5.9.0

What's Changed

Features

• json_encode() returns a non-empty-string with JSON_THROW_ON_ERROR | JSON_UNESCAPED_UNICODE by @fluffycondor in #9479
• WIP: Performance/Feature Improvements to the Language Server by @tm1000 in #8960
• Support int separators in docblocks by @weirdan in #9491
• @Property annotations: allow not implying @psalm-seal-properties by @danielbeardsley in #9568
• Improve PHP8 str_* function signatures by @fluffycondor in #9534
• Contextual inference for first-class-callable by @klimick in #9570

Fixes

• Compare list generic params by @weirdan in #9487
• Add truthy-string to reserved word list. by @ZebulanStanphill in #9486
• Fix #9433 by @ptomulik in #9439
• Add missing array, float, int and bool types to callmaps by @othercorey in #9474
• Fix asserted property mangling by @weirdan in #9507
• Fix return type of str_split() by @othercorey in #9504
• Fix integer overflow in array keys by @weirdan in #9499
• Set inside_call for eval expressions by @edsrzf in #9519
• Improve json_encode/json_decode functions signatures by @fluffycondor in #9525
• Fix MissingThrowsDocblock when documented interface is extended by thrown exception interface by @paoloconi96 in #9528
• Fixed #9496 by @ptomulik in #9497
• Prevent assertion leaks from else by @weirdan in #9538
• Fixed coercion of mixed into non-empty-mixed by @weirdan in #9541
• always combine the result of expansions by @orklah in #9562
• Clean up unreflectable callmap methods by @othercorey in #9526
• Add better return type to mysqli fetch_field* by @MoonE in #9555
• [mysql] Add stubs for mysqli, mysqli_result and mysqli_stmt classes by @phansys in #9547
• Fix array_unique callmap by @othercorey in #9323
• Improve types for range() by @kamil-tekiela in #9577
• Fixed #9506 by @ptomulik in #9509
• Handle different line endings from baseline. by @DnwK98 in #9566

Docs

• Doc/psalm api on methods by @ygottschalk in #9544

Internal changes

• Optimize composer caching by @weirdan in #9493
• Update phar-build to large resource class in config.yml by @weirdan in #9494
• Refuse to use PHP versions we did not request by @weirdan in #9492
• Make Atomic subclasses consistently call their parent constructors by @edsrzf in #9406
• Remove always-empty ClassAnalyzer leftover_stmts array by @edsrzf in #9522
• Skip gnupg extension in callmap tests by @othercorey in #9576

New Contributors

• @ZebulanStanphill made their first contribution in #9486
• @paoloconi96 made their first contribution in #9528
• @MoonE made their first contribution in #9555
• @danielbeardsley made their first contribution in #9568
• @DnwK98 made their first contribution in #9566

Full Changelog: 5.8.0...5.9.0