unpoly-migrate.js, the progress bar is disabled if you have an up:request:late listener, assuming that you have built a custom loading indicator.[up-history-visible] and [up-history] options have been unified into a single [up-history] option. This reverts to the old behavior of Unpoly 1.0. The separation into two options was introduced in Unpoly 2.0, but turned out to be confusing to users.{ scroll } and { focus }. These take precendence to defaults in up.fragment.config.navigateOptions.[up-instant] attribute are now followed automatically, even if they don't also have an [up-follow] attribute.
If you're upgrading from an older Unpoly version you should load unpoly-migrate.js
to polyfill deprecated APIs.
Changes handled by unpoly-migrate.js are not considered breaking changes.
See our upgrading guide for details.