v19.0.0
Bump canary versions to v19-canary (#28646)
React DOM: Add support for Popover API (#27981)
Bump follow-redirects from 1.15.4 to 1.15.6 in /fixtures/concurrent/time-slicing (#28572)
Rename "next" prerelease channel to "canary" (#26761)
[fix] replace polyfill.io with cloudflare equivalent (#30123)
Rename yarn build-combined to just yarn build (#26192)
Bump browserify-sign from 4.0.4 to 4.2.2 in /fixtures/expiration (#27600)
Rename `yarn start` to `yarn dev` and `yarn start:prod` to `yarn start` (#26209)
[UMD] Remove umd builds (#28735)
[Flight] Enable Server Action Source Maps in flight-esm Fixture (#30763)
Rename SSRManifest to ServerConsumerManifest (#31299)
Bump braces from 3.0.2 to 3.0.3 in /fixtures/legacy-jsx-runtimes (#29844)
docs: fix typo in fixtures/nesting/README.md (#27507)
Bump browserify-sign from 4.0.4 to 4.2.2 in /fixtures/packaging/brunch/prod (#27598)
Bump braces from 3.0.2 to 3.0.3 in /fixtures/stacks (#29843)