Version 5.0.0: remove callback support and upgrade to node-redis v6

.github/workflows/test.yml

@@ -1,6 +1,11 @@
 name: Test
 
-on: [push, pull_request, workflow_dispatch]
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
 
 jobs:
   test:

CHANGELOG.md

@@ -6,6 +6,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [5.0.0] - 2026-08-04
+See the [v4 to v5 migration guide](docs/v4-to-v5.md).
+### Added
+- `pettyCache.close()` stops the background refresh intervals started by `fetchAndRefresh` and gracefully closes the Redis client connection.
+### Changed
+- Callback support is removed. Every function returns a promise; passing a callback rejects with a `TypeError`.
+- Cache-miss functions and `retrieveOrCreate`'s `size` option must be async (or plain-return) functions; callback-style functions are no longer supported.
+- Upgraded the `redis` client from v3 to v6. The client is connected automatically, and injected clients must be node-redis v6 clients.
+- The constructor takes a node-redis v6 options object, passed to `redis.createClient()` untouched. The `(port, [host, [options]])` signature and node-redis v3 option names (`auth_pass`, `host`, `port`, `enable_offline_queue`, and friends) are no longer supported.
 ## [4.0.1] - 2026-08-05
 ### Fixed
 - A callback that throws is no longer invoked a second time with its own error. Callbacks are now invoked on the next tick, outside of the promise chain, so a throw from within a callback surfaces as an uncaught exception instead of being swallowed. Affects every callback-style function.

CLAUDE.md

@@ -17,7 +17,7 @@ npm test
 npm run coveralls
 
 # Run a single test file
-npx mocha test/index.js
+node --test --test-force-exit --test-reporter=spec test/index.js
 ```
 
 ### Linting
@@ -36,11 +36,10 @@ npm install
 
 ### Core Structure
 - **Main Entry**: `index.js` - Contains the PettyCache class and all public API methods
-- **Test Suite**: `test/index.js` - Comprehensive Mocha test suite testing all cache operations, mutex, and semaphore functionality
+- **Test Suite**: `test/index.js` - Comprehensive node:test suite testing all cache operations, mutex, and semaphore functionality
 - **Dependencies**:
-  - `redis` (v3.1.0) - Redis client for distributed caching
+  - `redis` (v6) - Redis client for distributed caching; petty-cache connects it automatically
   - `memory-cache` (v0.2.0) - In-memory cache for recently accessed data
-  - `async` (v3.2.6) - Async utility functions
   - `lock` (v1.1.0) - Local locking mechanism
 
 ### Key Design Patterns