diff --git a/pkgs/params/CHANGELOG.md b/pkgs/params/CHANGELOG.md
index 89ee5bcf0..c17db652a 100644
--- a/pkgs/params/CHANGELOG.md
+++ b/pkgs/params/CHANGELOG.md
@@ -8,3 +8,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 ## [Unreleased]
 
 - Initial release.
+
+### Changed
+
+- **`ChainParams` drops the runtime-policy fields** `prune_after_height`, `assumed_blockchain_size_gb`,
+  `assumed_chain_state_size_gb`, `default_consistency_checks` and `is_mockable_chain`.
diff --git a/pkgs/params/corpus/chainparams.json5 b/pkgs/params/corpus/chainparams.json5
index f62551627..f3a92479d 100644
--- a/pkgs/params/corpus/chainparams.json5
+++ b/pkgs/params/corpus/chainparams.json5
@@ -1,6 +1,6 @@
 //
 // Chain parameter vectors. Generated with the reference implementation
-// (dashpay/dash v24.0.0-rc.3, 0364ed626e).
+// (dashpay/dash v24.0.0-rc.5, 8163290aa0).
 //
 // Each entry is the output of the command above it, keyed by chain. The node
 // of each chain runs with an empty data directory and no connections, so it
@@ -143,6 +143,32 @@
           "type": "buried",
           "active": false,
           "height": 2201472
+        },
+        "v24": {
+          "type": "bip9",
+          "active": false,
+          "bip9": {
+            "start_time": 1794182400,
+            "timeout": 1857340800,
+            "ehf": true,
+            "min_activation_height": 0,
+            "status": "defined",
+            "since": 0,
+            "status_next": "defined"
+          }
+        },
+        "evo_shares": {
+          "type": "bip9",
+          "active": false,
+          "bip9": {
+            "start_time": 1794182400,
+            "timeout": 1857340800,
+            "ehf": true,
+            "min_activation_height": 0,
+            "status": "defined",
+            "since": 0,
+            "status_next": "defined"
+          }
         }
       }
     },
diff --git a/pkgs/params/src/chain.rs b/pkgs/params/src/chain.rs
index 6695126e6..36a143433 100644
--- a/pkgs/params/src/chain.rs
+++ b/pkgs/params/src/chain.rs
@@ -46,12 +46,6 @@ pub struct ChainParams {
   pub rpc_port: u16,
   /// Tor onion service target port.
   pub onion_service_target_port: u16,
-  /// Height after which pruning may discard blocks.
-  pub prune_after_height: u64,
-  /// Estimated full blockchain size in gigabytes.
-  pub assumed_blockchain_size_gb: u64,
-  /// Estimated chain-state size in gigabytes.
-  pub assumed_chain_state_size_gb: u64,
   /// DNS seed hostnames for peer discovery.
   pub dns_seeds: &'static [&'static str],
   /// Address encoding parameters.
@@ -60,10 +54,6 @@ pub struct ChainParams {
   pub network_id: &'static str,
   /// Whether this is a test network.
   pub is_test_chain: bool,
-  /// Whether internal consistency checks run by default.
-  pub default_consistency_checks: bool,
-  /// Whether the chain allows mock time and state.
-  pub is_mockable_chain: bool,
   /// Minimum participants for a CoinJoin session.
   pub pool_min_participants: i32,
   /// Maximum participants for a CoinJoin session.
diff --git a/pkgs/params/src/params/mainnet.rs b/pkgs/params/src/params/mainnet.rs
index 56cc9153e..f756c5e32 100644
--- a/pkgs/params/src/params/mainnet.rs
+++ b/pkgs/params/src/params/mainnet.rs
@@ -76,8 +76,8 @@ pub static PARAMS: ChainParams = ChainParams {
       },
       v24: Bip9Deployment {
         bit: 13,
-        start_time: Bip9Deployment::NEVER_ACTIVE,
-        timeout: Bip9Deployment::NO_TIMEOUT,
+        start_time: 1_794_182_400, // 9 November 2026, midnight UTC
+        timeout: 1_857_340_800,    // 9 November 2028, midnight UTC
         min_activation_height: BlockHeight::from_u32(0),
         window_size: 4032,
         threshold_start: 3226, // 80% of 4032
@@ -87,8 +87,8 @@ pub static PARAMS: ChainParams = ChainParams {
       },
       evo_shares: Bip9Deployment {
         bit: 14,
-        start_time: Bip9Deployment::NEVER_ACTIVE,
-        timeout: Bip9Deployment::NO_TIMEOUT,
+        start_time: 1_794_182_400, // 9 November 2026, midnight UTC
+        timeout: 1_857_340_800,    // 9 November 2028, midnight UTC
         min_activation_height: BlockHeight::from_u32(0),
         window_size: 4032,
         threshold_start: 3226, // 80% of 4032
@@ -105,10 +105,10 @@ pub static PARAMS: ChainParams = ChainParams {
     pow_kgw_height: BlockHeight::from_u32(15_200),
     pow_dgw_height: BlockHeight::from_u32(34_140),
     minimum_chain_work: Arith256::from_bendian(hex!(
-      "00000000000000000000000000000000000000000000ba7225adc3153945d14d"
+      "00000000000000000000000000000000000000000000c15981a81af44a6abe1a"
     )),
     default_assume_valid: Hash256::from_bendian(hex!(
-      "00000000000000119fe42827219e0686d3f7b494ae65f823194c740c5dbab492"
+      "000000000000000346a1804da4832b0b69dd9a7f96b14c7cb54585a9ac6ae98f"
     )),
     llmqs: &[
       LlmqType::Llmq50_60,
@@ -137,9 +137,6 @@ pub static PARAMS: ChainParams = ChainParams {
   default_platform_http_port: 443,
   rpc_port: 9998,
   onion_service_target_port: 9996,
-  prune_after_height: 100_000,
-  assumed_blockchain_size_gb: 57,
-  assumed_chain_state_size_gb: 1,
   dns_seeds: &["dnsseed.dash.org."],
   addr_params: AddrParams {
     pubkey_addr: 76,                      // addresses start with 'X'
@@ -152,22 +149,20 @@ pub static PARAMS: ChainParams = ChainParams {
   },
   network_id: "main",
   is_test_chain: false,
-  default_consistency_checks: false,
-  is_mockable_chain: false,
   pool_min_participants: 3,
   pool_max_participants: 20,
   spork_address: "Xgtyuk76vhuFW2iT7UAiHgNdWXCf3J34wh",
   credit_pool_period_blocks: 576,
   checkpoints: &CHECKPOINTS,
   chain_tx_data: ChainTxData {
-    timestamp: 1_781_318_234,
-    tx_count: 69_770_814,
-    tx_rate: 0.1569520632249578,
+    timestamp: 1_793_218_693,
+    tx_count: 71_411_418,
+    tx_rate: 0.1306891420721072,
   },
 };
 
 #[rustfmt::skip]
-const CHECKPOINTS: [Checkpoint; 39] = [
+const CHECKPOINTS: [Checkpoint; 40] = [
   (BlockHeight::from_u32(   1_500), Hash256::from_bendian(hex!("000000aaf0300f59f49bc3e970bad15c11f961fe2347accffff19d96ec9778e3"))),
   (BlockHeight::from_u32(   4_991), Hash256::from_bendian(hex!("000000003b01809551952460744d5dbb8fcbd6cbae3c220267bf7fa43f837367"))),
   (BlockHeight::from_u32(   9_918), Hash256::from_bendian(hex!("00000000213e229f332c0ffbe34defdaa9e74de87f2d8d1f01af8d121c3c170b"))),
@@ -207,4 +202,5 @@ const CHECKPOINTS: [Checkpoint; 39] = [
   (BlockHeight::from_u32(2_421_800), Hash256::from_bendian(hex!("000000000000000718ed026ebd644a8b70b42d4cbd7b25304c066c9bf15f85b7"))),
   (BlockHeight::from_u32(2_471_728), Hash256::from_bendian(hex!("000000000000001a19ad7270422a00f86123ea94e0b295a3a796d6861bd7b032"))),
   (BlockHeight::from_u32(2_487_500), Hash256::from_bendian(hex!("00000000000000119fe42827219e0686d3f7b494ae65f823194c740c5dbab492"))),
+  (BlockHeight::from_u32(2_563_000), Hash256::from_bendian(hex!("000000000000000346a1804da4832b0b69dd9a7f96b14c7cb54585a9ac6ae98f"))),
 ];
diff --git a/pkgs/params/src/params/regtest.rs b/pkgs/params/src/params/regtest.rs
index c7d8756af..50dc79e73 100644
--- a/pkgs/params/src/params/regtest.rs
+++ b/pkgs/params/src/params/regtest.rs
@@ -125,9 +125,6 @@ pub static PARAMS: ChainParams = ChainParams {
   default_platform_http_port: 22201,
   rpc_port: 19898,
   onion_service_target_port: 19896,
-  prune_after_height: 1000,
-  assumed_blockchain_size_gb: 0,
-  assumed_chain_state_size_gb: 0,
   dns_seeds: &["dummySeed.invalid."],
   addr_params: AddrParams {
     pubkey_addr: 140,                     // addresses start with 'y'
@@ -140,8 +137,6 @@ pub static PARAMS: ChainParams = ChainParams {
   },
   network_id: "regtest",
   is_test_chain: true,
-  default_consistency_checks: true,
-  is_mockable_chain: true,
   pool_min_participants: 2,
   pool_max_participants: 20,
   spork_address: "yj949n1UH6fDhw6HtVE5VMj2iSTaSWBMcW",
diff --git a/pkgs/params/src/params/test3.rs b/pkgs/params/src/params/test3.rs
index 2e4c4a2dc..89afe413e 100644
--- a/pkgs/params/src/params/test3.rs
+++ b/pkgs/params/src/params/test3.rs
@@ -103,10 +103,10 @@ pub static PARAMS: ChainParams = ChainParams {
     pow_kgw_height: BlockHeight::from_u32(4002),
     pow_dgw_height: BlockHeight::from_u32(4002),
     minimum_chain_work: Arith256::from_bendian(hex!(
-      "000000000000000000000000000000000000000000000000036c8f738da818d2"
+      "00000000000000000000000000000000000000000000000003ed573a939487fc"
     )),
     default_assume_valid: Hash256::from_bendian(hex!(
-      "000000541a23f9db7411cddbe50f9f1ebd4aa7108ebdcad62214753f648c0239"
+      "000000116cd3c11d44c88cbc0a26804bd277a5d790f684ec3a8aaa820690318c"
     )),
     llmqs: &[
       LlmqType::Llmq50_60,
@@ -136,9 +136,6 @@ pub static PARAMS: ChainParams = ChainParams {
   default_platform_http_port: 22001,
   rpc_port: 19998,
   onion_service_target_port: 19996,
-  prune_after_height: 1000,
-  assumed_blockchain_size_gb: 10,
-  assumed_chain_state_size_gb: 1,
   dns_seeds: &["testnet-seed.dashdot.io."],
   addr_params: AddrParams {
     pubkey_addr: 140,                     // addresses start with 'y'
@@ -151,22 +148,20 @@ pub static PARAMS: ChainParams = ChainParams {
   },
   network_id: "test",
   is_test_chain: true,
-  default_consistency_checks: false,
-  is_mockable_chain: false,
   pool_min_participants: 2,
   pool_max_participants: 20,
   spork_address: "yjPtiKh2uwk3bDutTEA2q9mCtXyiZRWn55",
   credit_pool_period_blocks: 576,
   checkpoints: &CHECKPOINTS,
   chain_tx_data: ChainTxData {
-    timestamp: 1_765_334_452,
-    tx_count: 8_182_713,
-    tx_rate: 0.1796716675173412,
+    timestamp: 1_788_899_589,
+    tx_count: 8_494_561,
+    tx_rate: 0.0139463532250889,
   },
 };
 
 #[rustfmt::skip]
-const CHECKPOINTS: [Checkpoint; 19] = [
+const CHECKPOINTS: [Checkpoint; 20] = [
   (BlockHeight::from_u32(     255), Hash256::from_bendian(hex!("0000080b600e06f4c07880673f027210f9314575f5f875fafe51971e268b886a"))),
   (BlockHeight::from_u32(     261), Hash256::from_bendian(hex!("00000c26026d0815a7e2ce4fa270775f61403c040647ff2c3091f99e894a4618"))),
   (BlockHeight::from_u32(   1_999), Hash256::from_bendian(hex!("00000052e538d27fa53693efe6fb6892a0c1d26c0235f599171c48a3cce553b1"))),
@@ -186,4 +181,5 @@ const CHECKPOINTS: [Checkpoint; 19] = [
   (BlockHeight::from_u32(1_189_000), Hash256::from_bendian(hex!("000001690314036dfbbecbdf382b230ead8e9c584241290a51f9f05a87a9cf7e"))),
   (BlockHeight::from_u32(1_295_700), Hash256::from_bendian(hex!("00000107d42829a38e31c1a38c660d621e1ca376a880df1520e85e38af175d3a"))),
   (BlockHeight::from_u32(1_380_000), Hash256::from_bendian(hex!("000000a98084beaf77ed26a905a7d59979009e23367a55b5d634962d7d65a1f9"))),
+  (BlockHeight::from_u32(1_550_000), Hash256::from_bendian(hex!("000000116cd3c11d44c88cbc0a26804bd277a5d790f684ec3a8aaa820690318c"))),
 ];