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 f590e70..d14dea0 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 Deterministic 3D cartonization and rectangular bin packing. Pure Python, **no runtime
 dependencies**, exact integer geometry.
 
-> **Version 0.1.2 — early release.** The public API is not frozen; pin an exact version.
+> **Version 0.1.3 — early release.** The public API is not frozen; pin an exact version.
 > Read [docs/GUARANTEES.md](https://github.com/toxakara/packvium-python/blob/main/docs/GUARANTEES.md) before relying on a result.
 
 ```bash
@@ -101,6 +101,9 @@ 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/pyproject.toml b/pyproject.toml
index 976585a..2952a89 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "packvium"
-version = "0.1.2"
+version = "0.1.3"
 description = "Deterministic, extensible 3D cartonization and rectangular bin-packing library"
 readme = "README.md"
 requires-python = ">=3.9"
@@ -13,6 +13,10 @@ authors = [{name = "Packvium contributors"}]
 keywords = ["3d-bin-packing", "cartonization", "packaging", "container-loading"]
 classifiers = [
   "Development Status :: 3 - Alpha",
+  "Intended Audience :: Developers",
+  "Topic :: Scientific/Engineering",
+  "Topic :: Software Development :: Libraries",
+  "Topic :: Office/Business",
   "Programming Language :: Python :: 3",
   "Programming Language :: Python :: 3 :: Only",
   "Programming Language :: Python :: 3.9",
@@ -26,9 +30,9 @@ classifiers = [
 ]
 
 [project.urls]
-Homepage = "https://github.com/toxakara/packvium-python"
+Homepage = "https://packvium.com"
 Source = "https://github.com/toxakara/packvium-python"
-Documentation = "https://github.com/toxakara/packvium-python/tree/main/docs"
+Documentation = "https://packvium.com/docs"
 Changelog = "https://github.com/toxakara/packvium-python/blob/main/CHANGELOG.md"
 Issues = "https://github.com/toxakara/packvium-python/issues"