## Major Features and Improvements

*   Support for Python3.9 has been added.
*   `tf.data`:
    *   `tf.data` service now supports strict round-robin reads, which is useful
        for synchronous training workloads where example sizes vary. With strict
        round robin reads, users can guarantee that consumers get similar-sized
        examples in the same step.

sticky) {\n    position: sticky;\n    top: 0;\n    z-index: $zindex-sticky;\n  }\n}\n","//\n// Screenreaders\n//\n\n.sr-only {\n  @include sr-only();\n}\n\n.sr-only-focusable {\n  @include sr-only-focusable();\n}\n","// Only display content to screen readers\n//\n// See: https://www.a11yproject.com/posts/2013-01-11-how-to-hide-content/\n// See: https://kittygiraudel.com/2016/10/13/css-hide-and-seek/\n\n@mixin sr-only() {\n  position: absolute;\n  width: 1px;\n  height: 1px;\n  padding: 0;\n  margin: -1px;...

sticky) {\n    position: sticky;\n    top: 0;\n    z-index: $zindex-sticky;\n  }\n}\n","//\n// Screenreaders\n//\n\n.sr-only {\n  @include sr-only();\n}\n\n.sr-only-focusable {\n  @include sr-only-focusable();\n}\n","// Only display content to screen readers\n//\n// See: https://a11yproject.com/posts/how-to-hide-content/\n// See: https://hugogiraudel.com/2016/10/13/css-hide-and-seek/\n\n@mixin sr-only() {\n  position: absolute;\n  width: 1px;\n  height: 1px;\n  padding: 0;\n  margin: -1px; // Fix for...