# Releases

Binary releases can be downloaded manually at
https://github.com/denoland/deno/releases

We also have a one-line install commands at
https://github.com/denoland/deno_install

### v0.2.8 / 2019.01.19

- Add --prefetch flag for deps prefetch without running (#1475)
- Kill all pending accepts when TCP listener is closed (#1517)
- Add globalThis definition to runtime (#1534)
- mkdir should not be recursive by default (#1530)
- Avoid crashes on ES module resolution when module not found (#1546)

### v0.2.7 / 2019.01.14

- Use rust 2018 edition
- Native ES modules (#1460 #1492 #1512 #1514)
- Properly parse network addresses (#1515)
- Added rid to Conn interface (#1513)
- Prevent segfault when eval throws an error (#1411)
- Add --allow-all flag (#1482)

### v0.2.6 / 2019.01.06

- Implement console.groupCollapsed (#1452)
- Add deno.pid (#1464)
- Add Event web API (#1059)
- Support more fetch init body types (#1449)

### v0.2.5 / 2018.12.31

- Runtime argument checks (#1427 #1415)
- Lazily create .mime files only with mismatch/no extension (#1417)
- Fix FormData.name (#1412)
- Print string with NULL '\0' (#1428)

### v0.2.4 / 2018.12.23

- "cargo build" support (#1369 #1296 #1377 #1379)
- Remove support for extensionless import (#1396)
- Upgrade V8 to 7.2.502.16 (#1403)
- make stdout unbuffered (#1355)
- Implement `Body.formData` for fetch (#1393)
- Improve handling of non-coercable objects in assertEqual (#1385)
- Avoid fetch segfault on empty Uri (#1394)
- Expose deno.inspect (#1378)
- Add illegal header name and value guards (#1375)
- Fix URLSearchParams set() and constructor() (#1368)
- Remove prebuilt v8 support (#1369)
- Enable jumbo build in release. (#1362)
- Add URL implementation (#1359)
- Add console.count and console.time (#1358)
- runtime arg check `URLSearchParams` (#1390)

### v0.2.3 / 2018.12.14

- console.assert should not throw error (#1335)
- Support more modes in deno.open (#1282, #1336)
- Simplify code fetch logic (#1322)
- readDir entry mode (#1326)
- Use stderr for exceptions (#1303)
- console.log formatting improvements (#1327, #1299)
- Expose TooLarge error code for buffers (#1298)

### v0.2.2 / 2018.12.07

- Don't crash when .mime file not exist in cache (#1291)
- Process source maps in Rust instead of JS (#1280)
- Use alternate TextEncoder/TextDecoder implementation (#1281)
- Upgrade flatbuffers to 80d148
- Fix memory leaks (#1265, #1275)

### v0.2.1 / 2018.11.30

- Allow async functions in REPL (#1233)
- Handle Location header relative URI (#1240)
- Add deno.readAll() (#1234)
- Add Process.output (#1235)
- Upgrade to TypeScript 3.2.1
- Upgrade crates: tokio 0.1.13, hyper 0.12.16, ring 0.13.5

### v0.2.0 / 2018.11.27 / Mildly usable

[An intro talk was recorded.](https://www.youtube.com/watch?v=FlTG0UXRAkE)

Stability and usability improvements. `fetch()` is 90% functional now. Basic
REPL support was added. Shebang support was added. Command-line argument parsing
was improved. A forwarding service `https://deno.land/x` was set up for Deno
code. Example code has been posted to
[deno.land/x/examples](https://github.com/denoland/deno_examples) and
[deno.land/x/net](https://github.com/denoland/net).

The resources table was added to abstract various types of I/O streams and other
allocated state. A resource is an integer identifier which maps to some Rust
object. It can be used with various ops, particularly read and write.

Changes since v0.1.12:

- First pass at running subprocesses (#1156)
- Improve flag parsing (#1200)
- Improve fetch() (#1194 #1188 #1102)
- Support shebang (#1197)

### v0.1.12 / 2018.11.12

- Update to TypeScript 3.1.6 (#1177)
- Fixes Headers type not available. (#1175)
- Reader/Writer to use Uint8Array not ArrayBufferView (#1171)
- Fixes importing modules starting with 'http'. (#1167)
- build: Use target/ instead of out/ (#1153)
- Support repl multiline input (#1165)

### v0.1.11 / 2018.11.05

- Performance and stability improvements on all platforms.
- Add repl (#998)
- Add deno.Buffer (#1121)
- Support cargo check (#1128)
- Upgrade Rust crates and Flatbuffers. (#1145, #1127)
- Add helper to turn deno.Reader into async iterator (#1130)
- Add ability to load JSON as modules (#1065)
- Add deno.resources() (#1119)
- Add application/x-typescript mime type support (#1111)

### v0.1.10 / 2018.10.27

- Add URLSearchParams (#1049)
- Implement clone for FetchResponse (#1054)
- Use content-type headers when importing from URLs. (#1020)
- Use checkJs option, JavaScript will be type checked and users can supply JSDoc
  type annotations that will be enforced by Deno (#1068)
- Add separate http/https cache dirs to DENO_DIR (#971)
- Support https in fetch. (#1100)
- Add chmod/chmodSync on unix (#1088)
- Remove broken features: --deps and trace() (#1103)
- Ergonomics: Prompt TTY for permission escalation (#1081)

### v0.1.9 / 2018.10.20

- Performance and stability improvements on all platforms.
- Add cwd() and chdir() #907
- Specify deno_dir location with env var DENO_DIR #970
- Make fetch() header compliant with the current spec #1019
- Upgrade TypeScript to 3.1.3
- Upgrade V8 to 7.1.302.4

### v0.1.8 / 2018.10.12 / Connecting to Tokio / Fleshing out APIs

Most file system ops were implemented. Basic TCP networking is implemented.
Basic stdio streams exposed. And many random OS facilities were exposed (e.g.
environmental variables)

Tokio was chosen as the backing event loop library. A careful mapping of JS
Promises onto Rust Futures was made, preserving error handling and the ability
to execute synchronously in the main thread.

Continuous benchmarks were added: https://denoland.github.io/deno/ Performance
issues are beginning to be addressed.

"deno --types" was added to reference runtime APIs.

Working towards https://github.com/denoland/deno/milestone/2 We expect v0.2 to
be released in last October or early November.

Changes since v0.1.7:

- Fix promise reject issue (#936)
- Add --types command line flag.
- Add metrics()
- Add redirect follow feature #934
- Fix clearTimer bug #942
- Improve error printing #935
- Expose I/O interfaces Closer, Seeker, ReaderCloser, WriteCloser, ReadSeeker,
  WriteSeeker, ReadWriteCloser, ReadWriteSeeker
- Fix silent death on double await #919
- Add Conn.closeRead() and Conn.closeWrite() #903

### v0.1.7 / 2018.10.04

- Improve fetch headers (#853)
- Add deno.truncate (#805)
- Add copyFile/copyFileSync (#863)
- Limit depth of output in console.log for nested objects, and add console.dir
  (#826)
- Guess extensions on extension not provided (#859)
- Renames: deno.platform -> deno.platform.os deno.arch -> deno.platform.arch
- Upgrade TS to 3.0.3
- Add readDirSync(), readDir()
- Add support for TCP servers and clients. (#884) Adds deno.listen(),
  deno.dial(), deno.Listener and deno.Conn.

### v0.1.6 / 2018.09.28

- Adds deno.stdin, deno.stdout, deno.stderr, deno.open(), deno.write(),
  deno.read(), deno.Reader, deno.Writer, deno.copy() #846
- Print 'Compiling' when compiling TS.
- Support zero-copy for writeFile() writeFileSync() #838
- Fixes eval error bug #837
- Make Deno multithreaded #782
- console.warn() goes to stderr #810
- Add deno.readlink()/readlinkSync() #797
- Add --recompile flag #801
- Use constructor.name to print out function type #664
- Rename deno.argv to deno.args
- Add deno.trace() #795
- Continuous benchmarks https://denoland.github.io/deno/

### v0.1.5 / 2018.09.21

- Add atob() btoa() #776
- Add deno.arch deno.platform #773
- Add deno.symlink() and deno.symlinkSync() #742
- Add deno.mkdir() and deno.mkdirSync() #746
- Add deno.makeTempDir() #740
- Improvements to FileInfo interface #765, #761
- Add fetch.blob()
- Upgrade V8 to 7.0.276.15
- Upgrade Rust crates

### v0.1.4 / 2018.09.12

- Support headers in fetch()
- Adds many async fs functions: deno.rename() deno.remove(), deno.removeAll(),
  deno.removeSync(), deno.removeAllSync(), deno.mkdir(), deno.stat(),
  deno.lstat() deno.readFile() and deno.writeFile().
- Add mode in FileInfo
- Access error codes via error.kind
- Check --allow-net permissions when using fetch()
- Add deno --deps for listing deps of a script.

### v0.1.3 / 2018.09.05 / Scale binding infrastructure

ETA v.0.2 October 2018 https://github.com/denoland/deno/milestone/2

We decided to use Tokio https://tokio.rs/ to provide asynchronous I/O, thread
pool execution, and as a base for high level support for various internet
protocols like HTTP. Tokio is strongly designed around the idea of Futures -
which map quite well onto JavaScript promises. We want to make it as easy as
possible to start a Tokio future from JavaScript and get a Promise for handling
it. We expect this to result in preliminary file system operations, fetch() for
http. Additionally we are working on CI, release, and benchmarking
infrastructure to scale development.

Changes since v0.1.2:

- Fixes module resolution error #645
- Better flag parsing
- lStatSync -> lstatSync
- Added deno.renameSync()
- Added deno.mkdirSync()
- Fix circular dependencies #653
- Added deno.env() and --allow-env

### v0.1.2 / 2018.08.30

- Added https import support.
- Added deno.makeTempDirSync().
- Added deno.lstatSync() and deno.statSync().

### v0.1.1 / 2018.08.27

### v0.1.0 / 2018.08.23 / Rust rewrite and V8 snapshot

Complete! https://github.com/denoland/deno/milestone/1

Go is a garbage collected language and we are worried that combining it with
V8's GC will lead to difficult contention problems down the road.

The V8Worker2 binding/concept is being ported to a new C++ library called
libdeno. libdeno will include the entire JS runtime as a V8 snapshot. It still
follows the message passing paradigm. Rust will be bound to this library to
implement the privileged part of deno. See deno2/README.md for more details.

V8 Snapshots allow deno to avoid recompiling the TypeScript compiler at startup.
This is already working.

When the rewrite is at feature parity with the Go prototype, we will release
binaries for people to try.

### v0.0.0 / 2018.05.14 - 2018.06.22 / Golang Prototype

https://github.com/denoland/deno/tree/golang

https://www.youtube.com/watch?v=M3BM9TB-8yA

https://tinyclouds.org/jsconf2018.pdf

### 2007-2017 / Prehistory

https://github.com/ry/v8worker

https://libuv.org/

https://tinyclouds.org/iocp-links.html

https://nodejs.org/

https://github.com/nodejs/http-parser

https://tinyclouds.org/libebb/