* Added the `kubeadm upgrade diff` command to show how static pod manifests will be changed by an upgrade. This command shows the changes that will be made to the static pod manifests before applying them. This is a narrower case than kubeadm upgrade apply --dry-run, which specifically focuses on the static pod manifests. ([#63930](https://github.com/kubernetes/kubernetes/pull/63930), [@liztio](https://github.com/liztio))

pkg go/ast, type SelectorExpr struct
pkg go/ast, type SelectorExpr struct, Sel *Ident
pkg go/ast, type SelectorExpr struct, X Expr
pkg go/ast, type SendStmt struct
pkg go/ast, type SendStmt struct, Arrow token.Pos
pkg go/ast, type SendStmt struct, Chan Expr
pkg go/ast, type SendStmt struct, Value Expr
pkg go/ast, type SliceExpr struct
pkg go/ast, type SliceExpr struct, High Expr

pkg go/ast, method (CommentMap) Filter(Node) CommentMap
pkg go/ast, method (CommentMap) String() string
pkg go/ast, method (CommentMap) Update(Node, Node) Node
pkg go/ast, type ChanType struct, Arrow token.Pos
pkg go/ast, type CommentMap map[Node][]*CommentGroup
pkg go/build, const AllowBinary = 2
pkg go/build, const FindOnly = 1
pkg go/build, type Context struct, InstallSuffix string