internal/history: document Go 1.19.5 and 1.18.10 releases

Change-Id: I0e56f43263f3bb2b50bf89a9b6d3425e3ac696a0
Reviewed-on: https://go-review.googlesource.com/c/website/+/461335
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Carlos Amedee <carlos@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Auto-Submit: Carlos Amedee <carlos@golang.org>
diff --git a/internal/history/release.go b/internal/history/release.go
index fa8b0b9..e12f832 100644
--- a/internal/history/release.go
+++ b/internal/history/release.go
@@ -15,6 +15,20 @@
 // The table is sorted by date, breaking ties with newer versions first.
 var Releases = []*Release{
 	{
+		Date: Date{2023, 1, 10}, Version: Version{1, 19, 5},
+		Bug: &FixSummary{
+			Components: []template.HTML{"the compiler", "the linker"},
+			Packages:   []string{"crypto/x509", "net/http", "sync/atomic", "syscall"},
+		},
+	},
+	{
+		Date: Date{2023, 1, 10}, Version: Version{1, 18, 10},
+		Bug: &FixSummary{
+			Components: []template.HTML{"cgo", "the compiler", "the linker"},
+			Packages:   []string{"crypto/x509", "net/http", "syscall"},
+		},
+	},
+	{
 		Date: Date{2022, 12, 6}, Version: Version{1, 19, 4},
 		Security: &FixSummary{
 			Packages: []string{"net/http", "os"},