diff --git a/.gitignore b/.gitignore
index 55e990f..c6389ad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,10 +13,6 @@
 /new/
 /new.*/
 # ---------------------------------------------------------------------------
-# source code tarball that creates most recent release
-/20220000.4.tar.gz
 #
-# documentation tarball that creates most recent release
-/20220000.doc.tar.gz
-#
-# replacements for tarballs above
+# Most recent upstrem source
+/CppAD-20230000.0.tar.gz
diff --git a/sources b/sources
index a9e910f..d6257f0 100644
--- a/sources
+++ b/sources
@@ -1,2 +1 @@
-SHA512 (20220000.4.tar.gz) = 778cc953a0b7aa74ef45c0405d9fd46107aa4dcdbaeca899e629aac012bf376709c907f3c5c522b6627032904a2ca0f1210ea0f51534f363a39157278c0905b3
-SHA512 (20220000.doc.tar.gz) = ba8e995c503759c41464c9b58b74db0b9305db485118703f743ee82494785cf0d7e382fa476b3295939c7aa263407310e488cd95e281b1cf9e513980f6c03c4b
+SHA512 (CppAD-20230000.0.tar.gz) = 9ed852894ab8eb1ca16a4599144293b08ca4cd9ca00e4a0585c8fea387c4a02143e065bc2c5d91dbe33ce5773aefb5ba74a6211b18827d22af70cb553d1051de