Merge pull request #6299 from Shopify/release-notes-3.84

Add release notes for 3.84

Author: gonzaloriestra

RELEASE_NOTES/3.84.md

@@ -0,0 +1,22 @@
+## App
+- Adds compatibility for the Next-gen Dev Platform: https://shopify.dev/docs/beta/next-gen-dev-platform
+- Relative app proxy urls. App proxy url values that start with / are automatically prepended with the application_url https://github.com/Shopify/cli/pull/6147
+
+## Theme
+- Allow multi-environment theme commands to accept flags from CLI https://github.com/Shopify/cli/pull/6124
+- Prompt for confirmation before running multi-environment theme commands that allow `--force` flag https://github.com/Shopify/cli/pull/6124
+- Update fetched AI instructions https://github.com/Shopify/cli/pull/6234
+- Allow commands run with multiple environments to require "one of" a list of flags https://github.com/Shopify/cli/pull/6161
+- Allow theme rename command to be run with multiple environments https://github.com/Shopify/cli/pull/6161
+- Add a warning for users declaring multiple environments in a command that only supports a single environment https://github.com/Shopify/cli/pull/6006
+- Fix custom network behaviour for theme commands not being used https://github.com/Shopify/cli/pull/6265
+- Add more retryable errors and improve consistency of identifying retryable conditions https://github.com/Shopify/cli/pull/6244
+- Uses _shopify_essential cookie for storefront authentication https://github.com/Shopify/cli/pull/6148
+- Remove request logs from the theme app extensions development server for a cleaner developer experience https://github.com/Shopify/cli/pull/6298
+- Fixed theme dev error on HTTP 304 patched responses https://github.com/Shopify/cli/pull/6264
+- Fixed issue with json files being returned as html/text content type in theme dev https://github.com/Shopify/cli/pull/6156
+- Removed workflows folder in .github when cloning skeleton theme https://github.com/Shopify/cli/pull/6166
+- Provide error when using non-theme access app password https://github.com/Shopify/cli/pull/6153
+- Remove .git dir after initializing new theme https://github.com/Shopify/cli/pull/6232
+- Prevent shopify app dev sessions from opening multiple tabs in the browser during re-authentication https://github.com/Shopify/cli/pull/6230
+- Fix shopify app dev to serve local assets as expected https://github.com/Shopify/cli/pull/6237