Wagtail 4.1 is designated a Long Term Support (LTS) release. Long Term Support releases will continue to receive maintenance updates as necessary to address security and data-loss related issues, up until the next LTS release (typically a period of 12 months).
## What's new
### Other features
* Add basic keyboard control and screen reader support for page listing re-ordering (Paarth Agarwal, Thomas van der Hoeven)
* Optimise the performance of the Wagtail userbar to remove duplicated queries, improving page loads when viewing live pages while signed in (Jake Howard)
* Pull out behaviour from `AbstractFormField` to `FormMixin` and `AbstractEmailForm` to `EmailFormMixin` to allow use with subclasses of `Page` [](form_builder_mixins) (Mehrdad Moradizadeh, Kurt Wall)
* Add a `docs.wagtail.org/.well-known/security.txt` so that the security policy is available as per the specification on [https://securitytxt.org/](https://securitytxt.org/) (Jake Howard)
* Show an inverse locked indicator when the page has been locked by the current user in reports and dashboard listings (Vaibhav Shukla, LB (Ben Johnston))
* Add clarity to the development documentation that `admonition` should not be used and titles for `note` are not supported, including clean up of some existing incorrect usage (LB (Ben Johnston))
When adding custom buttons using the `ModelAdmin``ButtonHelper` class, custom buttons will no longer include the `button-secondary` class by default in index listings.
If using the hook `register_user_listing_buttons` to register buttons along with the undocumented `UserListingButton` class, the `button-secondary` class will no longer be included by default.