Laravel Knowledge Patch

Laravel Knowledge Patch

Use this patch when implementing, reviewing, testing, or upgrading Laravel applications and framework extensions. Inspect composer.json first, then apply only guidance that exists in the application's installed framework version. Trust the manifest, lockfile, application code, and tests when they show behavior that differs from this guidance.

Reference index

Major-upgrade triage

Runtime and package constraints

• Laravel 13 requires PHP 8.3 and uses laravel/framework:^13.0 plus laravel/tinker:^3.0.
• Relevant Laravel 13 upgrades use Boost 2, PHPUnit 12, or Pest 4 constraints.
• Laravel 12 uses laravel/framework:^12.0, Carbon 3, PHPUnit 11 or newer, or Pest 3.
• Laravel 12 supports PHP 8.2 through 8.5; Laravel 13 supports PHP 8.3 through 8.5.
• Beanstalkd applications moving to Laravel 13 need Pheanstalk 8; version 5 is no longer supported.

Laravel 13 breaking changes

• Explicitly set CACHE_PREFIX, REDIS_PREFIX, and SESSION_COOKIE when old cache, Redis, or cookie identifiers must remain stable.
• Cache stores must implement touch($key, $seconds).
• Cached PHP objects require an allow-list in cache.serializable_classes; the default rejects serialized classes.
• Custom contract implementations must add the new dispatcher, response-factory, and email-verification methods.
• MySQL and MariaDB upsert() require a non-empty uniqueBy argument.
• Joined MySQL deletes now retain ORDER BY and LIMIT; unsupported variants fail instead of becoming unbounded deletes.
• Do not instantiate a model recursively from its own boot or trait-boot methods.
• Set custom polymorphic pivot table names explicitly when retaining an inferred singular table name.
• Update custom HTTP response overrides so throw() and throwIf() accept callback parameters.
• JobAttempted::$exception replaces the boolean exceptionOccurred property.
• QueueBusy::$connectionName replaces QueueBusy::$connection.
• Custom queue drivers must implement pending, delayed, reserved, and oldest-pending metrics.
• Explicit-domain routes take precedence over routes without domains regardless of registration order.
• Scheduling callbacks passed to withScheduling() are registered when Schedule resolves, not immediately.
• Use PreventRequestForgery and preventRequestForgery(...); the old CSRF middleware names are deprecated aliases.
• Capture external values explicitly in manager extension closures because those closures are bound to the manager.
• Re-register custom Str UUID, ULID, and random factories in each test setup that needs them.
• Expect Js::from() to emit unescaped Unicode.
• Remove legacy global helpers that conflict with PHP 8.5 polyfills.
• Use the renamed Bootstrap 3 pagination views for direct references.

Laravel 12 breaking changes

• Convert custom DatabaseTokenRepository expiration arguments from minutes to seconds.
• Expect associative input to Concurrency::run() to return keyed results.
• Optional class-typed constructor parameters with defaults keep those defaults during container resolution.
• Construct Blueprint and database grammars with a Connection; removed prefix mutators are unavailable.
• HasUuids generates ordered UUIDv7 values; use HasVersion4Uuids when UUIDv4 must remain.
• Request::mergeIfMissing() treats dotted keys as nested paths.
• Duplicate route names resolve to the first registered route in cached and uncached routing.
• Configure the local disk root explicitly to retain storage/app; the fallback is private storage.
• Opt into SVG validation with image:allow_svg or File::image(allowSvg: true).
• Account for Eloquent\Collection::partition() returning a support collection.
• Provide native MariaDB client binaries for database CLI operations.

High-value framework behavior

Container and core

• Closure bindings can infer their abstract from a declared return type.
• Bind, BindWhen, Singleton, and Scoped attributes reduce service-provider binding code.
• Contextual attributes can inject context, database, cache, and other manager-selected values, including enum selectors.
• Contextual attribute resolution can inspect the target reflection parameter.
• Context::scope() restores surrounding context after a callback.
• Context::remember() and rememberHidden() lazily populate missing values.
• Collections support closure-based pluck(), enum grouping and keys, reduceInto(), and callback-aware containsOneItem().
• LazyCollection supports stepped ranges, heartbeats, and timeout callbacks.
• Arr has typed getters, depth-limited dot(), and iterable-aware every(), some(), and last().
• Locale-aware number parsing can return false; handle failed parses explicitly.
• Str::trim() removes invisible Unicode characters, while studly() and pascal() can normalize before conversion.
• Concurrent runs accept timeouts, and process timeouts accept CarbonInterval.

Database and Eloquent

• Database inspection spans all schemas by default; request schemas and qualification behavior explicitly when needed.
• PostgreSQL supports online indexes, virtual columns, tsvector, precomputed full-text vectors, transaction poolers, and conversion expressions for changed columns.
• MariaDB supports UUID fallback behavior and vector indexes; SQLite supports JSON, JSONB, transaction modes, pragmas, URI filenames, and polymorphic exclusions.
• MySQL schema operations support SSL credentials, DDL locks, and explicit SSL disabling for dump or restore workflows.
• Eloquent supports automatic relationship loading, one-of-many through relationships, nested relationLoaded(), and nested-array loadMissing().
• Use the Scope attribute for local scopes; the earlier NamedScope name is obsolete.
• withAttributes(..., asConditions: false) supplies creation attributes without adding query predicates.
• whereAttachedTo(), withoutGlobalScopesExcept(), whereValueBetween(), and inOrderOf() cover common relationship and ordering cases.
• Creation helpers accept lazy closure values, and pivot mutation methods have transactional *OrFail variants.
• Value-object casts support mass assignment; first-party casts include binary, URI, fluent, HTML string, Unicode JSON, and mapped collections.
• getPrevious() exposes values from immediately before the last save.
• Stop using orWhereKey() and orWhereKeyNot() because current Laravel 13 patch releases removed them.

HTTP and routing

• Http::record() records real outbound requests without faking responses.
• preventStrayRequests() can allow selected real URL patterns.
• HTTP batches support deferred execution, lifecycle hooks, request contexts, and bounded concurrency.
• Pending HTTP methods can return fluent promises; pools and batches can construct requests with newRequest().
• HTTP connection and certificate failures surface through Laravel's HTTP exception abstraction.
• Response::json() accepts JSON decoding flags such as JSON_BIGINT_AS_STRING.
• Request::get() is deprecated; choose input(), query(), or another source-specific accessor.
• eventStream() supports custom event names and initial messages.
• Route metadata, parameter-name injection, closure source locations, and middleware-filtered listings improve routing tooling.
• Malformed encoded cursors return null; validate the result before use.
• The health route and maintenance mode can serve JSON-aware responses.

Queues and scheduling

• Queue::route() centralizes job routing; a single string means the queue name.
• Queue jobs support class attributes for tries, backoff, timeout, failure-on-timeout, delay, and inherited debounce behavior.
• Runtime queue selection overrides class-level queue attributes.
• SQS supports fair queues, named credential providers, and disk-backed overflow payloads.
• Redis Cluster works with queues and concurrency limiting.
• Failover queues and caches emit failure events that identify the originating exception or underlying store.
• Workers expose startup, idle, pause, resume, interruption, stopping, and stop-reason telemetry.
• Queue inspection returns payload and queue details without backend-specific access.
• Queue fakes inspect delayed and reserved jobs and expose before/after push hooks.
• Scheduler pause, resume, reload interruption, group callbacks, and environment-filtered listings are available.
• schedule:list --json, queue:failed JSON, and queue:monitor oldest-pending data support automation.

Cache, sessions, and filesystems

• Cache::memo() adds request-local memoization and supports flexible() stale-while-revalidate reads.
• Cache::funnel() provides driver-independent concurrency limiting.
• Cache locks can refresh expiration; database-lock pruning can be disabled.
• Redis tagged-cache flushes are atomic and can use custom connections.
• The cache session driver uses SESSION_DRIVER=cache with SESSION_STORE selecting the store.
• Scoped disks inherit the parent disk's throw behavior.
• Local disks support temporary upload URLs.
• Served disks must have unique URIs, and generated filesystem URL paths are encoded.

Validation and authentication

• Rule::anyOf() validates when any complete alternative rule set passes.
• Rule::contains() and in_array_keys validate required array values or keys.
• Strict boolean, numeric, integer, and form-request modes reject loose or unknown input.
• The image rule excludes SVG unless explicitly allowed.
• Uploaded files can be validated for character encoding.
• Fluent password rules handle required() and sometimes() consistently and can stringify themselves.
• Auth::login() regenerates the session identifier.
• Bcrypt can enforce its 72-byte input limit.
• Remember cookies store a MAC of the password hash, not the raw hash.
• Decryption authenticates ciphertext against all configured rotated keys.

Views, resources, mail, and frontend

• Models and collections can discover resources through convention or explicit resource attributes.
• JsonApiResource supports JSON:API serialization and circular-reference deduplication.
• Blade provides context blocks, isolated includes, stack detection, function or constant imports, and optimized fonts.
• Vite can limit preloads and customize asset paths.
• Resend supports raw and inline attachments.
• Notifications expose failure transport exceptions, post-send hooks, custom queued job classes, and missing-model deletion behavior.
• Mail supports Cloudflare Email Service and SES tenants.

Working method

1. Read the installed framework constraint and lockfile version.
2. Start with the major-upgrade checks when changing framework versions.
3. Open only the topic references relevant to the code under review.
4. Preserve exact defaults and final option names; several entries document reverted or renamed APIs.
5. Add regression tests for changed routing, serialization, queue, session, schema, and validation behavior.