diff --git a/benchmark/latest_versions_snapshot.json b/benchmark/latest_versions_snapshot.json
new file mode 100644
index 00000000..f1e2aee5
--- /dev/null
+++ b/benchmark/latest_versions_snapshot.json
@@ -0,0 +1,78 @@
+{
+  "generated_at": "2026-09-30",
+  "source": "yul scan (each ecosystem's own live resolver, via a synthetic manifest seeding all 60 target packages as an exact pin, run_case_opencode_deepseek.sh-independent)",
+  "ecosystems": {
+    "maven": {
+      "junit:junit": "4.13.2",
+      "org.springframework.boot:spring-boot-starter-test": "4.1.1",
+      "org.springframework.boot:spring-boot-starter-web": "4.1.1",
+      "mysql:mysql-connector-java": "8.0.33",
+      "org.projectlombok:lombok": "1.18.48",
+      "org.springframework.boot:spring-boot-starter-data-jpa": "4.1.1",
+      "org.slf4j:slf4j-api": "2.0.20",
+      "com.google.code.gson:gson": "2.14.0",
+      "org.jetbrains.kotlin:kotlin-stdlib-jdk7": "2.4.20",
+      "com.h2database:h2": "2.5.252"
+    },
+    "pypi": {
+      "requests": "2.34.2",
+      "six": "1.17.0",
+      "numpy": "2.5.3",
+      "pytz": "2026.4",
+      "urllib3": "2.8.0",
+      "certifi": "2026.7.22",
+      "idna": "3.20",
+      "python-dateutil": "2.9.0",
+      "click": "8.5.0",
+      "pandas": "3.0.6"
+    },
+    "cargo": {
+      "libc": "0.2.189",
+      "cfg-if": "1.0.5",
+      "winapi": "0.3.9",
+      "quote": "1.0.47",
+      "syn": "3.0.6",
+      "proc-macro2": "1.0.107",
+      "bitflags": "2.13.2",
+      "lazy_static": "1.5.0",
+      "winapi-x86_64-pc-windows-gnu": "0.4.0",
+      "winapi-i686-pc-windows-gnu": "0.4.0"
+    },
+    "npm": {
+      "supports-color": "11.0.0",
+      "fs.realpath": "1.0.0",
+      "fill-range": "7.1.1",
+      "to-regex-range": "5.0.1",
+      "fsevents": "2.3.3",
+      "resolve": "1.22.12",
+      "statuses": "2.0.2",
+      "setprototypeof": "1.2.0",
+      "unpipe": "1.0.0",
+      "fresh": "0.5.2"
+    },
+    "go": {
+      "golang.org/x/sys": "v0.48.0",
+      "github.com/pmezard/go-difflib": "v1.0.0",
+      "github.com/davecgh/go-spew": "v1.1.1",
+      "golang.org/x/text": "v0.42.0",
+      "github.com/stretchr/testify": "v1.12.1",
+      "golang.org/x/net": "v0.59.0",
+      "gopkg.in/check.v1": "v1.0.0-20201130134442-10cb98267c6c",
+      "golang.org/x/crypto": "v0.57.0",
+      "github.com/stretchr/objx": "v0.5.3",
+      "golang.org/x/tools": "v0.50.0"
+    },
+    "githubactions": {
+      "actions/checkout": "3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1",
+      "actions/setup-node": "820762786026740c76f36085b0efc47a31fe5020  # v7.0.0",
+      "actions/upload-artifact": "043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1",
+      "actions/setup-python": "5fda3b95a4ea91299a34e894583c3862153e4b97  # v7.0.0",
+      "actions/cache": "55cc8345863c7cc4c66a329aec7e433d2d1c52a9  # v6.1.0",
+      "actions/setup-java": "de7274f081f381c8f8158605e0321c36c376e2e6  # v6.0.1",
+      "docker/login-action": "dbcb813823bdd20940b903addbd779551569679f  # v4.6.0",
+      "actions/download-artifact": "3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8.0.1",
+      "docker/setup-buildx-action": "f87e5991a6d7451dcb8d9637bfbc97413f497069  # v4.4.1",
+      "docker/build-push-action": "c3c9e263c25d99ce0380d002d59b67737d91b0dc  # v7.4.0"
+    }
+  }
+}
\ No newline at end of file