diff --git a/flow/designs/asap7/cva6/config.mk b/flow/designs/asap7/cva6/config.mk
index 355dba03aa..4f628b4fd4 100644
--- a/flow/designs/asap7/cva6/config.mk
+++ b/flow/designs/asap7/cva6/config.mk
@@ -90,7 +90,7 @@ export SDC_FILE               = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NAME)/constr
 
 export CORE_UTILIZATION       = 70
 export CORE_MARGIN            = 2
-export MACRO_PLACE_HALO       = 3 3
+export MACRO_PLACE_HALO       = 5 5
 export PLACE_DENSITY          = 0.69
 
 # a smoketest for this option, there are a
diff --git a/flow/designs/asap7/riscv32i/config.mk b/flow/designs/asap7/riscv32i/config.mk
index 6b4175b16a..ebd8fe9f63 100644
--- a/flow/designs/asap7/riscv32i/config.mk
+++ b/flow/designs/asap7/riscv32i/config.mk
@@ -20,7 +20,7 @@ export CORE_MARGIN      = 5
 export PLACE_DENSITY_LB_ADDON = 0.10
 
 export IO_CONSTRAINTS     = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/io.tcl
-export MACRO_PLACE_HALO    = 2 2
+export MACRO_PLACE_HALO    = 4 4
 
 export TNS_END_PERCENT   = 100
 
diff --git a/flow/designs/gf12/ariane/config.mk b/flow/designs/gf12/ariane/config.mk
index 4a8e331a21..0a700d0971 100644
--- a/flow/designs/gf12/ariane/config.mk
+++ b/flow/designs/gf12/ariane/config.mk
@@ -24,7 +24,7 @@ export PLACE_DENSITY ?= 0.50
 
 export IO_CONSTRAINTS  = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/io.tcl
 
-export MACRO_PLACE_HALO = 7 7 
+export MACRO_PLACE_HALO = 10 10 
 export MACRO_WRAPPERS = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/wrappers.tcl
 
 ifeq ($(USE_FILL),1)
diff --git a/flow/designs/gf12/swerv_wrapper/config.mk b/flow/designs/gf12/swerv_wrapper/config.mk
index 2ed5601613..7ce6add1cb 100644
--- a/flow/designs/gf12/swerv_wrapper/config.mk
+++ b/flow/designs/gf12/swerv_wrapper/config.mk
@@ -28,7 +28,7 @@ export IO_CONSTRAINTS     = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NAME)/io.tcl
 export PLACE_DENSITY_LB_ADDON = 0.05
 export MACRO_WRAPPERS = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/wrappers.tcl
 #
-export MACRO_PLACE_HALO = 7 7
+export MACRO_PLACE_HALO = 9 9
 
 ifeq ($(USE_FILL),1)
 export DESIGN_TYPE = CELL
diff --git a/flow/designs/nangate45/ariane136/config.mk b/flow/designs/nangate45/ariane136/config.mk
index 04da1dc265..3ba5ef624e 100644
--- a/flow/designs/nangate45/ariane136/config.mk
+++ b/flow/designs/nangate45/ariane136/config.mk
@@ -18,7 +18,7 @@ export CORE_AREA   = 10 12 1448 1448
 
 export IO_CONSTRAINTS = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/io.tcl
 
-export MACRO_PLACE_HALO = 10 10
+export MACRO_PLACE_HALO = 12 12
 
 export TNS_END_PERCENT = 100
 export PLACE_DENSITY = 0.35
diff --git a/flow/designs/nangate45/black_parrot/config.mk b/flow/designs/nangate45/black_parrot/config.mk
index 771ea51da1..0014d85fb9 100644
--- a/flow/designs/nangate45/black_parrot/config.mk
+++ b/flow/designs/nangate45/black_parrot/config.mk
@@ -33,7 +33,7 @@ export PLACE_DENSITY_LB_ADDON = 0.05
 
 export MACRO_PLACEMENT_TCL = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NAME)/macro_placement.tcl
 
-export MACRO_PLACE_HALO    = 10 10
+export MACRO_PLACE_HALO    = 15 15
 
 export TNS_END_PERCENT     = 100
 
diff --git a/flow/designs/nangate45/bp_multi_top/config.mk b/flow/designs/nangate45/bp_multi_top/config.mk
index 60edf46ef3..767b26d48b 100644
--- a/flow/designs/nangate45/bp_multi_top/config.mk
+++ b/flow/designs/nangate45/bp_multi_top/config.mk
@@ -28,7 +28,7 @@ export DIE_AREA    = 0 0 1100 1100
 export CORE_AREA   = 10.07 9.8 1090 1090
 export IO_CONSTRAINTS = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NAME)/io.tcl
 
-export MACRO_PLACE_HALO = 10 10
+export MACRO_PLACE_HALO = 20 20
 
 export PLACE_DENSITY_LB_ADDON = 0.05
 export SKIP_GATE_CLONING      = 1
diff --git a/flow/designs/nangate45/swerv_wrapper/config.mk b/flow/designs/nangate45/swerv_wrapper/config.mk
index 9be4aea995..b813b20b2e 100644
--- a/flow/designs/nangate45/swerv_wrapper/config.mk
+++ b/flow/designs/nangate45/swerv_wrapper/config.mk
@@ -17,7 +17,7 @@ export CORE_AREA   = 10.07 11.2 1090 990
 
 export IO_CONSTRAINTS = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NAME)/io.tcl
 
-export MACRO_PLACE_HALO = 10 10
+export MACRO_PLACE_HALO = 12 12
 
 export PLACE_DENSITY_LB_ADDON = 0.08
 export TNS_END_PERCENT        = 100
diff --git a/flow/designs/nangate45/swerv_wrapper/rules-base.json b/flow/designs/nangate45/swerv_wrapper/rules-base.json
index 0e69b2a5a8..9af62948f6 100644
--- a/flow/designs/nangate45/swerv_wrapper/rules-base.json
+++ b/flow/designs/nangate45/swerv_wrapper/rules-base.json
@@ -1,11 +1,11 @@
 {
     "synth__canonical_netlist__hash": {
-        "value": "ae72f3b5b3c6b8883c8448eb3086b1310345c412",
+        "value": "04876aa8597747afe76a824832e5cc47e7188033",
         "compare": "==",
         "level": "warning"
     },
     "synth__netlist__hash": {
-        "value": "4960294d07ead3c1bd0d38e18b415d8b7a3cdfcd",
+        "value": "69293fd12a9316eb3db4f3ae97753fe26adb41e7",
         "compare": "==",
         "level": "warning"
     },
@@ -18,11 +18,11 @@
         "compare": "=="
     },
     "placeopt__design__instance__area": {
-        "value": 729155,
+        "value": 727527,
         "compare": "<="
     },
     "placeopt__design__instance__count__stdcell": {
-        "value": 110775,
+        "value": 106084,
         "compare": "<="
     },
     "detailedplace__design__violations": {
@@ -30,11 +30,11 @@
         "compare": "=="
     },
     "cts__design__instance__count__setup_buffer": {
-        "value": 9633,
+        "value": 9225,
         "compare": "<="
     },
     "cts__design__instance__count__hold_buffer": {
-        "value": 9633,
+        "value": 9225,
         "compare": "<="
     },
     "cts__timing__setup__ws": {
@@ -42,7 +42,7 @@
         "compare": ">="
     },
     "cts__timing__setup__tns": {
-        "value": -422.0,
+        "value": -415.0,
         "compare": ">="
     },
     "cts__timing__hold__ws": {
@@ -54,15 +54,15 @@
         "compare": ">="
     },
     "globalroute__antenna_diodes_count": {
-        "value": 107,
+        "value": 105,
         "compare": "<="
     },
     "globalroute__timing__setup__ws": {
-        "value": -0.337,
+        "value": -0.466,
         "compare": ">="
     },
     "globalroute__timing__setup__tns": {
-        "value": -426.0,
+        "value": -438.0,
         "compare": ">="
     },
     "globalroute__timing__hold__ws": {
@@ -86,7 +86,7 @@
         "compare": "<="
     },
     "detailedroute__antenna_diodes_count": {
-        "value": 107,
+        "value": 106,
         "compare": "<="
     },
     "finish__timing__setup__ws": {
@@ -94,7 +94,7 @@
         "compare": ">="
     },
     "finish__timing__setup__tns": {
-        "value": -418.0,
+        "value": -384.0,
         "compare": ">="
     },
     "finish__timing__hold__ws": {
diff --git a/flow/designs/nangate45/tinyRocket/rules-base.json b/flow/designs/nangate45/tinyRocket/rules-base.json
index 0e2aa067a2..84863ee8a8 100644
--- a/flow/designs/nangate45/tinyRocket/rules-base.json
+++ b/flow/designs/nangate45/tinyRocket/rules-base.json
@@ -1,11 +1,11 @@
 {
     "synth__canonical_netlist__hash": {
-        "value": "675929b98a2f4adc51e7ab08dc15383435147b74",
+        "value": "a044a2ec26d32ce5c142fe453bf2bb6c70d468e9",
         "compare": "==",
         "level": "warning"
     },
     "synth__netlist__hash": {
-        "value": "414fc0fd97ec190c6e3f5c44e9ee1c249ba40234",
+        "value": "b130a04aa6e0139ef5a81a1134effc31a22505fc",
         "compare": "==",
         "level": "warning"
     },
@@ -38,11 +38,11 @@
         "compare": "<="
     },
     "cts__timing__setup__ws": {
-        "value": -0.14,
+        "value": -0.201,
         "compare": ">="
     },
     "cts__timing__setup__tns": {
-        "value": -54.5,
+        "value": -27.9,
         "compare": ">="
     },
     "cts__timing__hold__ws": {
@@ -62,7 +62,7 @@
         "compare": ">="
     },
     "globalroute__timing__setup__tns": {
-        "value": -57.4,
+        "value": -49.7,
         "compare": ">="
     },
     "globalroute__timing__hold__ws": {
@@ -94,7 +94,7 @@
         "compare": ">="
     },
     "finish__timing__setup__tns": {
-        "value": -50.5,
+        "value": -47.7,
         "compare": ">="
     },
     "finish__timing__hold__ws": {
diff --git a/flow/designs/sky130hd/chameleon/config.mk b/flow/designs/sky130hd/chameleon/config.mk
index 9636be3769..1952391e61 100644
--- a/flow/designs/sky130hd/chameleon/config.mk
+++ b/flow/designs/sky130hd/chameleon/config.mk
@@ -48,3 +48,5 @@ export ADDITIONAL_LEFS  = $(DESIGN_DIR)/lef/apb_sys_0.lef \
 export FP_PDN_RAIL_WIDTH  = 0.48
 export FP_PDN_RAIL_OFFSET = 0
 export TNS_END_PERCENT    = 100
+
+export MACRO_PLACE_HALO = 35 35
diff --git a/flow/designs/sky130hd/chameleon/rules-base.json b/flow/designs/sky130hd/chameleon/rules-base.json
index af39080e88..11af363074 100644
--- a/flow/designs/sky130hd/chameleon/rules-base.json
+++ b/flow/designs/sky130hd/chameleon/rules-base.json
@@ -1,11 +1,11 @@
 {
     "synth__canonical_netlist__hash": {
-        "value": "a279612250a1367c37ea08f7b0bb8a08ae725da3",
+        "value": "3024027ad30e973f5b4459bd0e120c6c23ceb89e",
         "compare": "==",
         "level": "warning"
     },
     "synth__netlist__hash": {
-        "value": "edd4949a57adadaae7b7d99d440f03eae351e498",
+        "value": "8a1f4c88e692a05b73d7d3e5192e75e79822f1d5",
         "compare": "==",
         "level": "warning"
     },
@@ -42,7 +42,7 @@
         "compare": ">="
     },
     "cts__timing__setup__tns": {
-        "value": -373.0,
+        "value": -114.0,
         "compare": ">="
     },
     "cts__timing__hold__ws": {
@@ -54,15 +54,15 @@
         "compare": ">="
     },
     "globalroute__antenna_diodes_count": {
-        "value": 161,
+        "value": 224,
         "compare": "<="
     },
     "globalroute__timing__setup__ws": {
-        "value": -2.35,
+        "value": -2.32,
         "compare": ">="
     },
     "globalroute__timing__setup__tns": {
-        "value": -363.0,
+        "value": -42.9,
         "compare": ">="
     },
     "globalroute__timing__hold__ws": {
@@ -86,15 +86,15 @@
         "compare": "<="
     },
     "detailedroute__antenna_diodes_count": {
-        "value": 100,
+        "value": 158,
         "compare": "<="
     },
     "finish__timing__setup__ws": {
-        "value": -2.15,
+        "value": -2.06,
         "compare": ">="
     },
     "finish__timing__setup__tns": {
-        "value": -354.0,
+        "value": -39.9,
         "compare": ">="
     },
     "finish__timing__hold__ws": {
@@ -109,4 +109,4 @@
         "value": 6519902,
         "compare": "<="
     }
-}
+}
\ No newline at end of file
diff --git a/flow/designs/sky130hd/microwatt/config.mk b/flow/designs/sky130hd/microwatt/config.mk
index 22cb13c023..9eef7cd484 100644
--- a/flow/designs/sky130hd/microwatt/config.mk
+++ b/flow/designs/sky130hd/microwatt/config.mk
@@ -21,7 +21,7 @@ export SYNTH_HIERARCHICAL = 1
 
 export PLACE_DENSITY = 0.3
 
-export MACRO_PLACE_HALO = 60 60
+export MACRO_PLACE_HALO = 50 50
 
 # CTS tuning
 export CTS_BUF_DISTANCE = 600
diff --git a/flow/designs/sky130hd/microwatt/rules-base.json b/flow/designs/sky130hd/microwatt/rules-base.json
index 1b1aa392bc..593fe9e678 100644
--- a/flow/designs/sky130hd/microwatt/rules-base.json
+++ b/flow/designs/sky130hd/microwatt/rules-base.json
@@ -1,11 +1,11 @@
 {
     "synth__canonical_netlist__hash": {
-        "value": "642ebe77b86723b162e5f260e5abae1ad1003847",
+        "value": "a07cb0bb2ab74796be4909c263c6dff6da4b470a",
         "compare": "==",
         "level": "warning"
     },
     "synth__netlist__hash": {
-        "value": "f6ccf3a646ec63990a474d9bdcb96fcfe1b7edde",
+        "value": "388289eb539881bcf988621a3b4daa444487f655",
         "compare": "==",
         "level": "warning"
     },
@@ -18,11 +18,11 @@
         "compare": "=="
     },
     "placeopt__design__instance__area": {
-        "value": 5427782,
+        "value": 5408427,
         "compare": "<="
     },
     "placeopt__design__instance__count__stdcell": {
-        "value": 184133,
+        "value": 181507,
         "compare": "<="
     },
     "detailedplace__design__violations": {
@@ -30,19 +30,19 @@
         "compare": "=="
     },
     "cts__design__instance__count__setup_buffer": {
-        "value": 16012,
+        "value": 15783,
         "compare": "<="
     },
     "cts__design__instance__count__hold_buffer": {
-        "value": 16012,
+        "value": 15783,
         "compare": "<="
     },
     "cts__timing__setup__ws": {
-        "value": -2.43,
+        "value": -2.32,
         "compare": ">="
     },
     "cts__timing__setup__tns": {
-        "value": -249.0,
+        "value": -254.0,
         "compare": ">="
     },
     "cts__timing__hold__ws": {
@@ -54,15 +54,15 @@
         "compare": ">="
     },
     "globalroute__antenna_diodes_count": {
-        "value": 5162,
+        "value": 1456,
         "compare": "<="
     },
     "globalroute__timing__setup__ws": {
-        "value": -2.28,
+        "value": -2.21,
         "compare": ">="
     },
     "globalroute__timing__setup__tns": {
-        "value": -241.0,
+        "value": -227.0,
         "compare": ">="
     },
     "globalroute__timing__hold__ws": {
@@ -74,7 +74,7 @@
         "compare": ">="
     },
     "detailedroute__route__wirelength": {
-        "value": 8240415,
+        "value": 8076674,
         "compare": "<="
     },
     "detailedroute__route__drc_errors": {
@@ -82,31 +82,31 @@
         "compare": "<="
     },
     "detailedroute__antenna__violating__nets": {
-        "value": 10,
+        "value": 1,
         "compare": "<="
     },
     "detailedroute__antenna_diodes_count": {
-        "value": 2411,
+        "value": 1219,
         "compare": "<="
     },
     "finish__timing__setup__ws": {
-        "value": -2.27,
+        "value": -2.16,
         "compare": ">="
     },
     "finish__timing__setup__tns": {
-        "value": -236.0,
+        "value": -215.0,
         "compare": ">="
     },
     "finish__timing__hold__ws": {
-        "value": -0.89,
+        "value": -0.883,
         "compare": ">="
     },
     "finish__timing__hold__tns": {
-        "value": -4.0,
+        "value": -3.42,
         "compare": ">="
     },
     "finish__design__instance__area": {
-        "value": 5570244,
+        "value": 5568932,
         "compare": "<="
     }
-}
+}
\ No newline at end of file
diff --git a/tools/OpenROAD b/tools/OpenROAD
index 2f4beb6c91..7cfb2105c9 160000
--- a/tools/OpenROAD
+++ b/tools/OpenROAD
@@ -1 +1 @@
-Subproject commit 2f4beb6c917d5de4c05a4f59354d3bd77ed4a5c4
+Subproject commit 7cfb2105c93c35ce73de9cf4f538de1c9bf8115a