Display deprecation warning and some final housekeeping

.github/workflows/tests.yaml

@@ -0,0 +1,31 @@
+name: Tests
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        job: [linux, macos, windows]
+        include:
+          - job: linux
+            os: ubuntu-latest
+
+          - job: macos
+            os: macos-latest
+
+          - job: windows
+            os: windows-latest
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: 14
+          cache: npm
+
+      - run: npm ci
+      - run: npm run build
+      - run: npm test

CHANGELOG.md

@@ -8,6 +8,14 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 <!-- ## Unreleased -->
 <!-- Add new, unreleased changes here. -->
 
+## [1.4.3] 2021-09-22
+- `prpl-server` is now deprecated. A warning will be printed when installing
+  from NPM, as well as each time the server is launched. Please see
+  https://github.com/Polymer/prpl-server#deprecation for details and recommended
+  alternatives.
+- Updated dependencies.
+- Updated some repo links (`prpl-server-node` -> `prpl-server`).
+
 ## [1.4.2] 2020-08-12
 - Update dependencies.
 - Clean up unnecessary NPM package files.

README.md

@@ -1,12 +1,12 @@
-[![Travis Build Status](https://travis-ci.org/Polymer/prpl-server-node.svg?branch=master)](https://travis-ci.org/Polymer/prpl-server-node)
-[![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/3bfbf7fgdifebv7o/branch/master?svg=true)](https://ci.appveyor.com/project/aomarks/prpl-server-node/branch/master)
-[![NPM version](http://img.shields.io/npm/v/prpl-server.svg)](https://www.npmjs.com/package/prpl-server)
+[![Build Status](https://github.com/Polymer/prpl-server/actions/workflows/tests.yml/badge.svg)](https://github.com/Polymer/prpl-server/actions/workflows/tests.yaml?query=branch%3Amain)
+[![Published on npm](https://img.shields.io/npm/v/prpl-server.svg?logo=npm)](https://www.npmjs.com/package/prpl-server)
 
 # prpl-server
 
 An HTTP server for Node designed to serve [PRPL](https://developers.google.com/web/fundamentals/performance/prpl-pattern/) apps in production.
 
-> ⚠️IMPORTANT⚠️ `prpl-server` is in maintenance mode, and is no longer recommended. Reports and PRs for critical bugs and security issues will be accepted, but we will no longer accept new feature requests or PRs.
+## Deprecation
+> ⚠️IMPORTANT⚠️ `prpl-server` is deprecated and is no longer recommended. Reports and PRs for critical bugs and security issues will be accepted, but we will no longer accept new feature requests or PRs.
 > 
 > For differential serving, we now recommend a simple two-build configuration using `nomodule` for client-side capability sniffing. See https://jasonformat.com/modern-script-loading/ for more details on this pattern.
 >