Updated references to include the most recent bug fix for DRC
issues in the sky130_sram_macros library.

VERSION

diff --git a/VERSION b/VERSION
index 452226a..a24cb9b 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.498
+1.0.499

gf180mcu/gf180mcu.json

diff --git a/gf180mcu/gf180mcu.json b/gf180mcu/gf180mcu.json
index e8ecd00..0829555 100644
--- a/gf180mcu/gf180mcu.json
+++ b/gf180mcu/gf180mcu.json
@@ -89,8 +89,8 @@
         "magic": "MAGIC_COMMIT"
     },
     "reference": {
-        "open_pdks": "0fe599b2afb6708d281543108caf8310912f54af",
-        "magic": "974621ebe7fd023721332479ab6c64dfcf357aa2",
+        "open_pdks": "8c312fd9be7c9a9a2821c0821d1421c00e13d139",
+        "magic": "b7942cffe6de3bac78bef3ee745097ecd72c689f",
         "gf180mcu_pdk": "a897aa30369d3bcec87d9d50ce9b01f320f854ef",
         "gf180mcu_fd_pr": "a11222d681f2134ab28e97f97b9b99b6af188f88",
         "gf180mcu_fd_pv": "e9410df04da5b64a1053aa6e5180dc144b8a12a2",

sky130/sky130.json

diff --git a/sky130/sky130.json b/sky130/sky130.json
index af8eba3..264e230 100644
--- a/sky130/sky130.json
+++ b/sky130/sky130.json
@@ -94,8 +94,8 @@
         "magic": "MAGIC_COMMIT"
     },
     "reference": {
-        "open_pdks": "0fe599b2afb6708d281543108caf8310912f54af",
-        "magic": "974621ebe7fd023721332479ab6c64dfcf357aa2",
+        "open_pdks": "8c312fd9be7c9a9a2821c0821d1421c00e13d139",
+        "magic": "b7942cffe6de3bac78bef3ee745097ecd72c689f",
         "sky130_fd_pr": "afc63d29f811b65b9888b2133fd3348eefc92046",
         "sky130_fd_io": "d3b662d017ce4fb5d4e3c3922ac81f744111e010",
         "sky130_fd_sc_hs": "9a855e97aa75f8a14be7eadc365c28d50045d5fc",
@@ -108,7 +108,7 @@
         "sky130_osu_sc_t12": "ac90ef0c622a9377a16b5218d9da3ac4169eeaaf",
         "sky130_osu_sc_t15": "95d1c19abb47e1b2945847acb4e817b1b8417c43",
         "sky130_osu_sc_t18": "aa2b509f3c8f32ea94fdb55ac9768754667c1658",
-        "sky130_sram_macros": "7b40220ebd47b8c17d58a94abaa57f111a08987a",
+        "sky130_sram_macros": "ebfbf5775c8cd433ad38a4d825e46c2275231511",
         "sky130_fd_bd_sram": "be33adbcf188fdeab5c061699847d9d440f7a084",
         "sky130_fd_pr_reram": "d6d2a3c6960aac0a0b12fc21221c31777bbf284d",
         "sky130_ml_xx_hd": "6eb3b0718552b034f1bf1870285ff135e3fb2dcb",