* `feature`: Features
    * New features, adding support for things that didn't exist before.
* `bug`: Fixes
    * Something that was supported didn't work, and this fixes it. There are many PRs that claim to be bug fixes because the user is doing something in an unexpected way that is not supported, but they considered it what should be supported by default. Many of these are actually features or refactors. But in some cases there's an actual bug.

  private class Itr implements Iterator<E> {
    /** Index of element to be returned by next, or a negative number if no such. */
    private int nextIndex;

    /**
     * nextItem holds on to item fields because once we claim that an element exists in hasNext(),
     * we must return it in the following next() call even if it was in the process of being removed
     * when hasNext() was called.
     */
    private @Nullable E nextItem;

  private class Itr implements Iterator<E> {
    /** Index of element to be returned by next, or a negative number if no such. */
    private int nextIndex;

    /**
     * nextItem holds on to item fields because once we claim that an element exists in hasNext(),
     * we must return it in the following next() call even if it was in the process of being removed
     * when hasNext() was called.
     */
    private @Nullable E nextItem;

* 📝 Remove obsolete `url` field in error responses in docs. PR [#13655](https://github.com/fastapi/fastapi/pull/13655) by [@Taoup](https://github.com/Taoup).
* 📝 Bring the `scope` claim in line with the standard in `docs_src/security/tutorial005.py`. PR [#11189](https://github.com/fastapi/fastapi/pull/11189) by [@DurandA](https://github.com/DurandA).