Updated the references once again after making a simple update to
the netlist in sky130_fd_io to correct the netlist for the
top_sio_macro cell.  The top_sio_macro cell now passes LVS.

VERSION

diff --git a/VERSION b/VERSION
index 2ef01da..a0bb1a6 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.602
+1.0.603

gf180mcu/gf180mcu.json

diff --git a/gf180mcu/gf180mcu.json b/gf180mcu/gf180mcu.json
index e5676ae..3f00767 100644
--- a/gf180mcu/gf180mcu.json
+++ b/gf180mcu/gf180mcu.json
@@ -97,7 +97,7 @@
         "magic": "MAGIC_COMMIT"
     },
     "reference": {
-        "open_pdks": "b8fd683254557a01a7f025772fe8789f09e39be6",
+        "open_pdks": "02c781174f49a976796a6719c7d20888b58343d3",
         "magic": "e7b8e89d2fe4eed1d51ee6a66a3d818c2095b024",
         "gf180mcu_pdk": "a897aa30369d3bcec87d9d50ce9b01f320f854ef",
         "gf180mcu_fd_pr": "a0c31bd71c2084a5283204dc4e80f1f901d2d5d0",

sky130/sky130.json

diff --git a/sky130/sky130.json b/sky130/sky130.json
index 943e662..d8ee9a7 100644
--- a/sky130/sky130.json
+++ b/sky130/sky130.json
@@ -94,10 +94,10 @@
         "magic": "MAGIC_COMMIT"
     },
     "reference": {
-        "open_pdks": "b8fd683254557a01a7f025772fe8789f09e39be6",
+        "open_pdks": "02c781174f49a976796a6719c7d20888b58343d3",
         "magic": "e7b8e89d2fe4eed1d51ee6a66a3d818c2095b024",
         "sky130_fd_pr": "403964dc7f9cca5ec1a8cc7b4f2a6f532b781676",
-        "sky130_fd_io": "8af140f093deeb92648068cf71eca372bce3d761",
+        "sky130_fd_io": "3ea30515f909f1c2f7e6ee887e83bd7fb4a78b90",
         "sky130_fd_sc_hs": "c3d7991a9bcb4fc33cbd43262b44bb5560d6fdd0",
         "sky130_fd_sc_ms": "29650994547dd83610ccd0a29bae14d665a9e556",
         "sky130_fd_sc_ls": "4283919deb7eb4ed195c2b6e95431a812491f6d0",
@@ -105,12 +105,12 @@
         "sky130_fd_sc_hd": "9cb2d7cb8ed4619094263614039a61b6b2d22a88",
         "sky130_fd_sc_hdll": "bf6e0da690bce0e3947a56ab522dee0b15ced988",
         "sky130_fd_sc_hvl": "e5413e01fa071029ba84d9faa98d9acd80e75a38",
-        "sky130_osu_sc_t12": "ac90ef0c622a9377a16b5218d9da3ac4169eeaaf",
-        "sky130_osu_sc_t15": "95d1c19abb47e1b2945847acb4e817b1b8417c43",
-        "sky130_osu_sc_t18": "aa2b509f3c8f32ea94fdb55ac9768754667c1658",
-        "sky130_sram_macros": "5ad1c96053ee8223fe7e956e314646adfce605dd",
+        "sky130_osu_sc_t12": "unknown",
+        "sky130_osu_sc_t15": "unknown",
+        "sky130_osu_sc_t18": "unknown",
+        "sky130_sram_macros": "unknown",
         "sky130_fd_bd_sram": "be33adbcf188fdeab5c061699847d9d440f7a084",
-        "sky130_fd_pr_reram": "d6d2a3c6960aac0a0b12fc21221c31777bbf284d",
+        "sky130_fd_pr_reram": "unknown",
         "sky130_ml_xx_hd": "6eb3b0718552b034f1bf1870285ff135e3fb2dcb",
         "xschem_sky130": "95cbdad0ec5fa457ffb360b6ef5596802c8900ee",
         "klayout_sky130": "4ea0975391feacbdac697bf07029d8908d292613",