BREAKING: remove Deno.{Conn,TlsConn,TcpConn,UnixConn}.prototype.rid (#25446)
• BREAKING: remove Deno.{Reader,Writer}[Sync] and Deno.Closer (#25524)
• BREAKING: remove Deno.Buffer (#25441)
• BREAKING: remove Deno.close() (#25347)
• BREAKING: remove Deno.ConnectTlsOptions.{certChain,certFile,privateKey} and
  Deno.ListenTlsOptions.certChain,certFile,keyFile} (#25525)
• BREAKING: remove Deno.copy() (#25345)
• BREAKING: remove Deno.customInspect (#25348)
• BREAKING: remove Deno.fdatasync[Sync]() (#25520)
• BREAKING: remove Deno.File (#25447)
• BREAKING: remove Deno.flock[Sync]() (#25350)
• BREAKING: remove Deno.FsFile.prototype.rid (#25499)
• BREAKING: remove Deno.fstat[Sync]() (#25351)
• BREAKING: remove Deno.FsWatcher.prototype.rid (#25444)
• BREAKING: remove Deno.fsync[Sync]() (#25448)
• BREAKING: remove Deno.ftruncate[Sync]() (#25412)
• BREAKING: remove Deno.funlock[Sync]() (#25442)
• BREAKING: remove Deno.futime[Sync]() (#25252)
• BREAKING: remove Deno.iter[Sync]() (#25346)
• BREAKING: remove Deno.read[Sync]() (#25409)
• BREAKING: remove Deno.readAll[Sync]() (#25386)
• BREAKING: remove Deno.seek[Sync]() (#25449)
• BREAKING: remove Deno.Seeker[Sync] (#25551)
• BREAKING: remove Deno.shutdown() (#25253)
• BREAKING: remove Deno.write[Sync]() (#25408)
• BREAKING: remove Deno.writeAll[Sync]() (#25407)
• BREAKING: remove deprecated UnsafeFnPointer constructor type with untyped
  Deno.PointerObject parameter (#25577)
• BREAKING: remove deprecated files config (#25535)
• BREAKING: Remove obsoleted Temporal APIs part 2 (#25505)
• BREAKING: remove remaining web types for compatibility (#25334)
• BREAKING: remove support for remote import maps in deno.json (#25836)
• BREAKING: rename "deps" remote cache folder to "remote" (#25969)
• BREAKING: soft-remove Deno.isatty() (#25410)
• BREAKING: soft-remove Deno.run() (#25403)
• BREAKING: soft-remove Deno.serveHttp() (#25451)
• BREAKING: undeprecate Deno.FsWatcher.prototype.return() (#25623)
• feat: add --allow-import flag (#25469)
• feat: Add a hint on error about 'Relative import path ... not prefixed with
  ...' (#25430)
• feat: Add better error messages for unstable APIs (#25519)
• feat: Add suggestion for packages using Node-API addons (#25975)
• feat: Allow importing .cjs files (#25426)
• feat: default to TS for file extension and support ext flag in more scenarios
  (#25472)
• feat: deprecate import assertions (#25281)
• feat: Don't warn about --allow-script when using esbuild (#25894)
• feat: hide several --unstable-* flags (#25378)
• feat: improve lockfile v4 to store normalized version constraints and be more
  terse (#25247)
• feat: improve warnings for deprecations and lifecycle script for npm packages
  (#25694)
• feat: include version number in all --json based outputs (#25335)
• feat: lockfile v4 by default (#25165)
• feat: make 'globalThis.location' a configurable property (#25812)
• feat: print Listening on messages on stderr instead of stdout (#25491)
• feat: remove --lock-write flag (#25214)
• feat: require jsr prefix for deno install and deno add (#25698)
• feat: require(esm) (#25501)
• feat: Show hints when using window global (#25805)
• feat: stabilize Deno.createHttpClient() (#25569)
• feat: suggest deno install --entrypoint instead of deno cache (#25228)
• feat: support DENO_LOG env var instead of RUST_LOG (#25356)
• feat: TypeScript 5.6 and npm:@types/node@22 (#25614)
• feat: Update no-window lint rule (#25486)
• feat: update warning message for --allow-run with no list (#25693)
• feat: warn when using --allow-run with no allow list (#25215)
• feat(add): Add npm packages to package.json if present (#25477)
• feat(add): strip package subpath when adding a package (#25419)
• feat(add/install): Flag to add dev dependency to package.json (#25495)
• feat(byonm): support deno run npm:<package> when package is not in
  package.json (#25981)
• feat(check): turn on noImplicitOverride (#25695)
• feat(check): turn on useUnknownInCatchVariables (#25465)
• feat(cli): evaluate code snippets in JSDoc and markdown (#25220)
• feat(cli): give access to process global everywhere (#25291)
• feat(cli): use NotCapable error for permission errors (#25431)
• feat(config): Node modules option for 2.0 (#25299)
• feat(ext/crypto): import and export p521 keys (#25789)
• feat(ext/crypto): X448 support (#26043)
• feat(ext/kv): configurable limit params (#25174)
• feat(ext/node): add abort helpers, process & streams fix (#25262)
• feat(ext/node): add rootCertificates to node:tls (#25707)
• feat(ext/node): buffer.transcode() (#25972)
• feat(ext/node): export 'promises' symbol from 'node:timers' (#25589)
• feat(ext/node): export missing constants from 'zlib' module (#25584)
• feat(ext/node): export missing symbols from domain, puncode, repl, tls
  (#25585)
• feat(ext/node): export more symbols from streams and timers/promises (#25582)
• feat(ext/node): expose ES modules for _ modules (#25588)
• feat(flags): allow double commas to escape values in path based flags (#25453)
• feat(flags): support user provided args in repl subcommand (#25605)
• feat(fmt): better error on malfored HTML files (#25853)
• feat(fmt): stabilize CSS, HTML and YAML formatters (#25753)
• feat(fmt): support vto and njk extensions (#25831)
• feat(fmt): upgrade markup_fmt (#25768)
• feat(install): deno install with entrypoint (#25411)
• feat(install): warn repeatedly about not-run lifecycle scripts on explicit
  installs (#25878)
• feat(lint): add no-process-global lint rule (#25709)
• feat(lsp): add a message when someone runs 'deno lsp' manually (#26051)
• feat(lsp): auto-import types with 'import type' (#25662)
• feat(lsp): html/css/yaml file formatting (#25353)
• feat(lsp): quick fix for @deno-types="npm:@types/*" (#25954)
• feat(lsp): turn on useUnknownInCatchVariables (#25474)
• feat(lsp): unstable setting as list (#25552)
• feat(permissions): Deno.mainModule doesn't require permissions (#25667)
• feat(permissions): allow importing from cdn.jsdelivr.net by default (#26013)
• feat(serve): Support second parameter in deno serve (#25606)
• feat(tools/doc): display subitems in symbol overviews where applicable
  (#25885)
• feat(uninstall): alias to 'deno remove' if -g flag missing (#25461)
• feat(upgrade): better error message on failure (#25503)
• feat(upgrade): print info links for Deno 2 RC releases (#25225)
• feat(upgrade): support LTS release channel (#25123)
• fix: add link to env var docs (#25557)
• fix: add suggestion how to fix importing CJS module (#21764)
• fix: add test ensuring als works across dynamic import (#25593)
• fix: better error for Deno.UnsafeWindowSurface, correct HttpClient name,
  cleanup unused code (#25833)
• fix: cjs resolution cases (#25739)
• fix: consistent with deno_config and treat "experimentalDecorators" as
  deprecated (#25735)
• fix: delete old Deno 1.x headers file when loading cache (#25283)
• fix: do not panic running invalid file specifier (#25530)
• fix: don't include extensionless files in file collection for lint & fmt by
  default (#25721)
• fix: don't prompt when using Deno.permissions.request with --no-prompt
  (#25811)
• fix: eagerly error for specifier with empty version constraint (#25944)
• fix: enable Win32_Security feature in windows-sys (#26007)
• fix: error on unsupported compiler options (#25714)
• fix: error out if a valid flag is passed before a subcommand (#25830)
• fix: fix jupyter display function type (#25326)
• fix: Float16Array type (#25506)
• fix: handle showing warnings while the progress bar is shown (#25187)
• fix: Hide 'deno cache' from help output (#25960)
• fix: invalid ipv6 hostname on deno serve (#25482)
• fix: linux canonicalization checks (#24641)
• fix: lock down allow-run permissions more (#25370)
• fix: make some warnings more standard (#25324)
• fix: no cmd prefix in help output go links (#25459)
• fix: only enable byonm if workspace root has pkg json (#25379)
• fix: panic when require(esm) (#25769)
• fix: precompile preserve SVG camelCase attributes (#25945)
• fix: reland async context (#25140)
• fix: remove --allow-run warning when using deno without args or subcommand
  (#25684)
• fix: remove entrypoint hack for Deno 2.0 (#25332)
• fix: remove recently added deno.json node_modules aliasing (#25542)
• fix: remove the typo in the help message (#25962)
• fix: removed unstable-htttp from deno help (#25216)
• fix: replace npm install hint with deno install hint (#25244)
• fix: trim space around DENO_AUTH_TOKENS (#25147)
• fix: update deno_doc (#25290)
• fix: Update deno_npm to fix deno install with crossws (#25837)
• fix: update hint for deno add <package> (#25455)
• fix: update malva in deno to support astro css comments (#25553)
• fix: update nodeModulesDir config JSON schema (#25653)
• fix: update patchver to 0.2 (#25952)
• fix: update sui to 0.4 (#25942)
• fix: upgrade deno_ast 0.42 (#25313)
• fix: upgrade deno_core to 0.307.0 (#25287)
• fix(add/install): default to "latest" tag for npm packages in
  deno add npm:pkg (#25858)
• fix(bench): Fix table column alignments and NO_COLOR=1 (#25190)
• fix(BREAKING): make dns record types have consistent naming (#25357)
• fix(byonm): resolve npm deps of jsr deps (#25399)
• fix(check): ignore noImplicitOverrides in remote modules (#25854)
• fix(check): move is cjs check from resolving to loading (#25597)
• fix(check): properly surface dependency errors in types file of js file
  (#25860)
• fix(cli): deno task exit with status 0 (#25637)
• fix(cli): Default to auto with --node-modules-dir flag (#25772)
• fix(cli): handle edge cases around exports in doc tests and default export
  (#25720)
• fix(cli): Map error kind to PermissionDenied when symlinking fails due to
  permissions (#25398)
• fix(cli): Only set allow net flag for deno serve if not already allowed all
  (#25743)
• fix(cli): Warn on not-run lifecycle scripts with global cache (#25786)
• fix(cli/tools): correct deno init --serve template behavior (#25318)
• fix(compile): support 'deno compile' in RC and LTS releases (#25875)
• fix(config): validate export names (#25436)
• fix(coverage): ignore urls from doc testing (#25736)
• fix(doc): surface graph errors as warnings (#25888)
• fix(dts): stabilize fetch declaration for use with Deno.HttpClient
  (#25683)
• fix(ext/console): more precision in console.time (#25723)
• fix(ext/console): prevent duplicate error printing when the cause is assigned
  (#25327)
• fix(ext/crypto): ensure EC public keys are exported uncompressed (#25766)
• fix(ext/crypto): fix identity test for x25519 derive bits (#26011)
• fix(ext/crypto): reject empty usages in SubtleCrypto#importKey (#25759)
• fix(ext/crypto): support md4 digest algorithm (#25656)
• fix(ext/crypto): throw DataError for invalid EC key import (#25181)
• fix(ext/fetch): fix lowercase http_proxy classified as https (#25686)
• fix(ext/fetch): percent decode userinfo when parsing proxies (#25229)
• fix(ext/http): do not set localhost to hostname unnecessarily (#24777)
• fix(ext/http): gracefully handle Response.error responses (#25712)
• fix(ext/node): add FileHandle#writeFile (#25555)
• fix(ext/node): add vm.constants (#25630)
• fix(ext/node): Add missing node:path exports (#25567)
• fix(ext/node): Add missing node:fs and node:constants exports (#25568)
• fix(ext/node): add stubs for node:trace_events (#25628)
• fix(ext/node): attach console stream properties (#25617)
• fix(ext/node): avoid showing UNKNOWN error from TCP handle (#25550)
• fix(ext/node): close upgraded socket when the underlying http connection is
  closed (#25387)
• fix(ext/node): delay accept() call 2 ticks in net.Server#listen (#25481)
• fix(ext/node): don't throw error for unsupported signal binding on windows
  (#25699)
• fix(ext/node): emit online event after worker thread is initialized (#25243)
• fix(ext/node): export process.allowedNodeEnvironmentFlags (#25629)
• fix(ext/node): export JWK public key (#25239)
• fix(ext/node): export request and response clases from http2 module (#25592)
• fix(ext/node): fix Cipheriv#update(string, undefined) (#25571)
• fix(ext/node): fix Decipheriv when autoPadding disabled (#25598)
• fix(ext/node): fix process.stdin.pause() (#25864)
• fix(ext/node): Fix vm sandbox object panic (#24985)
• fix(ext/node): http2session ready state (#25143)
• fix(ext/node): Implement detached option in child_process (#25218)
• fix(ext/node): import EC JWK keys (#25266)
• fix(ext/node): import JWK octet key pairs (#25180)
• fix(ext/node): import RSA JWK keys (#25267)
• fix(ext/node): register node:wasi built-in (#25134)
• fix(ext/node): remove unimplemented promiseHook stubs (#25979)
• fix(ext/node): report freemem() on Linux in bytes (#25511)
• fix(ext/node): Rewrite node:v8 serialize/deserialize (#25439)
• fix(ext/node): session close during stream setup (#25170)
• fix(ext/node): Stream should be instance of EventEmitter (#25527)
• fix(ext/node): stub inspector/promises (#25635)
• fix(ext/node): stub process.cpuUsage() (#25462)
• fix(ext/node): stub cpu_info() for OpenBSD (#25807)
• fix(ext/node): support x509 certificates in createPublicKey (#25731)
• fix(ext/node): throw when loading cpu-features module (#25257)
• fix(ext/node): update aead-gcm-stream to 0.3 (#25261)
• fix(ext/node): use primordials in ext/node/polyfills/console.ts (#25572)
• fix(ext/node): use primordials in ext/node/polyfills/wasi.ts (#25608)
• fix(ext/node): validate input lengths in Cipheriv and Decipheriv (#25570)
• fix(ext/web): don't ignore capture in EventTarget.removeEventListener (#25788)
• fix(ext/webgpu): allow to build on unsupported platforms (#25202)
• fix(ext/webgpu): sync category comment (#25580)
• fix(ext/webstorage): make getOwnPropertyDescriptor with symbol return
  undefined (#13348)
• fix(flags): --allow-all should conflict with lower permissions (#25909)
• fix(flags): don't treat empty run command as task subcommand (#25708)
• fix(flags): move some content from docs.deno.com into help output (#25951)
• fix(flags): properly error out for urls (#25770)
• fix(flags): require global flag for permission flags in install subcommand
  (#25391)
• fix(fmt): --check was broken for CSS, YAML and HTML (#25848)
• fix(fmt): fix incorrect quotes in components (#25249)
• fix(fmt): fix tabs in YAML (#25536)
• fix(fmt/markdown): fix regression with multi-line footnotes and inline math
  (#25222)
• fix(info): error instead of panic for npm specifiers when using byonm (#25947)
• fix(info): move "version" field to top of json output (#25890)
• fix(inspector): Fix panic when re-entering runtime ops (#25537)
• fix(install): compare versions directly to decide whether to create a child
  node_modules dir for a workspace member (#26001)
• fix(install): Make sure target node_modules exists when symlinking (#25494)
• fix(install): recommend using deno install -g when using a single http url
  (#25388)
• fix(install): store tags associated with package in node_modules dir (#26000)
• fix(install): surface package.json dependency errors (#26023)
• fix(install): Use relative symlinks in deno install (#25164)
• fix(installl): make bin entries executable even if not put in
  node_modules/.bin (#25873)
• fix(jupyter): allow unstable flags (#25483)
• fix(lint): correctly handle old jsx in linter (#25902)
• fix(lint): support linting jsr pkg without version field (#25230)
• fix(lockfile): use loose deserialization for version constraints (#25660)
• fix(lsp): encode url parts before parsing as uri (#25509)
• fix(lsp): exclude missing import quick fixes with bad resolutions (#26025)
• fix(lsp): panic on url_to_uri() (#25238)
• fix(lsp): properly resolve jsxImportSource for caching (#25688)
• fix(lsp): update diagnostics on npm install (#25352)
• fix(napi): Don't run microtasks in napi_resolve_deferred (#25246)
• fix(napi): Fix worker threads importing already-loaded NAPI addon (#25245)
• fix(no-slow-types): better override handling (#25989)
• fix(node): Don't error out if we fail to statically analyze CJS re-export
  (#25748)
• fix(node): fix worker_threads issues blocking Angular support (#26024)
• fix(node): implement libuv APIs needed to support npm:sqlite3 (#25893)
• fix(node): Include "node" condition during CJS re-export analysis (#25785)
• fix(node): Pass NPM_PROCESS_STATE to subprocesses via temp file instead of env
  var (#25896)
• fix(node/byonm): do not accidentally resolve bare node built-ins (#25543)
• fix(node/cluster): improve stubs to make log4js work (#25146)
• fix(npm): better error handling for remote npm deps (#25670)
• fix(npm): root package has peer dependency on itself (#26022)
• fix(permissions): disallow any LD_ or DYLD_ prefixed env var without full
  --allow-run permissions (#25271)
• fix(permissions): disallow launching subprocess with LD_PRELOAD env var
  without full run permissions (#25221)
• fix(publish): ensure provenance is spec compliant (#25200)
• fix(regression): do not expose resolved path in Deno.Command permission denied
  error (#25434)
• fix(runtime): don't error child.output() on consumed stream (#25657)
• fix(runtime): use more null proto objects again (#25040)
• fix(runtime/web_worker): populate SnapshotOptions for WebWorker when
  instantiated without snapshot (#25280)
• fix(task): correct name for scoped npm package binaries (#25390)
• fix(task): support tasks with colons in name in deno run (#25233)
• fix(task): use current executable for deno even when not named deno (#26019)
• fix(types): simplify mtls related types (#25658)
• fix(upgrade): more informative information on invalid version (#25319)
• fix(windows): Deno.Command - align binary resolution with linux and mac
  (#25429)
• fix(workspace): handle when config has members when specified via --config
  (#25988)
• perf: fast path for cached dyn imports (#25636)
• perf: Use -O3 for sui in release builds (#26010)
• perf(cache): single cache file for remote modules (#24983)
• perf(cache): single cache file for typescript emit (#24994)
• perf(ext/fetch): improve decompression throughput by upgrading tower_http
  (#25806)
• perf(ext/node): reduce some allocations in require (#25197)
• perf(ext/web): optimize performance.measure() (#25774)