diff --git a/CHANGELOG.md b/CHANGELOG.md
index c04cba3..18f498e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,46 @@ The format follows [Keep a Changelog](https://keepachangelog.com/1.1.0/) and thi
 adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html) — with the caveat
 that the public API is not frozen until `1.0.0`. Pin an exact version.
 
+## [0.1.3]
+
+An additive release. No packing request/result field or solver algorithm changed.
+
+### Added
+
+- **First-party carrier connectors for UPS, FedEx, DHL Express and USPS**, and a live
+  rate-card contract behind them. Connectors prepare ordinary rate-table data before a
+  deterministic solve; no network call, clock or carrier module enters a packing engine.
+  A rate card records which tariff version priced a quote and when it was fetched, and a
+  card that has gone stale is refused rather than served.
+
+### Fixed
+
+- **`@packvium/browser` now works under Node**, not only in a browser. The WebAssembly
+  loader generated for the `web` target fetches its own `.wasm` from a `file:` URL, which
+  Node's `fetch` refuses — so server-side rendering, a Vitest node environment and
+  `node --test` failed at initialization on 0.1.1 and 0.1.2. The package now selects a
+  Node entry point that reads the module off disk. Browser behaviour is unchanged.
+- **The PHP package's compatibility tree could not autoload a class on old PHP.** Its
+  entry point was the one shipped file the downgrade did not process, and it used a PHP 8
+  function to match the namespace prefix. Three of its solver files also could not be
+  parsed by PHP 8.0 or 8.1, which that tree also serves. Both are fixed, and the tree is
+  installed and loaded on 7.3, 7.4, 8.0 and 8.1 before release.
+- **The compatibility tree did not place items where the canonical engine does on PHP 7.**
+  Several solver comparators were partial and relied on `usort` being stable, which PHP
+  guarantees only from 8.0, so three shared fixtures came back with a different rotation
+  chosen. The tie-breaking is explicit now — identical results on every supported version —
+  and no released package ever carried it, because none was installable below 8.2.
+
+### Changed
+
+- **`packvium/packvium` now requires `php: >=7.3` instead of `>=8.2`.** One package
+  carries both the canonical PHP 8.2+ source and a generated `src-legacy/` tree, and its
+  `autoload.php` selects by `PHP_VERSION_ID`; PHP parses only what it loads.
+  `composer require packvium/packvium` is the right command on 7.3 through 8.5, and every
+  one of those versions is held to the same committed placement results. Nothing changes
+  for an 8.2+ consumer: the same files load, under the same names.
+- Every package's `homepage` now points at <https://packvium.com>.
+
 ## [0.1.2]
 
 An additive documentation and integration release. No packing request/result field or
diff --git a/README.md b/README.md
index 6a317da..2bcd108 100644
--- a/README.md
+++ b/README.md
@@ -126,6 +126,9 @@ One request and result contract, implemented independently in four engines (Rust
 Python, PHP, JavaScript) and held to identical placements on a shared fixture set.
 Pick the package for your stack; mixing them in one system is safe.
 
+Documentation, the constraint reference and the benchmarks are at
+[packvium.com](https://packvium.com).
+
 | Package | Install | Source |
 | --- | --- | --- |
 | Python — [`packvium`](https://pypi.org/project/packvium/) | `pip install packvium` | [packvium-python](https://github.com/toxakara/packvium-python) |
diff --git a/docs/GUARANTEES.md b/docs/GUARANTEES.md
index 499404a..af5efb3 100644
--- a/docs/GUARANTEES.md
+++ b/docs/GUARANTEES.md
@@ -48,7 +48,7 @@ silently — if you need them, they belong in your own layer above this library.
 
 ## Status of this release
 
-Version `0.1.2` is an early release. The public API is not yet frozen: field names,
+Version `0.1.3` is an early release. The public API is not yet frozen: field names,
 status codes and the objective vector may change before `1.0.0`. Pin an exact version.
 
 The algorithm complexities documented in `ALGORITHMS-AND-COMPLEXITY.md` are design
diff --git a/index.js b/index.js
index 44cef6b..a4cee21 100644
--- a/index.js
+++ b/index.js
@@ -29,7 +29,7 @@ export function rebalanceWeight(request,result,{maxMoves=64}={}){
   }
   return rebalanceFallback(request,result,{maxMoves});
 }
-export const version=()=>native?.version?.()??'0.1.2-js-fallback';
+export const version=()=>native?.version?.()??'0.1.3-js-fallback';
 
 /**
  * The exported commercial and control-plane API: a quote, a policy decision and catalog
diff --git a/package.json b/package.json
index 5dee38b..e7344fe 100644
--- a/package.json
+++ b/package.json
@@ -1,9 +1,9 @@
 {
   "name":"@packvium/engine",
-  "version":"0.1.2",
+  "version":"0.1.3",
   "description":"Native-first 3D cartonization with deterministic JS fallback",
   "keywords":["3d-bin-packing","bin-packing","cartonization","packing","container-loading","logistics","shipping","deterministic"],
-  "homepage":"https://github.com/toxakara/packvium-node#readme",
+  "homepage":"https://packvium.com",
   "repository":{"type":"git","url":"git+https://github.com/toxakara/packvium-node.git"},
   "bugs":{"url":"https://github.com/toxakara/packvium-node/issues"},
   "type":"module",
@@ -12,7 +12,7 @@
   "exports":{".":{"types":"./index.d.ts","import":"./index.js"}},
   "files":["index.js","fallback.js","contact-graph.js","policy.js","commerce.js","commerce-model.js","examples","index.d.ts","README.md","SECURITY.md"],
   "engines":{"node":">=16"},
-  "optionalDependencies":{"@packvium/native":"0.1.2"},
+  "optionalDependencies":{"@packvium/native":"0.1.3"},
   "scripts":{
     "test":"node --test \"test/*.test.mjs\"",
     "test:legacy":"node test/legacy-conformance.mjs"
diff --git a/test/fallback.test.mjs b/test/fallback.test.mjs
index 4065c80..7aec916 100644
--- a/test/fallback.test.mjs
+++ b/test/fallback.test.mjs
@@ -40,11 +40,17 @@ const rebalanceFixtureUrl = new URL('../../../../conformance/scene/rebalance-fix
 const sharedRebalanceCase = existsSync(rebalanceFixtureUrl)
   ? JSON.parse(readFileSync(rebalanceFixtureUrl)).cases[0]
   : null;
+// Also workspace-only, and guarded for the same reason as the fixture above: in a
+// published copy this path resolves above the package root, where nothing exists. Loading
+// it unguarded took every job in the mirror's matrix down at module load, on every OS and
+// every Node version, from 2026-08-14 until this guard was added.
 const nestedTopLoadFixtureUrl = new URL(
   '../../conformance/shared/fixtures/regression-grid-cumulative-top-load.json',
   import.meta.url,
 );
-const sharedNestedTopLoadRequest = JSON.parse(readFileSync(nestedTopLoadFixtureUrl));
+const sharedNestedTopLoadRequest = existsSync(nestedTopLoadFixtureUrl)
+  ? JSON.parse(readFileSync(nestedTopLoadFixtureUrl))
+  : null;
 
 test('explanations are deterministic and localization-ready', () => {
   const item = {
@@ -259,7 +265,11 @@ test('general grid propagates top load through adjacent nested items', () => {
   assert.deepEqual(placements(result).map(placement => placement.top_load.ticks), [8_000_000_000, 0]);
 });
 
-test('shared nested lattice honours support ratio, single contact, and cumulative load', () => {
+test('shared nested lattice honours support ratio, single contact, and cumulative load', (t) => {
+  if (sharedNestedTopLoadRequest === null) {
+    t.skip('the shared cross-language fixture corpus is not part of this package');
+    return;
+  }
   const result = packSound(sharedNestedTopLoadRequest);
 
   assert.equal(result.complete, true);