Add SE-0366 and 377 to the changelog.

Author: jckarter

CHANGELOG.md

@@ -2,6 +2,47 @@
 
 _**Note:** This is in reverse chronological order, so newer entries are added to the top._
 
+## Swift 5.9
+
+* [SE-0366][]:
+
+  The lifetime of a local variable value can be explicitly ended using the
+  `consume` operator, forwarding ownership to the surrounding call, assignment,
+  or initialization without copying:
+
+  ```swift
+  var x: [String] = []
+  x.append("apples")
+  x.append("bananas")
+  x.append("oranges")
+
+  process(consume x) // forward the current value, without copying
+
+  x = [] // start building a new value
+  x.append("broccoli")
+  x.append("cauliflower")
+  x.append("asparagus")
+  ...
+  ```
+
+* [SE-0377][]:
+
+  Functions can now declare whether they take value parameters by `borrowing`
+  access to a value provided by the caller, or by `consuming` a value that the
+  callee is allowed to take ownership of:
+
+  ```
+  struct HealthyFoods {
+    var values: [String] = []
+
+    // Ask to `consume` the parameter, since we want to use it
+    // to incorporate into our own `values` array
+    mutating func add(_ value: consuming String) {
+        values.append(value)
+    }
+  }
+  ```
+
 ## Swift 5.8
 
 * [SE-0376][]:
@@ -9637,8 +9678,10 @@ using the `.dynamicType` member to retrieve the type of an expression should mig
 [SE-0358]: <https://github.com/apple/swift-evolution/blob/main/proposals/0358-primary-associated-types-in-stdlib.md>
 [SE-0362]: <https://github.com/apple/swift-evolution/blob/main/proposals/0362-piecemeal-future-features.md>
 [SE-0365]: <https://github.com/apple/swift-evolution/blob/main/proposals/0365-implicit-self-weak-capture.md>
+[SE-0366]: <https://github.com/apple/swift-evolution/blob/main/proposals/0366-move-function.md>
 [SE-0370]: <https://github.com/apple/swift-evolution/blob/main/proposals/0370-pointer-family-initialization-improvements.md>
 [SE-0376]: <https://github.com/apple/swift-evolution/blob/main/proposals/0376-function-back-deployment.md>
+[SE-0377]: <https://github.com/apple/swift-evolution/blob/main/proposals/0377-parameter-ownership-modifiers.md>
 
 [#42697]: <https://github.com/apple/swift/issues/42697>
 [#42728]: <https://github.com/apple/swift/issues/42728>