Changes

• feat: Deno.fsEvents() (#3452)
• feat: Support UDP sockets (#3946)
• feat: Deno.setRaw(rid, mode) to turn on/off raw mode (#3958)
• feat: Add Deno.formatDiagnostics (#4032)
• feat: Support TypeScript eval through deno eval -T flag (#4141)
• feat: Support types compiler option in compiler APIs (#4155)
• feat: add std/examples/chat (#4022, #4109, #4091)
• feat: support brotli compression for fetch API (#4082)
• feat: reverse URL lookup for cache (#4175)
• feat(std/node): add improve os module (#4064, #4075, #4065)
• feat(std/node): add os Symbol.toPrimitive methods (#4073)
• fix(fetch): proper error for unsupported protocol (#4085)
• fix(std/examples): add tests for examples (#4094)
• fix(std/http): Consume unread body before reading next request (#3990)
• fix(std/ws): createSecKey logic (#4063)
• fix(std/ws): provide default close code for ws.close() (#4172)
• fix(std/ws): sock shouldn't throw eof error when failed to read frame (#4083)
• fix: Bundles can be sync or async based on top level await (#4124)
• fix: Move WebAsssembly namespace to shared_globals (#4084)
• fix: Resolve makeTemp paths from CWD (#4104)
• fix: Return non-zero exit code on malformed stdin fmt (#4163)
• fix: add window.self read-only property (#4131)
• fix: fetch in workers (#4054)
• fix: fetch_cached_remote_source support redirect URL without base (#4099)
• fix: issues with JavaScript importing JavaScript. (#4120)
• fix: rewrite normalize_path (#4143)
• refactor(std/http): move io functions to http/io.ts (#4126)
• refactor: Deno.errors (#3936, #4058, #4113, #4093)
• upgrade: TypeScript 3.8 (#4100)
• upgrade: dprint 0.7.0 (#4130)
• upgrade: rusty_v8 0.3.4 (#4179)

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