diff --git a/crates/sui-adapter-transactional-tests/tests/child_count/delete_by_wrap_one_txn.exp b/crates/sui-adapter-transactional-tests/tests/child_count/delete_by_wrap_one_txn.exp
index b754dc6b3f79b5..5d285d84298324 100644
--- a/crates/sui-adapter-transactional-tests/tests/child_count/delete_by_wrap_one_txn.exp
+++ b/crates/sui-adapter-transactional-tests/tests/child_count/delete_by_wrap_one_txn.exp
@@ -6,7 +6,7 @@ A: object(0,0), B: object(0,1)
 task 1 'publish'. lines 9-31:
 created: object(1,0)
 mutated: object(0,2)
-gas summary: computation_cost: 1000000, storage_cost: 6102800,  storage_rebate: 0, non_refundable_storage_fee: 0
+gas summary: computation_cost: 1000000, storage_cost: 6087600,  storage_rebate: 0, non_refundable_storage_fee: 0
 
 task 2 'run'. lines 33-33:
 created: object(2,0), object(2,1), object(2,2)
diff --git a/crates/sui-adapter-transactional-tests/tests/dynamic_fields/receive_remove_add_back_and_remove_type.exp b/crates/sui-adapter-transactional-tests/tests/dynamic_fields/receive_remove_add_back_and_remove_type.exp
index 96a171bdbc13b4..e12b2c50711852 100644
--- a/crates/sui-adapter-transactional-tests/tests/dynamic_fields/receive_remove_add_back_and_remove_type.exp
+++ b/crates/sui-adapter-transactional-tests/tests/dynamic_fields/receive_remove_add_back_and_remove_type.exp
@@ -6,7 +6,7 @@ A: object(0,0)
 task 1 'publish'. lines 11-87:
 created: object(1,0)
 mutated: object(0,1)
-gas summary: computation_cost: 1000000, storage_cost: 12897200,  storage_rebate: 0, non_refundable_storage_fee: 0
+gas summary: computation_cost: 1000000, storage_cost: 12882000,  storage_rebate: 0, non_refundable_storage_fee: 0
 
 task 2 'run'. lines 89-89:
 created: object(2,0), object(2,1), object(2,2)
diff --git a/crates/sui-adapter-transactional-tests/tests/dynamic_fields/remove_add_back_and_remove.exp b/crates/sui-adapter-transactional-tests/tests/dynamic_fields/remove_add_back_and_remove.exp
index 7971695029a800..e6bdef50bb8ade 100644
--- a/crates/sui-adapter-transactional-tests/tests/dynamic_fields/remove_add_back_and_remove.exp
+++ b/crates/sui-adapter-transactional-tests/tests/dynamic_fields/remove_add_back_and_remove.exp
@@ -6,7 +6,7 @@ A: object(0,0)
 task 1 'publish'. lines 11-52:
 created: object(1,0)
 mutated: object(0,1)
-gas summary: computation_cost: 1000000, storage_cost: 9614000,  storage_rebate: 0, non_refundable_storage_fee: 0
+gas summary: computation_cost: 1000000, storage_cost: 9576000,  storage_rebate: 0, non_refundable_storage_fee: 0
 
 task 2 'run'. lines 54-56:
 created: object(2,0)
diff --git a/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector.exp b/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector.exp
index 24ffe2dca64868..8fa8ba4228fac7 100644
--- a/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector.exp
+++ b/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector.exp
@@ -6,7 +6,7 @@ A: object(0,0)
 task 1 'publish'. lines 8-111:
 created: object(1,0)
 mutated: object(0,1)
-gas summary: computation_cost: 1000000, storage_cost: 12646400,  storage_rebate: 0, non_refundable_storage_fee: 0
+gas summary: computation_cost: 1000000, storage_cost: 12623600,  storage_rebate: 0, non_refundable_storage_fee: 0
 
 task 2 'run'. lines 113-113:
 mutated: object(0,0)
diff --git a/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector_generic.exp b/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector_generic.exp
index 127f07f2f3b55a..925d51eb3825b7 100644
--- a/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector_generic.exp
+++ b/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector_generic.exp
@@ -6,7 +6,7 @@ A: object(0,0)
 task 1 'publish'. lines 8-110:
 created: object(1,0)
 mutated: object(0,1)
-gas summary: computation_cost: 1000000, storage_cost: 13452000,  storage_rebate: 0, non_refundable_storage_fee: 0
+gas summary: computation_cost: 1000000, storage_cost: 13429200,  storage_rebate: 0, non_refundable_storage_fee: 0
 
 task 2 'run'. lines 112-112:
 created: object(2,0)
diff --git a/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector_generic_v20.exp b/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector_generic_v20.exp
index 4c0c9ec6e40522..87d75e7c9ea3aa 100644
--- a/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector_generic_v20.exp
+++ b/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector_generic_v20.exp
@@ -6,7 +6,7 @@ A: object(0,0)
 task 1 'publish'. lines 8-110:
 created: object(1,0)
 mutated: object(0,1)
-gas summary: computation_cost: 1000000, storage_cost: 13452000,  storage_rebate: 0, non_refundable_storage_fee: 0
+gas summary: computation_cost: 1000000, storage_cost: 13429200,  storage_rebate: 0, non_refundable_storage_fee: 0
 
 task 2 'run'. lines 112-112:
 created: object(2,0)
diff --git a/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector_v20.exp b/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector_v20.exp
index 2df368a33040f8..7a2adeb28e724e 100644
--- a/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector_v20.exp
+++ b/crates/sui-adapter-transactional-tests/tests/entry_points/obj_vector_v20.exp
@@ -6,7 +6,7 @@ A: object(0,0)
 task 1 'publish'. lines 8-111:
 created: object(1,0)
 mutated: object(0,1)
-gas summary: computation_cost: 1000000, storage_cost: 12646400,  storage_rebate: 0, non_refundable_storage_fee: 0
+gas summary: computation_cost: 1000000, storage_cost: 12623600,  storage_rebate: 0, non_refundable_storage_fee: 0
 
 task 2 'run'. lines 113-113:
 mutated: object(0,0)
diff --git a/crates/sui-adapter-transactional-tests/tests/size_limits/event_limits_tests.exp b/crates/sui-adapter-transactional-tests/tests/size_limits/event_limits_tests.exp
index 8cfd8264693b75..c62da0d4cdd230 100644
--- a/crates/sui-adapter-transactional-tests/tests/size_limits/event_limits_tests.exp
+++ b/crates/sui-adapter-transactional-tests/tests/size_limits/event_limits_tests.exp
@@ -3,7 +3,7 @@ processed 10 tasks
 task 1 'publish'. lines 8-55:
 created: object(1,0)
 mutated: object(0,0)
-gas summary: computation_cost: 1000000, storage_cost: 7311200,  storage_rebate: 0, non_refundable_storage_fee: 0
+gas summary: computation_cost: 1000000, storage_cost: 7303600,  storage_rebate: 0, non_refundable_storage_fee: 0
 
 task 2 'run'. lines 56-58:
 events: 1
diff --git a/crates/sui-adapter-transactional-tests/tests/size_limits/event_limits_tests_out_of_gas.exp b/crates/sui-adapter-transactional-tests/tests/size_limits/event_limits_tests_out_of_gas.exp
index 780bdae769ffcc..a0263ebcfc433d 100644
--- a/crates/sui-adapter-transactional-tests/tests/size_limits/event_limits_tests_out_of_gas.exp
+++ b/crates/sui-adapter-transactional-tests/tests/size_limits/event_limits_tests_out_of_gas.exp
@@ -3,7 +3,7 @@ processed 6 tasks
 task 1 'publish'. lines 8-66:
 created: object(1,0)
 mutated: object(0,0)
-gas summary: computation_cost: 1000000, storage_cost: 7919200,  storage_rebate: 0, non_refundable_storage_fee: 0
+gas summary: computation_cost: 1000000, storage_cost: 7911600,  storage_rebate: 0, non_refundable_storage_fee: 0
 
 task 2 'run'. lines 67-69:
 Error: Transaction Effects Status: Move Primitive Runtime Error. Location: sui::event::emit (function index 0) at offset 0. Arithmetic error, stack overflow, max value depth, etc.
diff --git a/crates/sui-adapter-transactional-tests/tests/size_limits/move_object_size_limit.exp b/crates/sui-adapter-transactional-tests/tests/size_limits/move_object_size_limit.exp
index 20ded1ec45f380..1422e43aa16b7d 100644
--- a/crates/sui-adapter-transactional-tests/tests/size_limits/move_object_size_limit.exp
+++ b/crates/sui-adapter-transactional-tests/tests/size_limits/move_object_size_limit.exp
@@ -6,7 +6,7 @@ A: object(0,0)
 task 1 'publish'. lines 8-78:
 created: object(1,0)
 mutated: object(0,1)
-gas summary: computation_cost: 1000000, storage_cost: 9933200,  storage_rebate: 0, non_refundable_storage_fee: 0
+gas summary: computation_cost: 1000000, storage_cost: 9925600,  storage_rebate: 0, non_refundable_storage_fee: 0
 
 task 2 'run'. lines 79-81:
 Error: Transaction Effects Status: Move object with size 256001 is larger than the maximum object size 256000
diff --git a/crates/sui-protocol-config/src/lib.rs b/crates/sui-protocol-config/src/lib.rs
index e7217d899400b8..8e144ca88a8471 100644
--- a/crates/sui-protocol-config/src/lib.rs
+++ b/crates/sui-protocol-config/src/lib.rs
@@ -147,6 +147,7 @@ const MAX_PROTOCOL_VERSION: u64 = 51;
 //             Prepose consensus commit prologue in checkpoints.
 //             Set number of leaders per round for Mysticeti commits.
 // Version 51: Switch to DKG V1.
+// Version 52: Bump to allow variable coalescing optimization.
 
 #[derive(Copy, Clone, Debug, Hash, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
 pub struct ProtocolVersion(u64);
@@ -2431,6 +2432,7 @@ impl ProtocolConfig {
                         cfg.feature_flags.enable_coin_deny_list_v2 = true;
                     }
                 }
+                52 => {}
                 // Use this template when making changes:
                 //
                 //     // modify an existing constant.