If you maintain controllers that previously relied on matchLabelKeys (for instance, to simulate scheduling), 
  you likely no longer need to handle matchLabelKeys directly. Instead, you can just rely on the labelSelector field going forward.
  

* Users may now execute `get-kube-binaries.sh` to request a client for an OS/Arch unlike the one of the host on which the script is invoked. ([#74889](https://github.com/kubernetes/kubernetes/pull/74889), [@akutz](https://github.com/akutz))

are still holding on to those resources. This stricter handling may surface to end users as pod rejections when creating pods that are scheduled to mostly full nodes that have other terminating pods holding the resources the new pods need. The most likely error would be a pod set to `Failed` phase with reason set to `OutOfCpu` or `OutOfMemory`, but any resource on the node that has some fixed limit (including persistent volume counts on cloud nodes, exclusive CPU cores, or unique hardware devices)...

border-style: none;\n}\n\n// 1. Textareas should really only resize vertically so they don't break their (horizontal) containers.\n\ntextarea {\n  resize: vertical; // 1\n}\n\n// 1. Browsers set a default `min-width: min-content;` on fieldsets,\n//    unlike e.g. `<div>`s, which have `min-width: 0;` by default.\n//    So we reset that to ensure fieldsets behave more like a standard block element.\n//    See https://github.com/twbs/bootstrap/issues/12359\n//    and https://html.spec.whatwg.org/multipa...

default vertical scrollbar in IE.\n  // Textareas should really only resize vertically so they don't break their (horizontal) containers.\n  resize: vertical;\n}\n\nfieldset {\n  // Browsers set a default `min-width: min-content;` on fieldsets,\n  // unlike e.g. `<div>`s, which have `min-width: 0;` by default.\n  // So we reset that to ensure fieldsets behave more like a standard block element.\n  // See https://github.com/twbs/bootstrap/issues/12359\n  // and https://html.spec.whatwg.org/multipage/...

default vertical scrollbar in IE.\n  // Textareas should really only resize vertically so they don't break their (horizontal) containers.\n  resize: vertical;\n}\n\nfieldset {\n  // Browsers set a default `min-width: min-content;` on fieldsets,\n  // unlike e.g. `<div>`s, which have `min-width: 0;` by default.\n  // So we reset that to ensure fieldsets behave more like a standard block element.\n  // See https://github.com/twbs/bootstrap/issues/12359\n  // and https://html.spec.whatwg.org/multipage/...