diff --git a/CHANGELOG.md b/CHANGELOG.md
index e77d2ae..d5ff655 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,20 +2,25 @@
 
 ## [1.1.0] - 2026-03-19
 
-### Added
-- Canonical `{ receipt, runtime_metadata? }` response model
-- Verification targets canonical receipt
-- TypeScript and Python SDK parity
-- TypeScript CLI support
+CommandLayer SDKs now align on the Commons-first Protocol-Commons v1.1.0 surface. This release replaces the mixed 1.0.0-era documentation and response assumptions with a single canonical receipt model shared by the TypeScript SDK, Python SDK, fixtures, and verification flow.
 
-### Changed
-- Normalized response handling to wrapper model
-- Improved verification flow alignment with runtime
+### What changed from 1.0.0
+- Standardized on the canonical `{ receipt, runtime_metadata? }` wrapper and receipt-first verification flow across both SDKs.
+- Aligned TypeScript and Python behavior, fixtures, and parity checks around the same v1.1.0 receipt hashing and verification semantics.
+- Added TypeScript CLI support for the current Commons surface.
 
-### Fixed
-- No additional fixes recorded in this release note.
+### Removed
+- x402-first positioning from Commons-facing surfaces and release documentation. Commons is no longer presented as an x402-first product surface in this repo.
+- Ambiguous blended response/documentation paths that implied multiple concurrent canonical envelopes.
 
-### Notes
-- Protocol-Commons v1.1.0 is the current supported line
-- Commercial support is not yet first-class
-- SDK reflects canonical receipt-first architecture
+### Breaking changes
+- Consumers should treat the v1.1.0 wrapper and receipt shape as the only canonical public contract documented by this repository.
+- Verification guidance now assumes the canonical receipt payload and current signer-discovery flow; integrations built around older mixed envelopes should update.
+
+### Non-breaking improvements
+- Improved cross-SDK parity coverage for hashing, signature verification, and signer resolution behavior.
+- Clearer release alignment: Protocol-Commons v1.1.0 is the supported line for this repository and its published SDK packages.
+
+### Known limitations / scope
+- This repository is Commons-first and does not claim first-class commercial or x402 runtime coverage.
+- The SDKs may still normalize some older blended runtime responses for compatibility, but those compatibility paths are not the canonical contract.
diff --git a/python-sdk/tests/test_verify.py b/python-sdk/tests/test_verify.py
index d0c742d..c8d856d 100644
--- a/python-sdk/tests/test_verify.py
+++ b/python-sdk/tests/test_verify.py
@@ -26,8 +26,8 @@ def _signed_receipt() -> tuple[dict[str, object], str]:
         "status": "success",
         "x402": {
             "verb": "summarize",
-            "version": "1.0.0",
-            "entry": "x402://summarizeagent.eth/summarize/v1.0.0",
+            "version": "1.1.0",
+            "entry": "x402://summarizeagent.eth/summarize/v1.1.0",
         },
         "metadata": {
             "proof": {
diff --git a/test_vectors/README.md b/test_vectors/README.md
index 987c6ba..70a50e0 100644
--- a/test_vectors/README.md
+++ b/test_vectors/README.md
@@ -7,7 +7,7 @@ This directory contains shared receipt fixtures used by both SDKs and the parity
 - `receipt_valid.json` — canonical valid receipt fixture.
 - `receipt_valid_v1.json` — additional valid receipt fixture used for version compatibility checks.
 - `receipt_invalid_sig.json` — receipt fixture with an invalid signature.
-- `receipt_wrong_kid.json` — receipt fixture whose `kid` drifts but still verifies with an explicit public key.
+- `receipt_wrong_kid.json` — receipt fixture expected to fail verification after `kid` mutation changes the signed content.
 - `receipt_malformed_pubkey.json` — receipt fixture paired with malformed ENS signer metadata scenarios.
 - `public_key_base64.txt` — shared Ed25519 public key for explicit-key verification.
 - `expected_hash.txt` — expected SHA-256 hash for canonical receipt hashing.
diff --git a/typescript-sdk/scripts/unit-tests.mjs b/typescript-sdk/scripts/unit-tests.mjs
index 4ee8b3f..7a1094c 100644
--- a/typescript-sdk/scripts/unit-tests.mjs
+++ b/typescript-sdk/scripts/unit-tests.mjs
@@ -196,7 +196,7 @@ await assertRejects(
 
 const receipt = {
   status: "success",
-  x402: { verb: "summarize", version: "1.0.0", entry: "x402://summarizeagent.eth/summarize/v1.0.0" },
+  x402: { verb: "summarize", version: "1.1.0", entry: "x402://summarizeagent.eth/summarize/v1.1.0" },
   result: { summary: "test" },
   metadata: {
     proof: {