* 👥 Update FastAPI People - Sponsors. PR [#13231](https://github.com/fastapi/fastapi/pull/13231) by [@tiangolo](https://github.com/tiangolo).
* 👷 Refactor FastAPI People Sponsors to use 2 tokens. PR [#13228](https://github.com/fastapi/fastapi/pull/13228) by [@tiangolo](https://github.com/tiangolo).

    * Adds `NoneTensorSpec` to the public API so that `None`s in `element_spec`
      can be identified via `isinstance(..., tf.NoneTensorSpec)`.

## Thanks to our Contributors

This release contains contributions from many people at Google, as well as:

<INSERT>, <NAME>, <HERE>, <USING>, <GITHUB>, <HANDLE>

# Release 2.20.0

## TensorFlow

### Breaking Changes

    String LDAP_ADMIN_ENABLED = "ldap.admin.enabled";

    /** The key of the configuration. e.g. uid=%s */
    String LDAP_ADMIN_USER_FILTER = "ldap.admin.user.filter";

    /** The key of the configuration. e.g. ou=People,dc=fess,dc=codelibs,dc=org */
    String LDAP_ADMIN_USER_BASE_DN = "ldap.admin.user.base.dn";

    /** The key of the configuration. e.g. organizationalPerson,top,person,inetOrgPerson */

1FABE         ; disallowed                             # NA   <reserved-1FABE>
1FABF         ; valid                  ;      ; NV8    # 15.0 GOOSE
1FAC0..1FAC2  ; valid                  ;      ; NV8    # 13.0 ANATOMICAL HEART..PEOPLE HUGGING
1FAC3..1FAC5  ; valid                  ;      ; NV8    # 14.0 PREGNANT MAN..PERSON WITH CROWN
1FAC6..1FACD  ; disallowed                             # NA   <reserved-1FAC6>..<reserved-1FACD>

$start-color, $end-color);\n  background-repeat: repeat-x;\n}\n@mixin gradient-x-three-colors($start-color: $blue, $mid-color: $purple, $color-stop: 50%, $end-color: $red) {\n  background-image: linear-gradient(to right, $start-color, $mid-color $color-stop, $end-color);\n  background-repeat: no-repeat;\n}\n@mixin gradient-y-three-colors($start-color: $blue, $mid-color: $purple, $color-stop: 50%, $end-color: $red) {\n  background-image: linear-gradient($start-color, $mid-color $color-stop, $end-color);\n...

 background-image: linear-gradient($deg, $start-color, $end-color);\n}\n\n@mixin gradient-x-three-colors($start-color: $blue, $mid-color: $purple, $color-stop: 50%, $end-color: $red) {\n  background-image: linear-gradient(to right, $start-color, $mid-color $color-stop, $end-color);\n}\n\n@mixin gradient-y-three-colors($start-color: $blue, $mid-color: $purple, $color-stop: 50%, $end-color: $red) {\n  background-image: linear-gradient($start-color, $mid-color $color-stop, $end-color);\n}\n\n@mixin...