Release 2.9.0

The 2.9 minor series tracks TensorFlow 2.9.

Features

• Prefer the WebGL Renderer (#5492, #5494)
• New --detect_file_replacement flag allows showing new data even when event files are replaced entirely rather than appended to. Useful for rsync and some cloud filesystems (#5529, #5546, see also #349)
• Support for s3://, hdfs://, and other cloud filesystems no longer included in TensorFlow 2.6+ - requires installing tensorflow-io package (#5491)

Bug fixes

• Fix for incorrect alpha-channel layering (#5571, #5567)
• Fix histogram tooltips that bleed out of content box. (#5631)
• Fix for run table overlapping text in npmi plugin (#5468)
• Numerous internal fixes & refactorings related to navigation & state management
• Removes dependency on org_tensorflow (#5528)