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This PR contains the following updates:
<2.7
-><2.8
1.7.3
->1.9.2
Release Notes
vuejs/vue (vue-server-renderer)
v2.7.16
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Bug Fixes
v2.7.15
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Bug Fixes
defineProps
statement (#12879) (51fef2c)v-on
(#12862) (b8c8b3f)withDefaults
(#12872) (099401e)v2.7.14
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Bug Fixes
EventHandlers
(#12840) (0b3cf7d), closes #12832v2.7.13
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Bug Fixes
v2.7.12
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Reverts
v2.7.11
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Bug Fixes
Performance Improvements
v2.7.10
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Bug Fixes
v2.7.9
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Bug Fixes
Features
v2.7.8
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Bug Fixes
<script setup>
component resolution edge case with v3 (#12687) (a695c5a), closes #12685defineAsyncComponent
type (#12684) (ba7dd2c)Features
useListeners()
helper (adf3ac8)v2.7.7
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Bug Fixes
v2.7.6
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Bug Fixes
v2.7.5
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Bug Fixes
vue.runtime.mjs
(#12648) (08fb4a2)v2.7.4
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Bug Fixes
Features
v2.7.3
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Bug Fixes
v2.7.2
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Bug Fixes
Features
v2.7.1
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Bug Fixes
v2.7.0
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Backported Features
<script setup>
In addition, the following APIs are also supported:
defineComponent()
with improved type inference (compared toVue.extend
)h()
,useSlot()
,useAttrs()
,useCssModules()
set()
,del()
andnextTick()
are also provided as named exports in ESM builds.The
emits
option is also supported, but only for type-checking purposes (does not affect runtime behavior)2.7 also supports using ESNext syntax in template expressions. When using a build system, the compiled template render function will go through the same loaders / plugins configured for normal JavaScript. This means if you have configured Babel for
.js
files, it will also apply to the expressions in your SFC templates.Notes on API exposure
In ESM builds, these APIs are provided as named exports (and named exports only):
In UMD and CJS builds, these APIs are exposed as properties on the global
Vue
object.When bundling with CJS builds externalized, bundlers should be able to handle ESM interop when externalizing CJS builds.
Behavior Differences from Vue 3
The Composition API is backported using Vue 2's getter/setter-based reactivity system to ensure browser compatibility. This means there are some important behavior differences from Vue 3's proxy-based system:
All Vue 2 change detection caveats still apply.
reactive()
,ref()
, andshallowReactive()
will directly convert original objects instead of creating proxies. This means:readonly()
does create a separate object, but it won't track newly added properties and does not work on arrays.Avoid using arrays as root values in
reactive()
because without property access the array's mutation won't be tracked (this will result in a warning).Reactivity APIs ignore properties with symbol keys.
In addition, the following features are explicitly NOT ported:
createApp()
(Vue 2 doesn't have isolated app scope)await
in<script setup>
(Vue 2 does not support async component initialization)expose
option is not supported for options components (butdefineExpose()
is supported in<script setup>
).TypeScript Changes
defineComponent
provides improved type inference similar to that of Vue 3. Note the type ofthis
insidedefineComponent()
is not interoperable withthis
fromVue.extend()
.Similar to Vue 3, TSX support is now built-in. If your project previously had manual JSX type shims, make sure to remove them.
Upgrade Guide
Vue CLI / webpack
Upgrade local
@vue/cli-xxx
dependencies the latest version in your major version range (if applicable):~4.5.18
for v4~5.0.6
for v5Upgrade
vue
to^2.7.0
. You can also removevue-template-compiler
from the dependencies - it is no longer needed in 2.7.Note: if you are using
@vue/test-utils
, you may need to keep it in the dependencies for now, but this requirement will also be lifted in a new release of test utils.Check your package manager lockfile to ensure the following dependencies meet the version requirements. They may be transitive dependencies not listed in
package.json
.vue-loader
:^15.10.0
vue-demi
:^0.13.1
If not, you will need to remove
node_modules
and the lockfile and perform a fresh install to ensure they are bumped to the latest version.If you were previously using
@vue/composition-api
, update imports from it tovue
instead. Note that some APIs exported by the plugin, e.g.createApp
, are not ported in 2.7.Update
eslint-plugin-vue
to latest version (9+) if you run into unused variable lint errors when using<script setup>
.The SFC compiler for 2.7 now uses PostCSS 8 (upgraded from 7). PostCSS 8 should be backwards compatible with most plugins, but the upgrade may cause issues if you were previously using a custom PostCSS plugin that can only work with PostCSS 7. In such cases, you will need to upgrade the relevant plugins to their PostCSS 8 compatible versions.
Vite
2.7 support for Vite is provided via a new plugin: @vitejs/plugin-vue2. This new plugin requires Vue 2.7 or above and supersedes the existing vite-plugin-vue2.
Note that the new plugin does not handle Vue-specific JSX / TSX transform, which is intentional. Vue 2 JSX / TSX transform should be handled in a separate, dedicated plugin, which will be provided soon.
Volar Compatibility
2.7 ships improved type definitions so it is no longer necessary to install
@vue/runtime-dom
just for Volar template type inference support. All you need now is the following config intsconfig.json
:Devtools Support
Vue Devtools 6.2.0 has added support for inspecting 2.7 Composition API state, but the extensions may still need a few days to go through review on respective publishing platforms.
Bug Fixes
vuetifyjs/vuetify-loader (vuetify-loader)
v1.9.2
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Bug Fixes
v1.9.1
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Bug Fixes
v1.9.0
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Features
v1.8.0
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Configuration
📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).
🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.
♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.
👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.
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