Doc to help updating downstream applications. Breaking changes and packages updates are listed here.

Please open an issue or a pull request if you feel this doc is incomplete.

From 1.13.5 to 1.14

See migration article from Vulcan Blog
serverTimezoneOffset object is no longer injected in the head during SSR. Use import { InjectData} from 'meteor/vulcan:lib; ...; await InjectData.getData("utcOffset"); instead. The value is the reverse from getTimezoneOffset, see Moment doc

Update to v4 meteor npm i --save-exact @material-ui/core@4.5.1
import MuiThemeProvider from @material-ui/core/styles/MuiThemeProvider" becomes import { MuiThemeProvider } from "@material-ui/core/styles"
More broadly follow https://material-ui.com/guides/migration-v3/ to update Material UI to v4
Follow the composition doc to handle forwardRef warnings: https://material-ui.com/guides/composition/#caveat-with-refs

From 1.13.3 to 1.13.5

Update React to a version over 16.8 (and under 17 which will bring breaking changes) to access hooks
Update React Apollo and Apollo Client to access GraphQL hooks: npm i --save-exact apollo-client@2.6.3; npm i --save react-apollo@3.0.0
compose is not exported by react-apollo, use recompose instead.
More broadly see react-apollo changelog for breaking changes
editMutation, newMutation etc. are deprecated, use the new updateFoo, createFoo syntax. An error message is thrown where deprecated mutations are used to help debugging
When using Vulcan data oriented hooks (useMulti, useCreate...), use the new queryOptions and mutationOptions option to pass options to the underlying useQuery and useMutation hooks. Example call: useMulti({collection: Foos, queryOptions: { errorPolicy: "all" } }).
No need to call registerComponent anymore to use Vulcan HOC. You can call them directly even if the underlying fragment is not yet registered.
Watched Mutations has been removed because it didn't work anymore, in favour to better Apollo's update option for mutations.