refactor(reactivity): remove `keyIsSymbol` (#2262)

refactor(runtime-core): simplify deep watch traverse (#2212)

test(compiler-core): more test cases for baseParse (#2211)

build(deps): bump postcss from 7.0.34 to 7.0.35 (#2273)

Bumps [postcss](https://github.com/postcss/postcss) from 7.0.34 to 7.0.35.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/master/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/7.0.34...7.0.35)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

refactor(runtime-core): refactor watch typing (#2191)

fix(sfc/style-vars): should attach css vars while `subtree` changed (#2178)

* fix(cssVars): should attach css vars while `subtree` changed

fix #2177

* fix: fix test

chore: add magic number comment (#2198) [ci skip]

fix(reactivity): use resetTracking instead of enableTracking (#2174)

chore(test): test cases description mistake (#2167)

chore: heading for npm readme (#2158) [ci skip]

test(runtime-core): show warn when create with invalid type (#2128)

fix(compiler-core): fix v-if key injection with v-on object syntax (#2368)

fix #2366

feat: custom formatters

build(deps-dev): bump jest from 26.5.2 to 26.5.3 (#2365)

fix(teleport): proper children traversal when teleport is block root

fix #2324

build(deps-dev): bump eslint from 7.10.0 to 7.11.0 (#2351)

build(deps-dev): bump @types/node from 14.11.5 to 14.11.8 (#2346)

fix(teleport): should only force remove teleport when not disabled

fix #2323

fix(v-model): ensure initial value is set after other attributes

fix #2325

build(deps-dev): bump sass from 1.26.11 to 1.27.0 (#2334)

fix(v-model): avoid clearing IME compose state on updates (#2304)

fix #2302

fix(runtime-core): fix directive merging on component root

fix #2298

fix(runtime-core): fix provide function data access in extends/mixins

fix #2300

chore: add missing feature flag to jest config

fix(compiler-core): allow spaces between if-else branches (#2305)

fix #2299

fix(runtime-core/template-refs): do not reset refs object before updates

fix #2283

fix(runtime-core): error handling for created/beforeCreate hooks

fix #2268

fix(runtime-dom): v-model should support number modifier with select tag (#2308)

close #2252

build(deps-dev): bump @types/node from 14.11.2 to 14.11.5 (#2319)

build(deps-dev): bump @microsoft/api-extractor from 7.10.1 to 7.10.4 (#2320)

build(deps-dev): bump jest from 26.5.0 to 26.5.2 (#2318)

build(deps-dev): bump @typescript-eslint/parser from 4.3.0 to 4.4.0 (#2317)

test(compiler-core): add test case for v-on event case conversion

fix(runtime-core): use consistent camelCase event casing for render functions (#2278)

close #2249

fix(reactivity): should not trigger watch on computed ref when value is unchanged

fix #2231

fix(runtime-core): fix SSR memoery leak due to props normalization cache

fix #2225

The previous props/emits normlaization was caching normalized result per
app instance, but during SSR there is a new app instance created for
every request.

The fix now de-opts props/emits normlaization caching when there are
props/emits declared in global mixins - which is a very rare use case.

perf: do not enable hmr in non-browser envs

fix(runtime-core): ensure this context for $nextTick callback

fix #2282

fix(compiler-core): consistently remove comment nodes for pre tags in production

close #2217

fix(runtime-core): make errorCaptured return value handling consistent with Vue 2 (#2289)

fix #2267

fix(reactivity): should add allowRecurse to the effect (#2213)

So that the scheduler also respects effect's allowRecurse option.

fix #2200

fix(runtime-core): vnode.el is null in watcher after rerendering (#2295)

fix #2170

chore(readme): update eslint-plugin-vue status [ci skip]

chore: add github sponsors to funding.yml [ci skip]

fix(compiler-core): make v-once work with v-if/else-if/else (#2182)

Partial fix for #2035

build(deps-dev): bump jest from 26.4.2 to 26.5.0 (#2301)

build(deps-dev): bump @microsoft/api-extractor from 7.9.22 to 7.10.1 (#2285)

build(deps-dev): bump ts-jest from 26.4.0 to 26.4.1 (#2276)

build(deps-dev): bump @typescript-eslint/parser from 4.1.1 to 4.3.0 (#2275)

build(deps-dev): bump @types/puppeteer from 2.1.4 to 2.1.5 (#2274)

types: fix Typescript 4.1 compile error (#2219)

close #2218

build(deps-dev): bump eslint from 7.9.0 to 7.10.0 (#2257)

build(deps-dev): bump rollup-plugin-typescript2 from 0.27.2 to 0.27.3 (#2241)

build(deps-dev): bump rollup from 2.28.1 to 2.28.2 (#2229)

chore(compiler-core): fix typo in tests (#2209)

build(deps-dev): bump @types/puppeteer from 2.1.3 to 2.1.4 (#2206)

build(deps-dev): bump @microsoft/api-extractor from 7.9.19 to 7.9.22 (#2207)

build(deps-dev): bump @types/node from 14.11.1 to 14.11.2 (#2203)

fix(runtime-core): fix duplicated unmount traversal in optimized mode

fix #2169

fix(types): fix using tuple type as EmitsOptions (#2160)

fix #2159

fix(types): avoid DefineComponent defaulting to any

fix #2192

build(deps-dev): bump @microsoft/api-extractor from 7.9.18 to 7.9.19 (#2189)

build(deps-dev): bump @rollup/plugin-commonjs from 15.0.0 to 15.1.0 (#2188)

build(deps-dev): bump rollup from 2.27.1 to 2.28.1 (#2187)

build(deps-dev): bump ts-jest from 26.3.0 to 26.4.0 (#2186)

build(deps-dev): bump @microsoft/api-extractor from 7.9.15 to 7.9.18 (#2162)

build(deps-dev): bump typescript from 4.0.2 to 4.0.3 (#2161)

release: v3.0.0

chore: changelog edits [ci skip]

release: v3.0.0-rc.13

chore: add note for vetur [ci skip]

chore: update readme [ci skip]

build(deps): bump postcss from 7.0.32 to 7.0.34 (#2148)

Bumps [postcss](https://github.com/postcss/postcss) from 7.0.32 to 7.0.34.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/master/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/7.0.32...7.0.34)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

build(deps-dev): bump @types/node from 14.10.2 to 14.11.1 (#2151)

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 14.10.2 to 14.11.1.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

chore: fix changelog typo (#2152) [ci skip]

build(deps-dev): bump lint-staged from 10.3.0 to 10.4.0 (#2150)

build(deps-dev): bump rollup from 2.26.11 to 2.27.1 (#2149)

build(deps-dev): bump @types/jest from 26.0.13 to 26.0.14 (#2147)

build(deps-dev): bump sass from 1.26.10 to 1.26.11 (#2146)

fix(reactivity): avoid length mutating array methods causing infinite updates (#2138)

fix #2137

Co-authored-by: Evan You <yyx990803@gmail.com>

fix(hmr): make hmr working with class components (#2144)

fix(types): component instance inference without props (#2145)

feat(watch): support dot-delimited path in watch option

fix(suspense): should discard unmount effects of invalidated pending branch

refactor: watch APIs default to trigger pre-flush

BREAKING CHANGE: watch APIs now default to use `flush: 'pre'` instead of
`flush: 'post'`.

  - This change affects `watch`, `watchEffect`, the `watch` component
    option, and `this.$watch`.

  - As pointed out by @skirtles-code in
    [this comment](https://github.com/vuejs/vue-next/issues/1706#issuecomment-666258948),
    Vue 2's watch behavior is pre-flush, and the ecosystem has many uses
    of watch that assumes the pre-flush behavior. Defaulting to post-flush
    can result in unnecessary re-renders without the users being aware of
    it.

  - With this change, watchers need to specify `{ flush: 'post' }` via
    options to trigger callback after Vue render updates. Note that
    specifying `{ flush: 'post' }` will also defer `watchEffect`'s
    initial run to wait for the component's initial render.

feat(runtime-core): support using inject() inside props default functions

release: v3.0.0-rc.12

chore: do not log warned error during tests

fix(runtime-core): should still do full traverse of stable fragment children in dev + hmr

fix(runtime-core): ensure root stable fragments inherit elements for moving

fix #2134

fix(runtime-core/async-component): fix error component when there are no error handlers

fix #2129

workflow: temporarily disable no-unused-vars eslint rule for arguments

fix(reactivity): effect shoud only recursively self trigger with explicit options

fix #2125

fix(types/tsx): optional props from Mixin/Extends are treated as required (#2048)

chore: typos in suspense events (#2131)

Removes the mention of the recede event that has been replaced.

types(defineComponent): fix missing exported types (#2124)

feat(compiler-sfc): `additionalData` support for css preprocessors (#2126)

close https://github.com/vitejs/vite/issues/520

build(deps-dev): bump @types/node from 14.10.1 to 14.10.2 (#2122)

release: v3.0.0-rc.11

chore: bump deps