* Fix: Important update! Deselecting all tables does not lead to exclusion of tables as expected, but leads to selection of all tables. Thus all tables are copied and possibly overwritten instead of deselected. Applies to new cloning, UPDATE and RESET of a staging page. That can lead to data loss in the staging site. An update is strongly recommended! The problem appeared for the first time in version 4.2.8. #1814

* Fix: Can not upload backup file to google drive if the google api returns incorrect value for available storage size (negative value). This sometimes happens for Google workspace accounts and does not affect all users. #1799

* Fix: Plugin wps-hide-login could not be excluded during cloning process, preventing users from log in to the staging site #1812

Fix: On some servers, autoloader tries to load Composer\InstalledVersions although this doesn't exist. We fix this by only loading classes that exist #1801

* Fix: Certain default plugins like wps-hide are not excluded anymore during cloning #1742

* Fix: Scheduled backup not always executed #1754

* Fix: Backup folder is deleted during backup restore on Windows OS #1737

* Fix: On backup restore retry deleting an item again in next request instead of re adding it at the end of queue, if item isn't completely deleted in current request #1758

* Enh: Refactor normalizePath() #1751

* Enh: Optimize table selection to reduce POST characters. Send either selected tables or excluded tables whichever is smaller along to reduce the POST size for cloning and pushing #1727

* Enh: Allow automatic update of WP STAGING | PRO on the staging site. It can still be disabled using the filter wpstg.notices.disable.plugin-update-notice #1749

* Enh: Add filter wpstg.backup.restore.extended-search-replace. The extended search replace allow properly replacing to destination URL for some plugins like rev-sliders #1741

* Fix: If there is a damaged backup in backup folder, automated backup does not work any longer #1707

* Fix: Support UNC paths like //servername/path Unix or \\servername\path DOS/Windows #1698

* Fix: Remove prefixed vendor namespace from the Normalizer class in the idn-intl polyfill #1720

* Fix: Handle SSL related errors and catch other exceptions while making remote request to refresh Google token #1718

* Fix: Backup does not restore theme if theme does not have a style.css #1719

* Fix: Missing exception in Backup Extractor.php #1724

* Enh: List damaged backup files in the UI and mark them #1710

* Enh: Remove message "backup metadata not found" in debug log #1710

* Enh: Clean up debug messages #1722

* Enh: Add missing escaping of POST output #1705

* New: Add multiple filters to keep existing media files, plugins, themes and mu-plugins after backup restore #1617

* New: Clean existing files during backup restore which are not in backup #1617

* Fix: Cloning does not work if php mb module is not installed #1669

* Fix: Catch fatal error happening on backup upgrade routine #1663

* Fix: Only process one backup queue action at a time. This make sure another action doesn't conflict with the backup action in process. Also fix the wpstg_queue backup processing table growing problem #1652

* Enh: Save log file name instead of complete task response in wp_wpstg_queue table. This reduces the size of backup queue table #1623

* Enh: Stop the backup job on critical errors during scheduled backup #1623

* Dev: Test for cleaning up files before backup restore fails on second run #1681

* New: Support up to WordPress 5.9.1

* New: Add filter wpstg.frontend.showLoginForm to allow third party plugin disabling login form for the staging site #1577

* New: Add labels to distinguish between network and single site clones on multisite

* Fix: Handle issue when showing staging sites in System Info #1560

* Fix: Fix Rows Generator for zero or negative values for Primary Key Index #1584

* Fix: Set option "Keep permalinks" on the staging site when updating a staging site if "keep permalinks" is active on the production site initially #1562

* Fix: Updating an existing multisite clone converted the clone to a single site #1565 #1589

* New: Create backups and restore of multisites #1458

* Fix: Force AnalyticsSender to convert wpstg_settings to array before usage #1559

* Fix: Backup Search & Replace does not work with new primary key conditional query #1556

* Fix: Fix labels on backup sites #1551

* Fix: Backup restore can not unserialize escaped serialized strings #1554

* New: Support for WordPress 5.9

* New: Add filter to change the cache folder for creating & restoring backups #1528

* New: Huge performance improvement for search & replace in cloning / pushing / backup process #1522

* Fix: Call to undefined function human_readable_duration() on backup creation if WP is older than 5.1 #1527 #1525 #1535

* Dev: Add unit tests for Times class

* Dev: Update db_version in SQL dumps to match WordPress 5.9 db version #1539

* Dev: Add command to get db_version from database

* New: Add support for WordPress 5.8.3

* New: Add filter for excluding files during cloning / backup #1494

* New: Add filter for overwriting max execution for database backup restore #1512

* New: Add filter to allow overwriting of the maximum allowed request time to make sure backup restore works for huge files. (19.000.000M database rows) #1510

* Fix: If cloning a multisite subsite into external database, it does not clone / backup wp_users and wp_usermeta #1515

* Fix: Skip tmp single file plugin during backup PUSH copy process #1491

* Fix: Preserve table selection during PUSH and UPDATE even when all backup tables unselected #1488

* Fix: Make sure maximum memory consumption during cloning or backup is never higher than 256MB #1502

* Fix: Use custom implementation of wp_timezone() for backward compatibility to WordPress older than 5.3 #1505

* Fix: Override FileObject::fgets to make them behave exactly from SplFileObject of PHP < 8.0.1 #1506

* Tweak: Show custom uploads folder in tooltip description and explain better that changing a symlink image will also change the image on the production site. #1495

Hotfix: Fix CLONE PUSH BACKUP on Medium and High CPU Load on WP STAGING PRO 4.1.3. Improve Performance of database backup #1492