perf(compiler-sfc): only add character mapping if not whitespace

fix(compiler): warn against v-bind with empty attribute value

ref: https://github.com/vuejs/vue-next/issues/1128#issuecomment-624647434

build(deps-dev): bump @microsoft/api-extractor from 7.7.13 to 7.8.0

Bumps [@microsoft/api-extractor](https://github.com/microsoft/rushstack) from 7.7.13 to 7.8.0.
- [Release notes](https://github.com/microsoft/rushstack/releases)
- [Commits](https://github.com/microsoft/rushstack/compare/@microsoft/api-extractor_v7.7.13...@microsoft/api-extractor_v7.8.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

build(deps-dev): bump rollup from 2.8.0 to 2.8.2

Bumps [rollup](https://github.com/rollup/rollup) from 2.8.0 to 2.8.2.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.8.0...v2.8.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

feat(compiler-sfc): improve sfc source map generation

fix(reactivity): use correct thisArg for collection method callbacks (#1132)

build(deps): bump postcss from 7.0.28 to 7.0.29 (#1124)

Bumps [postcss](https://github.com/postcss/postcss) from 7.0.28 to 7.0.29.
- [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/7.0.28...7.0.29)

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

refactor: reuse parseStringStyle across compiler and runtime

fix(runtime-dom/style): normalize string when merging styles (#1127)

ci: add changelog link in releases (#1123)

chore: LegacyOptions doesn't need to be exported (#1134)

fix(compiler-sfc): should not transform external asset url with
includeAbsolute: true

fix(reactivity): fix __proto__ access on proxy objects (#1133)

build(deps-dev): bump rollup from 2.7.6 to 2.8.0

Bumps [rollup](https://github.com/rollup/rollup) from 2.7.6 to 2.8.0.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.7.6...v2.8.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

perf(compiler-sfc): improve asset url trasnform efficiency

feat(types): re-expose trasnformVNodeArgs

release: v3.0.0-beta.9

fix(transitionGroup): fix transition children resolving condition

feat(compiler-sfc): support transforming absolute asset urls

BREAKING CHANGE: `@vue/compiler-sfc`'s `transformAssetUrlsBase` option
has been removed. It is merged into `trasnformAssetUrls` which now also
accepts the format of

  ```ts
  {
    base?: string
    includeAbsolute?: string
    tags?: { [name: string]: string[] }
  }
  ```

fix(compiler): bail strigification on runtime constant expressions

release: v3.0.0-beta.8

fix(transitionGroup): inner children should skip comment node (#1105)

feat(shared): support Map and Set in toDisplayString

close #1067, close #1100

chore: ensure warn is dev only

refactor(types): use pure type symbol

chore: fix changelog.md typo (#1098) [ci skip]

Merge pull request #1117 from vuejs/dependabot/npm_and_yarn/postcss-7.0.28

build(deps): bump postcss from 7.0.27 to 7.0.28

feat(watch): support directly watching reactive object with deep default

Also warn invalid watch sources

close #1110

feat(types): re-expose resolve asset utitlies and registerRuntimeCompiler in type definitions

close #1109

fix(types/reactivity): fix ref type inference on nested reactive properties with .value

fix #1111

fix(reactivity): avoid polluting Object prototype

build(deps): bump postcss from 7.0.27 to 7.0.28

Bumps [postcss](https://github.com/postcss/postcss) from 7.0.27 to 7.0.28.
- [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/7.0.27...7.0.28)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

build(deps-dev): bump jest from 25.5.3 to 25.5.4

Bumps [jest](https://github.com/facebook/jest) from 25.5.3 to 25.5.4.
- [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/v25.5.3...v25.5.4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

chore: typo (#1113)

fix(reactivity): check own property for existing proxy of target

fix #1107

test: reactive proto

fix(hmr): handle cases where instances with same id having different definitions

chore: remove commented stale code [ci skip]

release: v3.0.0-beta.7

refactor(reactivity): use more efficient reactive checks

WeakSets and WeakMaps shows degrading performance as the amount of
observed objects increases. Using hidden keys result in better
performance especially when repeatedly creating large amounts of
reactive proxies.

This also makes it possible to more efficiently declare non-reactive
objects in userland.

feat(compiler-sfc): add transformAssetUrlsBase option

fix(warn): cast symbols to strings (#1103)

feat(types): re-expose `withDirectives` as public type

release: v3.0.0-beta.6

chore: code comment formatting (#1089) [ci skip]

fix(runtime-core): should catch dom prop set TypeErrors

based on #1051

fix(compiler-core): hoist pure annotations should apply to all nested calls

fix(compiler-core): hoisted vnode calls and scoped id calls should be marked pure

Otherwise they cannot be tree-shaken

fix(compiler-ssr): handle comments codegen + refactor ssr codegen transform

chore: remove unnecessary path in tsconfig.json

fix(runtime-core): should call Suspense fallback unmount hook (#1061)

fix #1059

fix(types): augment ref unwrap bail types in appropriate packages

Packages can now augment the ref unwrap bail types in their own `d.ts`.
Also updated the build script to auto concat any files in a package's
`types` directory to the final generated `d.ts`.

- `@vue/reactivity` should no longer require `libs: ["DOM"]` in tsconfig
- Properly bail on `VNode` and `ComponentPublicInstance` in runtime-core

fix(teleport): teleport should always be tracked as dynamic child for unmount

fix #1088

fix(runtime-core): cloned vnodes with extra props should de-opt

fix(runtime-core): fix slot fragment bail check

perf: instance public proxy should never be observed

fix(runtime-core): avoid infinite warning loop for isRef check on component public proxy

fix #1091

fix(ssr): fix escape and handling for raw Text, Comment and Static vnodes

feat(runtime-core): warn against user properties with reserved prefixes

fix(runtime-dom): should not coerce nullish values to empty strings for non-string dom props

fix #1049
close #1092, close #1093, close #1094

refactor(types): mark more internal APIs

chore: fix typos (#1090)

build(deps-dev): bump rollup from 2.7.5 to 2.7.6

Bumps [rollup](https://github.com/rollup/rollup) from 2.7.5 to 2.7.6.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.7.5...v2.7.6)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

build(deps-dev): bump jest from 25.5.2 to 25.5.3

Bumps [jest](https://github.com/facebook/jest) from 25.5.2 to 25.5.3.
- [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/v25.5.2...v25.5.3)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

types: fix internal exports from @vue/shared

refactor(types): mark internal API exports and exclude from d.ts

BREAKING CHANGE: Internal APIs are now excluded from type decalrations.

release: v3.0.0-beta.5

fix(transition-group): should collect raw children with Fragment (#1046)

fix #1045

feat(runtime-core): export queuePostFlushCb (#1078)

fix(keep-alive): do not invoke onVnodeBeforeUnmount if is KeepAlive component (#1079)

build: fix build script - extractorResult is not defined (#1068)

build(deps-dev): bump jest from 25.5.0 to 25.5.2

Bumps [jest](https://github.com/facebook/jest) from 25.5.0 to 25.5.2.
- [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/v25.5.0...v25.5.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

chore: remove stale _isVue checks

fix(hmr): support hmr for static nodes

build(deps): bump @babel/parser from 7.9.4 to 7.9.6 (#1087)

Bumps [@babel/parser](https://github.com/babel/babel) from 7.9.4 to 7.9.6.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/compare/v7.9.4...v7.9.6)

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): bump @babel/types from 7.9.5 to 7.9.6 (#1084)

Bumps [@babel/types](https://github.com/babel/babel) from 7.9.5 to 7.9.6.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/compare/v7.9.5...v7.9.6)

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 rollup from 2.7.3 to 2.7.5

Bumps [rollup](https://github.com/rollup/rollup) from 2.7.3 to 2.7.5.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.7.3...v2.7.5)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

fix(hydration): fix text mismatch warning

fix(compiler-ssr): avoid unnecessary withCtx import

fix(warning): always check for component instance presence when formatting traces

build(deps-dev): bump jest from 25.4.0 to 25.5.0

Bumps [jest](https://github.com/facebook/jest) from 25.4.0 to 25.5.0.
- [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/v25.4.0...v25.5.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

build(deps-dev): bump rollup from 2.7.2 to 2.7.3

Bumps [rollup](https://github.com/rollup/rollup) from 2.7.2 to 2.7.3.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.7.2...v2.7.3)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

types: use more consistent naming for apiWatch type exports

BREAKING CHANGE: Some watch API types are renamed.

    - `BaseWatchOptions` -> `WatchOptionsBase`
    - `StopHandle` -> `WatchStopHandle`

types: expose ComponentOptionsBase

build: auto publish github release on tag push

chore: add issue template config (#1057) [ci skip]

chore: update Vuex status (#1054) [ci skip]

build: add browser builds for @vue/compiler-sfc

types(compiler-sfc): expose SFCAsyncStyleCompileOptions

release: v3.0.0-beta.4

chore: add tip about Suspense being experimental

fix(runtime-core): dynamic component should support falsy values without warning

fix(types): make return type of `defineComponent` assignable to `Component` type (#1032)

fix #993

feat(types): expose `ToRefs` type (#1037)

refactor(runtime-core): extract key/ref normalization logic

chore: remove unnecessary export (#1044) [ci skip]

fix(runtime-core): fix key/ref resolution for cloneVNode

fix #1041

fix(runtime-core): fix dynamic node tracking in dynamic component that resolves to plain elements

fix #1039

feat(compiler-sfc): built-in support for css modules

feat(compiler-sfc): add preprocessCustomRequire option