TensorFlow's core.
*   Improved multi-threaded performance of `batch_matmul`.
*   LSTMCell, BasicLSTMCell, and MultiRNNCell constructors now default to
    `state_is_tuple=True`. For a quick fix while transitioning to the new
    default, simply pass the argument `state_is_tuple=False`.
*   DeviceFactory's AddDevices and CreateDevices functions now return a Status
    instead of void.

* 🔧 Add Classiq sponsor. PR [#4671](https://github.com/tiangolo/fastapi/pull/4671) by [@tiangolo](https://github.com/tiangolo).
* 📝 Add Jina's QA Bot to the docs to help people that want to ask quick questions. PR [#4655](https://github.com/tiangolo/fastapi/pull/4655) by [@tiangolo](https://github.com/tiangolo) based on original PR [#4626](https://github.com/tiangolo/fastapi/pull/4626) by [@hanxiao](https://github.com/hanxiao).

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border-radius($badge-border-radius);\n  @include transition($badge-transition);\n\n  @at-root a#{&} {\n    @include hover-focus() {\n      text-decoration: none;\n    }\n  }\n\n  // Empty badges collapse automatically\n  &:empty {\n    display: none;\n  }\n}\n\n// Quick fix for badges in buttons\n.btn .badge {\n  position: relative;\n  top: -1px;\n}\n\n// Pill badges\n//\n// Make them extra rounded with a modifier to replace v3's badges.\n\n.badge-pill {\n  padding-right: $badge-pill-padding-x;\n  padding-left: $...