diff --git a/gopls/doc/settings.md b/gopls/doc/settings.md
index 34fb8d01ce..5595976363 100644
--- a/gopls/doc/settings.md
+++ b/gopls/doc/settings.md
@@ -510,13 +510,14 @@ Default: `false`.
 
 #### **newDiff** *string*
 
-newDiff enables the new diff implementation. If this is "both",
-for now both diffs will be run and statistics will be generateted in
-a file in $TMPDIR. This is a risky setting; help in trying it
-is appreciated. If it is "old" the old implementation is used,
-and if it is "new", just the new implementation is used.
+newDiff enables the new diff implementation. If this is "both", for now both
+diffs will be run and statistics will be generated in a file in $TMPDIR. This
+is a risky setting; help in trying it is appreciated. If it is "old" the old
+implementation is used, and if it is "new", just the new implementation is
+used. This setting will eventually be deleted, once gopls has fully migrated to
+the new diff algorithm.
 
-Default: 'old'.
+Default: 'both'.
 
 ## Code Lenses
 
diff --git a/gopls/internal/lsp/source/options.go b/gopls/internal/lsp/source/options.go
index 136ba23d86..89442a32bd 100644
--- a/gopls/internal/lsp/source/options.go
+++ b/gopls/internal/lsp/source/options.go
@@ -613,11 +613,10 @@ type InternalOptions struct {
 	// This option applies only during initialization.
 	ShowBugReports bool
 
-	// NewDiff controls the choice of the new diff implementation.
-	// It can be 'new', 'checked', or 'old' which is the default.
-	// 'checked' computes diffs with both algorithms, checks
-	// that the new algorithm has worked, and write some summary
-	// statistics to a file in os.TmpDir()
+	// NewDiff controls the choice of the new diff implementation. It can be
+	// 'new', 'old', or 'both', which is the default. 'both' computes diffs with
+	// both algorithms, checks that the new algorithm has worked, and write some
+	// summary statistics to a file in os.TmpDir().
 	NewDiff string
 
 	// ChattyDiagnostics controls whether to report file diagnostics for each