style(compiler-sfc): tweak api and types export (#1976)

test(runtime-core): add tests for componentSlots (#1940)

perf(reactivity): avoid triggering Map.has twice on non-reactive keys (#1972)

perf(reactivity): add existing index or non-integer prop on Array should not trigger length dependency (#1969)

fix(runtime-core): properly call lifecycle hooks in chained mixins & extends (#1974)

fix #1973

fix(runtime-core): class and style should be properly normalized in cloneVNode (#1967)

fix #1964

docs(readme): update Vue Router status footer note (#1961)

build(deps-dev): bump lint-staged from 10.2.11 to 10.2.13 (#1968)

build(deps-dev): bump @typescript-eslint/parser from 3.9.1 to 3.10.1 (#1966)

release: v3.0.0-rc.8

fix(keep-alive): should remove wrapped version of injected keep alive hooks (#1959)

types(jsx): make HTMLAttributes and SVGAttributes extend Events (#1941)

fix(runtime-dom): avoid setting unchanged input value (#1937)

fix #1935 (fix v-model usage with HTML5 validation)

fix(types): relax ComponentPublicInstanceConstructor type for class components (#1943)

types(runtime-core): improve the extracted instance types (#1936)

build(deps): bump postcss-modules from 3.2.1 to 3.2.2 (#1948)

Bumps [postcss-modules](https://github.com/css-modules/postcss-modules) from 3.2.1 to 3.2.2.
- [Release notes](https://github.com/css-modules/postcss-modules/releases)
- [Changelog](https://github.com/css-modules/postcss-modules/blob/master/CHANGELOG.md)
- [Commits](https://github.com/css-modules/postcss-modules/compare/v3.2.1...v3.2.2)

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fix(runtime-core): fix data merge order for mixins/extends

fix #1953

test: improve expect.toHaveBeenWarned() message

chore: remove console.log [ci skip]

fix(runtime-core/scheduler): handle nested flushPostFlushCbs calls

fix #1947

fix(hmr): properly force hmr full component props update

fix #1942

fix(ssr): invoke directive created hook during hydration

feat(directives): introduce `created` custom directive hook and ensure
`v-model` event listener fire before template/props listeners

fix #1931

fix(reactivity): fix iOS 12 JSON.stringify error on reactive objects

- Use WeakMap for raw -> reactive/readonly storage. This is slightly
  more expensive than using a field on the taget object but avoids
  polluting the original.

- also fix Collection.forEach callback value

fix #1916

refactor(devtools): emit needs to send the instance in args

build(deps-dev): bump @microsoft/api-extractor from 7.9.8 to 7.9.10 (#1951)

build(deps-dev): bump rollup from 2.26.4 to 2.26.5 (#1950)

build(deps-dev): bump jest from 26.4.1 to 26.4.2 (#1949)

feat(devtools): catch events

fix(watch): traverse refs in deep watch (#1939)

ref #1900

feat(devtools): expose setupState target object

fix(devtools): unmountApp not behind compile flag

chore: rename createDevtoolsHook to createDevtoolsComponentHook

feat(runtime-core): support variadic children in `h` for simple JSX compat

ref: #1917

release: v3.0.0-rc.7

perf(reactivity): improve ref performance by using class-based implementation (#1900)

chore(runtime-core): use ReactiveFlags.SKIP in vnode for consistency (#1901)

fix(reactivity): unwrap non-index accessed refs on reactive arrays (#1859)

close #1846

build(deps): bump @babel/parser from 7.11.3 to 7.11.4 (#1923)

Bumps [@babel/parser](https://github.com/babel/babel/tree/HEAD/packages/babel-parser) from 7.11.3 to 7.11.4.
- [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/v7.11.4/packages/babel-parser)

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build(deps): bump postcss-modules from 3.2.0 to 3.2.1 (#1920)

Bumps [postcss-modules](https://github.com/css-modules/postcss-modules) from 3.2.0 to 3.2.1.
- [Release notes](https://github.com/css-modules/postcss-modules/releases)
- [Changelog](https://github.com/css-modules/postcss-modules/blob/master/CHANGELOG.md)
- [Commits](https://github.com/css-modules/postcss-modules/compare/v3.2.0...v3.2.1)

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chore: use '@vue/shared' instead of '@vue/shared/src' (#1915)

fix(runtime-core): disable block tracking when calling compiled slot function in tempalte expressions

fix #1745, fix #1918

build(deps-dev): bump jest from 26.4.0 to 26.4.1 (#1924)

build(deps-dev): bump @microsoft/api-extractor from 7.9.7 to 7.9.8 (#1922)

build(deps-dev): bump rollup from 2.26.3 to 2.26.4 (#1921)

build(deps): upgrade to TypeScript 4

refactor(compiler-core): simplify hoistStatic check for nodes without patchFlag

close #1912

test(runtime-core): add tests for the optimized mode (#1884)

test: use polling for more stable markdown e2e tests

close #1908

fix(teleport): only inherit el for non-patched nodes

fix #1903

fix(compiler-core): should attach key to single element child of `<template v-for>` (#1910)

fix(runtime-core): correctly track dynamic nodes in renderSlot (#1911)

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