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<New FeaturesNew Functions>
^Migrating from PHP 8.5.x to PHP 8.6.xLast updated: Mon, 26 Oct 2026

New Classes and Interfaces

Core

  • SortDirection
  • StreamError
  • StreamException
  • StreamErrorStore
  • StreamErrorMode
  • StreamErrorCode
  • Io\IoException
  • Io\Poll\Context
  • Io\Poll\Watcher
  • Io\Poll\Backend
  • Io\Poll\Event
  • Io\Poll\Handle
  • Io\Poll\PollException
  • Io\Poll\FailedPollOperationException
  • Io\Poll\FailedContextInitializationException
  • Io\Poll\FailedHandleAddException
  • Io\Poll\FailedWatcherModificationException
  • Io\Poll\FailedPollWaitException
  • Io\Poll\BackendUnavailableException
  • Io\Poll\InactiveWatcherException
  • Io\Poll\HandleAlreadyWatchedException
  • Io\Poll\InvalidHandleException
  • StreamPollHandle

Date

  • Time\Duration
  • Time\TimeException

Intl

  • IntlNumberRangeFormatter

OpenSSL

  • Openssl\OpensslException
  • Openssl\Session
  • Openssl\Psk

SNMP

  • Snmp\Mib
  • Snmp\OidOutput
  • Snmp\Output
  • Snmp\StringOutput

URI

  • Uri\Rfc3986\UriBuilder
  • Uri\WhatWg\UrlBuilder
  • Uri\WhatWg\UrlPercentEncodingMode

<New FeaturesNew Functions>
^Migrating from PHP 8.5.x to PHP 8.6.xLast updated: Mon, 26 Oct 2026