• added LinterExtension for validating filters, functions, classes and methods
• linter: improved finding files, excludes temp, vendor, node_modules
• support every argument syntax for clone() in PHP 8.5
• added CustomFunctionCallNode for custom functions
• refactor: decentralize operator precedence to individual nodes
• *CallableNode replaced with solution with VariadicPlaceholder (BC break)
• ErrorSuppressNode & NotNode merged into UnaryOpNode (BC break)
• deprecated PrintContext::infixOp(), prefixOp(), postfixOp() (BC break)
• fixed operator ! priority

• Escaper: supports converting HTML => TEXT
• Escaper: fixed converting between HTML/ATTR <=> HTML
• added ModifierNode::removeFilter()
• linter: added assets extension

This major release introduces Smart HTML Attributes, strict_types by default, and several syntax improvements. It requires PHP 8.2+.

Smart HTML Attributes

• Null values: Attributes with null values are now dropped instead of rendering as empty strings.
• Boolean attributes: Attributes like checked or disabled render conditionally based on truthy/falsey values.
• Array support: class and style attributes now accept arrays (e.g., class="{[active: $cond]}").
• Data attributes: data-* attributes automatically JSON-serialize non-string values (arrays, objects, booleans).
• Aria attributes: aria-* attributes render boolean values as "true"/"false".
• Type checking: Passing invalid types (arrays, objects) to standard attributes now triggers a warning and omits the attribute.

New Features

• Added n:elseif support.
• Added nullsafe filter operator ?| (e.g., {$var?|upper}).
• Added |toggle filter for manual boolean attribute control.
• Support for unquoted n-attribute syntax: n:if={$cond}.
• Added Engine::setMigrationWarnings() to help detect changes in attribute rendering.

Breaking Changes & Deprecations

• strictTypes is now enabled by default.
• Using $this and $__* variables in templates is deprecated.
• The undefined unsafe operator ??-> is deprecated (use ?->).
• Global constants should now be prefixed with a slash (e.g., \PHP_VERSION).
• Engine::addFilterLoader() is deprecated.

• Released version 3.0.24
• support for PHP 8.5
• added support for pipe operator in PHP 8.5
• added support for new deref without parens in PHP 8.4
• added Engine::setSyntax() to set default syntax (#359)
• refactor: moved script tag quote validation from PrintNode to compiler pass
• Tag parser: checks octal sequence overflow
• Engine::getCacheKey() reflects strictTypes & strictParsing, ignores filemtime of extensions
• ElementNode::getAttribute() uses case-insensitive comparison in XML
• NAttrNode: renamed temporary variables not to collide with n:snippet

• TagParser: allowed |filter() and bitwise OR
• PrintContext::format() parenthesizes %node if it has lower precedence than the assignment operator
• PrintContent: refactoring and updated operator precedence and associativity table
• Cache::generateFileName() file name always contains 'latte--'
• added /** Generated by Latte */ comment
• n:else: fixed when there are multiple TextNode
• PrintNode moved to Latte\Compiler\Nodes
• Nodes: removes null nodes after traversal

• added function hasTemplate()
• added |firstLower
• added NodeTraverser::RemoveNode constant #396
• improved block/template dynamic name checking
• optimized global function calls

• tag name can end with ? like {foo?}
• support property hooks in template params (#395)
• |number with pattern requires locale #390
• removed workaround against mXSS vulnerability
• Engine: caching moved to Cache
• LattePanel: convert templates to Latte-like syntax

• {default} is evaluated lazily
• |localDate respects the time zone set in PHP #380
• added |filter
• FileLoader: fixed path normalization for phar and absolute paths #378
• TagParser: allow trailing comma in |filter(...)
• TranslatorExtension: translate() can return \Stringable #372
• CachingIterator::__get() does not return a reference

• added support for locale, affects |localDate, |number, |bytes and |sort filters
• {import} supports arguments
• coreParentFinder is called only for main template (BC break)
• support for PHP 8.4

• added filter |group & function group()
• filter |sort accepts iterable
• filter |sort added by & byKey
• Filters::first() accepts iterable
• Engine: cache-key divided into key and signature, that is stored in a lock file
• Engine: added underscore to template class name
• Loader::isExpired() deprecated
• Blueprint::printClass() rewritten (BC break)