Two new storages, a lock that really prevents cache stampede, and an API in which a mistake in dependencies or invalidation fails loudly instead of quietly leaving stale data in the cache.

✨ New Features

• RedisStorage – a native Redis backend that keeps tags and priorities itself, so it needs no journal, cleans namespaces, and lets only one process generate a missing item while the others wait for it (the lock expires after $lockTimeout)
• Psr16Storage – any PSR-16 cache can now serve as a Nette storage; PsrCacheAdapter keeps covering the opposite direction
• Dependencies – describe dependencies with a typed object your IDE understands: new Dependencies(expire: '20 minutes', tags: [...]), or type the generator's parameter as Dependencies $dp and write $dp->expire = '20 minutes'; the array with Cache::* keys still works
• clean() with named arguments – $cache->clean(tags: ["article/$id"]), priority: 100 or all: true
• Stronger stampede protection – FileStorage reads the item again once it gets the lock, so a process that waited for another one returns the fresh value instead of generating it a second time; a storage opts in through the new LockingReader interface
• MemoryStorage honors Expire, Sliding, Tags, Priority and cleaning by namespace, which makes it a realistic stand-in in tests (#85)
• SQLiteStorage cleans by namespace and runs in WAL mode, so readers and a writer no longer block each other
• serializeData() and unserializeData() of FileStorage can be overridden to store data in another format (#82)
• PHPStan now attributes exceptions thrown in the callbacks of load(), bulkLoad() and call() to their caller (#87)

💥 Breaking Changes

• Requires PHP 8.4, nette/utils 4.1 and, for the {cache} tag, Latte 3.1
• Storage::lock() is gone; a custom storage that should generate a missing item in one process at a time implements LockingReader::readOrGenerate(). Cache::save() with a closure is deprecated, pass the closure to load() as the generator
• An unknown key or a value of a wrong type in dependencies or in the conditions of clean() throws an exception, and so does clean() without any condition; expired items are removed by $storage->clean([])
• clean(all: true) on a cache with a namespace removes only that namespace and the ones derived from it; a cache without a namespace still clears the whole storage. Cleaning by Cache::Namespaces includes the derived namespaces as well
• A storage throws NotSupportedException for a dependency or condition it cannot honor, such as Priority in SQLiteStorage or cleaning by namespace in MemcachedStorage
• PsrCacheAdapter validates keys as PSR-16 requires, so user:1 and other keys with {}()/\@: are rejected
• The interfaces IStorage, IJournal and IBulkReader and the service aliases cacheStorage and nette.cacheJournal are removed; the UPPERCASE constants such as Cache::EXPIRE and Cache::start() trigger a deprecation notice

The complete list with migration hints is in docs/upgrading.md.

🐛 Bug Fixes

• MemcachedStorage extends a sliding expiration without storing back an item written in between
• A failed write to Memcached, such as an item over the size limit, triggers a warning (#71)
• FileStorage leaves no empty file behind when a generator fails, and a generator that generates its own item gets an exception instead of waiting for its own lock

⚡ Performance

• The FileStorage constructor collects garbage in batches limited to 20 ms instead of walking the whole cache, so a large cache no longer slows down the request that triggers the cleanup
• PsrCacheAdapter::getMultiple() reads all the keys in one bulk request

✨ New Features

• Ready for PHP 8.6
• SQLiteStorage now cleans up after itself – expired items are removed by probabilistic garbage collection, just like in FileStorage (#83)

🐛 Bug Fixes

• FileStorage: an Items dependency on an item that is being generated at the same moment no longer hangs the process (#54)
• FileStorage: cleaning the cache leaves alone files and directories of other tools sharing the cache directory, such as Latte, and copes safely with any foreign file it comes across (#45)
• MemcachedStorage: items with an expiration longer than 30 days are now kept for the intended time
• SQLiteStorage: bulkRead() works with any number of keys, regardless of the SQLite limit of query parameters

🛡️ Robustness

• PsrCacheAdapter follows PSR-16 more closely: a zero or negative TTL deletes the item, and a DateInterval TTL is converted independently of the timezone
• Edge cases in storages: a non-positive expiration in MemcachedStorage removes the item, SQLiteJournal keeps priority 0, SQLiteStorage ignores Sliding without Expire like the other storages, and SQLite transactions are rolled back on failure

A housekeeping release focused on code quality: every class and method now carries clearer, more descriptive PHPDoc, type hints got sharper (both native and annotated), and static analysis is now a mandatory part of CI with the official Nette PHPStan rules. No API changes – just a tidier, better-typed codebase.

• requires PHP 8.1
• support for PHP 8.5
• optimized global function calls
• removed support for Latte 2

• added PSR-16 adapter (#77)
• support for PHP 8.4

• Bulk write implementation (#73)
• CacheExtension: accepts complete path (BC break)
• CacheExtension, FileStorage: checks whether directory is absolute
• removed Nette\SmartObject

• support for PHP 8.3

• requires PHP 8.0
• added $dependencies as a Cache::load() 3rd parameter
• Latte: runtime helpers moved to Runtime class

• SQLiteJournal: speed up cache writing, prevent database locked error (#66)
• CacheExtension: used getProviders()
• Cache: returned NAMESPACE_SEPARATOR back (don't use it, it's internal) #67

• support for Latte 3
• coding style