diff --git a/Cargo.lock b/Cargo.lock
index 383e1188..bbf2d61b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -126,6 +126,21 @@ dependencies = [
  "thiserror",
 ]
 
+[[package]]
+name = "async-compression"
+version = "0.4.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ddb939d66e4ae03cee6091612804ba446b12878410cfa17f785f4dd67d4014e8"
+dependencies = [
+ "flate2",
+ "futures-core",
+ "memchr",
+ "pin-project-lite",
+ "tokio",
+ "zstd",
+ "zstd-safe",
+]
+
 [[package]]
 name = "async-stream"
 version = "0.3.5"
@@ -371,6 +386,8 @@ version = "1.2.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "04da6a0d40b948dfc4fa8f5bbf402b0fc1a64a28dbf7d12ffd683550f2c1b63a"
 dependencies = [
+ "jobserver",
+ "libc",
  "shlex",
 ]
 
@@ -1570,6 +1587,15 @@ version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "49f1f14873335454500d59611f1cf4a4b0f786f9ac11f4312a78e4cf2566695b"
 
+[[package]]
+name = "jobserver"
+version = "0.1.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "48d1dbcbbeb6a7fec7e059840aa538bd62aaccf972c7346c4d9d2059312853d0"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "js-sys"
 version = "0.3.69"
@@ -1952,8 +1978,8 @@ dependencies = [
 
 [[package]]
 name = "ndc-models"
-version = "0.2.0"
-source = "git+http://github.com/hasura/ndc-spec.git?tag=v0.2.0#e25213f51a7e8422d712509d63ae012c67b4f3f1"
+version = "0.2.4"
+source = "git+http://github.com/hasura/ndc-spec.git?tag=v0.2.4#df67fa6469431f9304aac9c237e9d2327d20da20"
 dependencies = [
  "indexmap 2.2.6",
  "ref-cast",
@@ -1986,8 +2012,8 @@ dependencies = [
 
 [[package]]
 name = "ndc-sdk"
-version = "0.6.0"
-source = "git+https://github.com/hasura/ndc-sdk-rs.git?rev=v0.6.0#f8db8bff28c42f7da317a2336808bb7149408205"
+version = "0.8.0"
+source = "git+https://github.com/hasura/ndc-sdk-rs.git?rev=v0.8.0#0c93ded023767c8402ace015aff5023115d8dcb6"
 dependencies = [
  "async-trait",
  "axum",
@@ -2018,8 +2044,8 @@ dependencies = [
 
 [[package]]
 name = "ndc-sdk-core"
-version = "0.6.0"
-source = "git+https://github.com/hasura/ndc-sdk-rs.git?rev=v0.6.0#f8db8bff28c42f7da317a2336808bb7149408205"
+version = "0.8.0"
+source = "git+https://github.com/hasura/ndc-sdk-rs.git?rev=v0.8.0#0c93ded023767c8402ace015aff5023115d8dcb6"
 dependencies = [
  "async-trait",
  "axum",
@@ -2038,14 +2064,15 @@ dependencies = [
 
 [[package]]
 name = "ndc-test"
-version = "0.2.0"
-source = "git+http://github.com/hasura/ndc-spec.git?tag=v0.2.0#e25213f51a7e8422d712509d63ae012c67b4f3f1"
+version = "0.2.4"
+source = "git+http://github.com/hasura/ndc-spec.git?tag=v0.2.4#df67fa6469431f9304aac9c237e9d2327d20da20"
 dependencies = [
  "async-trait",
  "clap",
  "colorful",
  "indexmap 2.2.6",
  "ndc-models",
+ "pretty_assertions",
  "rand",
  "reqwest 0.12.4",
  "semver",
@@ -2053,6 +2080,7 @@ dependencies = [
  "serde_json",
  "thiserror",
  "tokio",
+ "url",
 ]
 
 [[package]]
@@ -2430,9 +2458,9 @@ dependencies = [
 
 [[package]]
 name = "pretty_assertions"
-version = "1.4.0"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af7cee1a6c8a5b9208b3cb1061f10c0cb689087b3d8ce85fb9d2dd7a29b6ba66"
+checksum = "3ae130e2f271fbc2ac3a40fb1d07180839cdbbe443c7a27e1e3c13c5cac0116d"
 dependencies = [
  "diff",
  "yansi",
@@ -3593,6 +3621,7 @@ version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "61c5bb1d698276a2443e5ecfabc1008bf15a36c12e6a7176e7bf089ea9131140"
 dependencies = [
+ "async-compression",
  "bitflags 2.5.0",
  "bytes",
  "futures-core",
@@ -3602,6 +3631,8 @@ dependencies = [
  "http-range-header",
  "mime",
  "pin-project-lite",
+ "tokio",
+ "tokio-util",
  "tower-layer",
  "tower-service",
  "tracing",
@@ -4232,9 +4263,9 @@ dependencies = [
 
 [[package]]
 name = "yansi"
-version = "0.5.1"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09041cd90cf85f7f8b2df60c646f853b7f535ce68f85244eb6731cf89fa498ec"
+checksum = "cfe53a6657fd280eaa890a3bc59152892ffa3e30101319d168b781ed6529b049"
 
 [[package]]
 name = "yoke"
@@ -4328,3 +4359,31 @@ dependencies = [
  "quote",
  "syn 2.0.66",
 ]
+
+[[package]]
+name = "zstd"
+version = "0.13.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e91ee311a569c327171651566e07972200e76fcfe2242a4fa446149a3881c08a"
+dependencies = [
+ "zstd-safe",
+]
+
+[[package]]
+name = "zstd-safe"
+version = "7.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f49c4d5f0abb602a93fb8736af2a4f4dd9512e36f7f570d66e65ff867ed3b9d"
+dependencies = [
+ "zstd-sys",
+]
+
+[[package]]
+name = "zstd-sys"
+version = "2.0.15+zstd.1.5.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eb81183ddd97d0c74cedf1d50d85c8d08c1b8b68ee863bdee9e706eedba1a237"
+dependencies = [
+ "cc",
+ "pkg-config",
+]
diff --git a/Cargo.toml b/Cargo.toml
index 4d733e8d..6300b317 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,8 +18,8 @@ resolver = "2"
 # The tag or rev of ndc-models must match the locked tag or rev of the
 # ndc-models dependency of ndc-sdk
 [workspace.dependencies]
-ndc-sdk = { git = "https://github.com/hasura/ndc-sdk-rs.git", rev = "v0.6.0" }
-ndc-models = { git = "http://github.com/hasura/ndc-spec.git", tag = "v0.2.0" }
+ndc-sdk = { git = "https://github.com/hasura/ndc-sdk-rs.git", rev = "v0.8.0" }
+ndc-models = { git = "http://github.com/hasura/ndc-spec.git", tag = "v0.2.4" }
 
 indexmap = { version = "2", features = [
   "serde",
diff --git a/crates/cli/Cargo.toml b/crates/cli/Cargo.toml
index 97078af1..64d1b3ce 100644
--- a/crates/cli/Cargo.toml
+++ b/crates/cli/Cargo.toml
@@ -38,7 +38,7 @@ mongodb-agent-common = { path = "../mongodb-agent-common", features = ["test-hel
 
 async-tempfile = "^0.6.0"
 googletest = "^0.13.0"
-pretty_assertions = "1"
+pretty_assertions = "1.4"
 proptest = "1"
 ndc-test-helpers = { path = "../ndc-test-helpers" }
 test-helpers = { path = "../test-helpers" }
diff --git a/crates/configuration/src/configuration.rs b/crates/configuration/src/configuration.rs
index c5007639..57291713 100644
--- a/crates/configuration/src/configuration.rs
+++ b/crates/configuration/src/configuration.rs
@@ -297,6 +297,7 @@ fn collection_to_collection_info(
         description: collection.description,
         arguments: Default::default(),
         uniqueness_constraints: BTreeMap::from_iter(pk_constraint),
+        relational_mutations: None,
     }
 }
 
@@ -318,6 +319,7 @@ fn native_query_to_collection_info(
         description: native_query.description.clone(),
         arguments: arguments_to_ndc_arguments(native_query.arguments.clone()),
         uniqueness_constraints: BTreeMap::from_iter(pk_constraint),
+        relational_mutations: None,
     }
 }
 
diff --git a/crates/mongodb-agent-common/Cargo.toml b/crates/mongodb-agent-common/Cargo.toml
index 639d00ef..900e3979 100644
--- a/crates/mongodb-agent-common/Cargo.toml
+++ b/crates/mongodb-agent-common/Cargo.toml
@@ -30,7 +30,7 @@ mongodb = { workspace = true }
 ndc-models = { workspace = true }
 nonempty = { workspace = true }
 once_cell = "1"
-pretty_assertions = { version = "1", optional = true }
+pretty_assertions = { version = "1.4", optional = true }
 regex = "1"
 schemars = { version = "^0.8.12", features = ["smol_str"] }
 serde = { workspace = true }
@@ -46,6 +46,6 @@ ndc-test-helpers = { path = "../ndc-test-helpers" }
 test-helpers = { path = "../test-helpers" }
 
 mockall = "^0.13.1"
-pretty_assertions = "1"
+pretty_assertions = "1.4"
 proptest = "1"
 tokio = { version = "1", features = ["full"] }
diff --git a/crates/mongodb-agent-common/src/test_helpers.rs b/crates/mongodb-agent-common/src/test_helpers.rs
index 38f31651..c265c915 100644
--- a/crates/mongodb-agent-common/src/test_helpers.rs
+++ b/crates/mongodb-agent-common/src/test_helpers.rs
@@ -20,6 +20,7 @@ pub fn make_nested_schema() -> MongoConfiguration {
                     collection_type: "Author".into(),
                     arguments: Default::default(),
                     uniqueness_constraints: make_primary_key_uniqueness_constraint("authors"),
+                    relational_mutations: None,
                 },
             ),
             collection("appearances"), // new helper gives more concise syntax
diff --git a/crates/mongodb-connector/Cargo.toml b/crates/mongodb-connector/Cargo.toml
index 26c0ec6e..8cfb001f 100644
--- a/crates/mongodb-connector/Cargo.toml
+++ b/crates/mongodb-connector/Cargo.toml
@@ -27,4 +27,4 @@ tracing = "0.1"
 
 [dev-dependencies]
 ndc-test-helpers = { path = "../ndc-test-helpers" }
-pretty_assertions = "1"
+pretty_assertions = "1.4"
diff --git a/crates/mongodb-connector/src/capabilities.rs b/crates/mongodb-connector/src/capabilities.rs
index 6e7a5724..ce739614 100644
--- a/crates/mongodb-connector/src/capabilities.rs
+++ b/crates/mongodb-connector/src/capabilities.rs
@@ -44,5 +44,7 @@ pub fn mongo_capabilities() -> Capabilities {
             order_by_aggregate: None,
             nested: None, // TODO: ENG-1490
         }),
+        relational_mutation: None,
+        relational_query: None,
     }
 }
diff --git a/crates/mongodb-connector/src/mongo_connector.rs b/crates/mongodb-connector/src/mongo_connector.rs
index 648b5548..41ffd845 100644
--- a/crates/mongodb-connector/src/mongo_connector.rs
+++ b/crates/mongodb-connector/src/mongo_connector.rs
@@ -67,6 +67,14 @@ impl Connector for MongoConnector {
     type Configuration = MongoConfiguration;
     type State = ConnectorState;
 
+    fn connector_name() -> &'static str {
+        "ndc_mongodb"
+    }
+
+    fn connector_version() -> &'static str {
+        env!("CARGO_PKG_VERSION")
+    }
+
     #[instrument(err, skip_all)]
     fn fetch_metrics(
         _configuration: &Self::Configuration,
diff --git a/crates/mongodb-connector/src/schema.rs b/crates/mongodb-connector/src/schema.rs
index 6dc867cf..6e6add5c 100644
--- a/crates/mongodb-connector/src/schema.rs
+++ b/crates/mongodb-connector/src/schema.rs
@@ -28,6 +28,7 @@ pub async fn get_schema(config: &MongoConfiguration) -> connector::Result<ndc::S
                 }),
             }),
         }),
+        request_arguments: None,
     };
     tracing::debug!(schema = %serde_json::to_string(&schema).unwrap(), "get_schema");
     Ok(schema)
diff --git a/crates/ndc-query-plan/Cargo.toml b/crates/ndc-query-plan/Cargo.toml
index 63ab6865..66d42939 100644
--- a/crates/ndc-query-plan/Cargo.toml
+++ b/crates/ndc-query-plan/Cargo.toml
@@ -20,4 +20,4 @@ ndc-test-helpers = { path = "../ndc-test-helpers" }
 anyhow = "1"
 enum-iterator = "2"
 lazy_static = "1"
-pretty_assertions = "1"
+pretty_assertions = "1.4"
diff --git a/crates/ndc-query-plan/src/plan_for_query_request/plan_test_helpers/mod.rs b/crates/ndc-query-plan/src/plan_for_query_request/plan_test_helpers/mod.rs
index e0c5b873..78562b1a 100644
--- a/crates/ndc-query-plan/src/plan_for_query_request/plan_test_helpers/mod.rs
+++ b/crates/ndc-query-plan/src/plan_for_query_request/plan_test_helpers/mod.rs
@@ -255,6 +255,7 @@ pub fn make_flat_schema() -> TestContext {
                     collection_type: "Author".into(),
                     arguments: Default::default(),
                     uniqueness_constraints: make_primary_key_uniqueness_constraint("authors"),
+                    relational_mutations: None,
                 },
             ),
             (
@@ -265,6 +266,7 @@ pub fn make_flat_schema() -> TestContext {
                     collection_type: "Article".into(),
                     arguments: Default::default(),
                     uniqueness_constraints: make_primary_key_uniqueness_constraint("articles"),
+                    relational_mutations: None,
                 },
             ),
         ]),
@@ -301,6 +303,7 @@ pub fn make_nested_schema() -> TestContext {
                     collection_type: "Author".into(),
                     arguments: Default::default(),
                     uniqueness_constraints: make_primary_key_uniqueness_constraint("authors"),
+                    relational_mutations: None,
                 },
             ),
             collection("appearances"), // new helper gives more concise syntax
diff --git a/crates/ndc-test-helpers/src/collection_info.rs b/crates/ndc-test-helpers/src/collection_info.rs
index 040a8694..0862f85a 100644
--- a/crates/ndc-test-helpers/src/collection_info.rs
+++ b/crates/ndc-test-helpers/src/collection_info.rs
@@ -9,6 +9,7 @@ pub fn collection(name: impl Display + Clone) -> (ndc_models::CollectionName, Co
         arguments: Default::default(),
         collection_type: name.to_string().into(),
         uniqueness_constraints: make_primary_key_uniqueness_constraint(name.clone()),
+        relational_mutations: None,
     };
     (name.to_string().into(), coll)
 }
diff --git a/crates/ndc-test-helpers/src/lib.rs b/crates/ndc-test-helpers/src/lib.rs
index 1d79d525..8843b3c5 100644
--- a/crates/ndc-test-helpers/src/lib.rs
+++ b/crates/ndc-test-helpers/src/lib.rs
@@ -135,6 +135,7 @@ impl From<QueryRequestBuilder> for QueryRequest {
             arguments: value.arguments.unwrap_or_default(),
             collection_relationships: value.collection_relationships.unwrap_or_default(),
             variables: value.variables,
+            request_arguments: None,
         }
     }
 }