release: v3.0.0-rc.6

chore: comments

fix(runtime-core): fix beforeUpdate call timing to allow state mutation

fix #1899

fix(compiler-core): generate NEED_PATCH flag for element with vnode hooks

fix(types): handling PropType<Function> with default value (#1896)

fix #1891

test(reactivity): improve built-in Collection subclass test cases (#1885)

refactor(types): widen `Component` type to include consutructor types
returned from `defineComponent`

ref: https://github.com/vuejs/vue-router-next/pull/421
also close #1880

Previous `Component` type is now exported as `ConcreteComponent`.

This introduces a minor breaking change when calling `h(comp, { ... })`
will now fail if `comp` is a of generic `Component` type, since it does
not specify what props it expects.

types(runtime-core): make `FunctionalComponent` with emit string[] to be `Component` (#1879)

fix #1847

types(runtime-core): tweak the type of KeepAlive (#1871)

chore: fix typo for `babelParserDefautPlugins` (#1897)

chore: remove unused type `VNodeDirectiveData` (#1893)

types(reactivity): improve typings for `shallowRef` (#1780)

feat(reactivity): return array when calling `toRefs` on array (#1768)

close #1764

chore: remove deprecated `<content>` tag (#1647)

https://developer.mozilla.org/en-US/docs/Web/HTML/Element/content

chore(runtime-dom): remove deprecated tags from jsx typing (#1627)

types(runtime-core): argument for props validator

Unfortunately it requires explicit annotation for now

types(runtime-core): make `this` void in prop validators and prop default factories (#1867)

types(runtime-core): improve PropType inference precision (#1863)

refactor(runtime-core): add @internal for instance.proxy (#1849)

build(deps-dev): bump @typescript-eslint/parser from 3.9.0 to 3.9.1 (#1887)

feat(runtime-core): pass current props to prop default value functions

close #1886

fix(reactivity): accept subtypes of collections (#1864)

fix(runtime-core): fix Object props validation for objects with custom toStringTag

fix #1872

docs: add indefinite article to bug fix sentence (#1878)

feat(compiler-core): add `comments` parser option (#1858)

build(deps-dev): bump @types/jest from 26.0.9 to 26.0.10 (#1876)

build(deps-dev): bump eslint from 7.6.0 to 7.7.0 (#1875)

build(deps-dev): bump @microsoft/api-extractor from 7.9.4 to 7.9.5 (#1874)

build(deps-dev): bump rollup from 2.25.0 to 2.26.3 (#1873)

fix(compiler-sfc): custom blocks sourcemap (#1812)

test(types): add prop validator test (#1769)

Due to the limitation of TS, prop validator must be fully annotated
refer to https://github.com/microsoft/TypeScript/issues/38623

chore: remove unecessary 'export' (#1785)

types(reactivity): add dts for proxyRefs & improve typings (#1786)

types(runtime-core): make `this` void in emits validator (#1842)

test(watch): add same value skipping trigger test

fix(teleport): always inherit root DOM nodes on patch (#1836)

fix #1813

chore: bump markdown e2e test wait period

build(deps-dev): bump jest from 26.3.0 to 26.4.0 (#1845)

Bumps [jest](https://github.com/facebook/jest) from 26.3.0 to 26.4.0.
- [Release notes](https://github.com/facebook/jest/releases)
- [Changelog](https://github.com/facebook/jest/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/jest/compare/v26.3.0...v26.4.0)

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build(deps-dev): bump @typescript-eslint/parser from 3.8.0 to 3.9.0 (#1831)

Bumps [@typescript-eslint/parser](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/parser) from 3.8.0 to 3.9.0.
- [Release notes](https://github.com/typescript-eslint/typescript-eslint/releases)
- [Changelog](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/parser/CHANGELOG.md)
- [Commits](https://github.com/typescript-eslint/typescript-eslint/commits/v3.9.0/packages/parser)

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build(deps): bump @babel/parser from 7.10.5 to 7.11.3 (#1820)

Bumps [@babel/parser](https://github.com/babel/babel/tree/HEAD/packages/babel-parser) from 7.10.5 to 7.11.3.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.11.3/packages/babel-parser)

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build(deps): bump @babel/types from 7.10.5 to 7.11.0 (#1749)

Bumps [@babel/types](https://github.com/babel/babel/tree/HEAD/packages/babel-types) from 7.10.5 to 7.11.0.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.11.0/packages/babel-types)

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chore: typos (#1670)

chore: use `value` instead of `n.value` (#1770)

chore: remove unnecessary wrap

fix(runtime-core/scheduler): sort postFlushCbs to ensure refs are set before lifecycle hooks (#1854)

fix #1852

build(deps-dev): bump rollup from 2.23.1 to 2.25.0 (#1856)

build(deps-dev): bump lodash from 4.17.19 to 4.17.20 (#1855)

fix(reactivity): effect should still check sync self-trigger

fix(runtime-core/scheduler): allow component render functions to trigger itself

fix #1801

fix(runtime-core): should correctly call `beforeEnter` inside `Suspense` (#1805)

fix #1795

fix(runtime-core): separate null vs. non-null ref value updates (#1835)

fix #1789, fix #1834

fix(codeframe): Added Math.max to prevent RangeError (#1807)

fix #1806

fix(types/jsx): update innerHTML property in jsx typing (#1814)

build(deps-dev): bump @microsoft/api-extractor from 7.9.2 to 7.9.4 (#1839)

build(deps-dev): bump conventional-changelog-cli from 2.0.34 to 2.1.0 (#1838)

build(deps-dev): bump ts-jest from 26.1.4 to 26.2.0 (#1833)

build(deps-dev): bump jest from 26.2.2 to 26.3.0 (#1832)

build(deps-dev): bump rollup from 2.23.0 to 2.23.1 (#1821)

build(deps-dev): bump rollup-plugin-typescript2 from 0.27.1 to 0.27.2 (#1819)

refactor(reactivity): readonly collections should not track

fix(reactivity): readonly+reactive collection should also expose readonly+reactive values

fix #1772

fix(transition): transition should accept multiple handlers on same event

fix #1746

fix(runtime-core): avoid manual slot invocation in template expressions interfering with block tracking

fix #1745

fix(keep-alive): fix activated hook invocation on nested components (#1743)

fix #1742

fix(runtime-dom): patch `form` as an attribute (#1788)

Close #1787

fix(reactivity): use isExtensible instead of isFrozen (#1753)

close #1784

refactor(runtime-core/scheduler): dedicated preFlush queue

properly fix #1763, #1777, #1781

chore: remove debugger

fix(watch): exhaust pre-flush watchers + avoid duplicate render by pre-flush watchers

close #1777

fix(watch): allow handler to be a string (#1775)

fix #1774

dx(compiler-core): warn on `<template v-for>` key misplacement

Note: the behavior is different from Vue 2. `<template v-for>` are compiled
into an array of Fragment vnodes so the key should be placed the `<template>`
for v-for to use it for diffing.

fix(compiler-core): v-if key error should only be checking same key on different branches

build(deps-dev): bump @typescript-eslint/parser from 3.7.1 to 3.8.0 (#1776)

chore: fix tests

chore: unset removed invokers

fix(runtime-dom): fix v-on same computed handler on multiple elements

fix #1747

fix(runtime-core/scheduler): prevent duplicate queue (#1767)

chore(compiler-core): improve X_V_IF_KEY error message (#1757)

fix(runtime-dom): style binding multi value support

fix #1759

fix(runtome-core): do not cache property access in beforeCreate hook

fix #1756

fix(watch): pre-flush watcher watching props should trigger before component update

fix #1763

build(deps-dev): bump eslint from 7.5.0 to 7.6.0 (#1765)

build(deps-dev): bump @types/jest from 26.0.7 to 26.0.8 (#1750)

build(deps-dev): bump jest from 26.1.0 to 26.2.2 (#1748)

fix(watch): should trigger watcher callback on triggerRef when watching ref source

fix #1736

fix(runtime-core/scheduler): only allow watch callbacks to be self-triggering

fix #1740

Previous fix for #1727 caused `watchEffect` to also recursively trigger
itself on reactive array mutations which implicitly registers array
`.length` as dependencies and mutates it at the same time.

This fix limits recursive trigger behavior to only `watch()` callbacks
since code inside the callback do not register dependencies and
mutations are always explicitly intended.

build(deps): bump csstype from 2.6.11 to 2.6.13 (#1737)

Bumps [csstype](https://github.com/frenic/csstype) from 2.6.11 to 2.6.13.
- [Release notes](https://github.com/frenic/csstype/releases)
- [Commits](https://github.com/frenic/csstype/compare/v2.6.11...v2.6.13)

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build(deps): [security] bump elliptic from 6.5.2 to 6.5.3 (#1735)

Bumps [elliptic](https://github.com/indutny/elliptic) from 6.5.2 to 6.5.3. **This update includes a security fix.**
- [Release notes](https://github.com/indutny/elliptic/releases)
- [Commits](https://github.com/indutny/elliptic/compare/v6.5.2...v6.5.3)

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chore: update cli status [ci skip]

fix(runtime-core): check if the key is string on undefined property warning (#1731)

release: v3.0.0-rc.5

feat(sfc): support resolving template components from `<script setup>` exports

feat(reactivity): `proxyRefs` method and `ShallowUnwrapRefs` type (#1682)

* feat(reactivity): `proxyRefs` method and `ShallowUnwrapRefs` type

BREAKING CHANGE: template auto ref unwrapping are now applied shallowly,
i.e. only at the root level. See https://github.com/vuejs/vue-next/pull/1682 for
more details.

fix(hmr): should update el for `HYDRATE_EVENTS` patchFlags node (#1707)

fix https://github.com/vitejs/vite/issues/613

test(types): test computed get/set type inference (#1709)

test(transition): add invalid durations test case (#1702)

test(types): test dts for Options API method return type inference (#1708)

fix(style-vars): fix css vars on component with suspense as root (#1718)

refactor(compiler-core): emit error on v-if key usage

fix(runtime-core): dev root resolution should differentiate user comments vs v-if comments

fix #1704