WP Synchro Pro changelog

1.16.2 Latest 3 fixed

Fixed

• Fix CVE-2026-41558, which allowed for authentication bypass on pages, such as wp-login.php supplied by other plugins (such as 2fa plugins)
• Improve handling and security of transfer token to prevent misuse (thanks to Trang Si Hoang for reporting this)
• Improve memory handling during database backup to make it more unlikely to hit memory limits

1.16.1 1 fixed

Fixed

• Add missing file for database backup functionality, which was enabled in the free version

1.16.0 6 improved

Improved

• Add an onboarding guide to help newcomers understand the terminology
• Add a wizard to help create simple migrations
• Make database backups available in the free version
• Make the migrations run in a modal popup instead of its own page
• Bump supported WordPress version to 7.1
• Bump minimum PHP version to 7.4

1.15.0 3 improved

Improved

• Give warning when the source database contains tables that are not prefixed with the site's prefix
• Add button in "Logs" to remove any temporary tables that WP Synchro have left behind in a failing migration
• Bump supported WP up to 7.0

1.14.0 1 improved1 fixed

Improved

• Bump supported WP up to 6.9

Fixed

• Fix a minor translation loading timing, where the plugin updater would use translation before it was loaded

1.13.0 2 fixed

Fixed

• Optimize the handling of database queries, which no longer has the same tendency to cause sort buffer errors in certain conditions
• When verifying migrations, give better debug information when it fails, instead of a generic JS message

1.12.0 4 improved1 fixed

Improved

• Extend cron scheduling system, so migrations can be run at intervals automatically without user intervention and without WP CLI
• Prevent unwanted background update from PRO version to FREE version for some users
• Make it possible to only delete a single log from the "Logs" menu, instead of all or nothing
• Make it possible to download the database backup from a pull migration in "Logs" menu

Fixed

• No longer use ini_restore() native PHP function, because some hosting does not allow it

1.11.5 1 fixed

Fixed

• Fix links for usage reporting dialog, leading to a non-existing page

1.11.4 4 improved1 fixed

Improved

• Bump minimum PHP requirement to 7.2 from 7.0
• Bump minimum WP requirement to 5.8 from 5.2
• Bump minimum MySQL requirement to 5.7 from 5.5
• Bump supported WP version to 6.5

Fixed

• Fix some issues causing menu to generate PHP deprecation issues, even though it just triggered it in WP core functions

1.11.3 1 improved1 fixed

Improved

• Change all service URLs from wpsynchro.com to daev.tech, as we have moved the plugin there

Fixed

• Fixed a minor CSRF issue reported by Patchstack - Not a risk to be worried about.

1.11.2 1 improved1 fixed

Improved

• Added more safety against timeout issues in serialized data, so it wont happen again

Fixed

• Fix PHP timeout issue caused by serialized data, kind of like 1.11.1 hotfix, but caused by other data.

1.11.1 1 improved2 fixed

Improved

• Improve the error reporting when database server gives errors

Fixed

• Fix PHP timeout issue caused by serialized string search/replace handler, that goes into endless loop for defective serialized strings
• Fix issue with some tables not being migrated when source database is MariaDB and when table does not have a primary key

1.11.0 1 improved7 fixed

Improved

• Improve licensing code to use database option instead of transient, to prevent license server from being overrun by requests

Fixed

• No longer have problems with migration of WordFence database tables
• Make it possible to resume migrations again, as it was disabled as a mistake
• No longer block connections to remote sites that do redirects, but instead just give a warning
• Fix health check where PHP function get_headers() was being blocked by ModSecurity on some sites
• Give error when trying to migrate "json" data type to MySQL before version 5.7, where it is not supported
• Fix licensing code, that was giving PHP notices on PHP 8.2
• Improve database migration, so timeouts should be much less likely to happen

1.10.0 10 improved

Improved

• Support for WP 6.3
• Bump PHP support to minimum 7.0, instead of 5.6. Like WP core did at long last.
• Support for PHP 8.2 without deprecation notices
• Bump MariaDB version support to minimum 10.0, from 5.5
• Added WordPress nonces to all actions for added security
• Support for restrictive CSP header (Content Security Policy)
• Handle when remote site redirects to another location, such as WPML redirecting to a specific language subdir
• Handle when migrating database from MySQL 8 with collation utf8mb4_0900_ai_ci to an older version MySQL server
• Improve search/replace in very large serialized data, to prevent out of memory errors and vastly improved performance
• Optimize the way database migration was done to better handle large datasets in rows

1.9.1 2 improved

Improved

• Bump support for WP 6.2
• API now flushes data before returning

1.9.0 5 improved1 fixed

Improved

• Ensure WP 6.1 and PHP 8.1 compatibility
• Improve the warning message when different versions of WP is used
• Add search/replaces for db for cases where the protocol part of the url is wrong in db
• Add check for MU plugin enabled on the target site, when file migration is done, to ensure performance and result
• Add "resume" button when migrations fail, which can used to attempt resume, in such cases where a simple timeout is the problem

Fixed

• Fix issue where MU plugin did not load properly

1.8.4 1 fixed

Fixed

• (Only released for FREE version) Fix php warning because of files only present in PRO version.

1.8.3 1 fixed

Fixed

• Fix issue when running one of the sites in a subdir, like http://domain.test/mysite1/. Error was like this: "Cannot read properties of undefined (reading 'dbtables')"

1.8.2 1 improved3 fixed

Improved

• License information is now included with log files

Fixed

• In some cases no search/replaces were done, when using the preconfigured migrations (the affected migrations will be deleted when updating to this version)
• Certain MySQL version in 8.0.x range gave problems when migrating to MariaDB, which is now fixed by WP Synchro
• Table prefix re-write failed, when there was already data in table with that prefix

1.8.1 1 fixed

Fixed

• Fix case sensitive path introduced in v.1.8.0

1.8.0 9 improved1 fixed1 changed

Improved

• Make it possible to preserve custom keys in the options table (normally wp_options)
• Deactivate modal added, to give feedback to developer as to why users deactivate WP Synchro
• Support for generated columns in database tables
• Add changelog as a menu, instead of hiding it as a file nobody will ever look at
• Use "migration" everywhere, instead of using "Installation" or "Synchronization". "Migration" is a better term and better understood.
• Better handling of database table constraints
• Check for different WP versions when doing migrations, just as a warning
• Always show connection options when add/editing migrations, so people dont overlook it
• Warn when user is trying to migrate site without a table prefix

Fixed

• Fix issue with updater conflicting with other plugins

Changed

• Major change: REST services are no longer used for migrations - Version 1.8.0 will be released to FREE users before PRO users, to make sure everything still works.

1.7.3 1 fixed

Fixed

• Fix issue with self-signed certificates for file finalize actions

1.7.2 5 improved2 fixed

Improved

• Basic authentication username/password is now auto-detected on the site where migration is running
• Add .DS_Store and .git files to standard exclude for files
• Improve licensing page to make it more obvious which state the license is in
• Make it easier to copy access key on 'Setup' page, by adding a "copy to clipboard" button
• Prevent duplicate and identical search/replaces

Fixed

• Fix migration stage text when i18n numbers format are using space as separator, such as "1 500 000"
• Fix problem where both source and target site was protected by basic authentication

1.7.1 1 improved2 fixed

Improved

• Clear all transients after migration, to prevent wrong data in transients on partial migrations

Fixed

• Health check showing connection errors on sites with basic authentication enabled
• Some users had issues with checkboxes ('Migrate files', 'Migrate database') on the add/edit migration being reset when saving the migration

1.7.0 11 improved3 fixed

Improved

• When doing file migration, make it an option to show a confirmation dialog to the user before continuing, so the user can verify the which files will be added/changed and deleted In this release, it is not turned on by default, since it is a new feature. But it can enabled by setting preconfigured migration to custom migration and enabling it under 'File migration' It is expected to be enabled...
• License key for PRO version can now be saved in code, as a PHP constant. Define the constant WPSYNCHRO_LICENSE_KEY in wp-config.php or the likes, which will override database value Example in wp-config.php: define('WPSYNCHRO_LICENSE_KEY', "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
• Ask users for acceptance to send data to wpsynchro.com about the usage of features - No personal data ofc. The data sent can always be seen in migration logs, for full transparency.
• Database views can now be migrated, in the same way as normal tables
• Improved health check and added a few more checks to it. Also check if using LocalWP on Windows, which has some bugs, that WP Synchro does not like
• Slow hosting setting in Setup menu now also reduces file chunk size per request
• Improved handling of some special characters in filenames for file migration
• Make sure browsers do not autocomplete fields when setting up a sync
• Handle when max_allowed_packet is set to a wrong value
• The table used and created by the plugin is now using more optimized collation
• Added better help to the add migration page, to help users understand what the fields are for and where to get the data needed

Fixed

• When syncing mu-plugins, make sure to do the mu-plugin files last, to make sure dependencies are there
• Make sure to migrate user.ini and .htaccess files at the very end, to prevent dependency errors, like loading WAF files etc.
• When populating files, do a file_exists just before getting data on it, to prevent problems with files that are created when indexing, but removed when we collect data on it

1.6.4 1 fixed

Fixed

• Improve handling of database table charsets/collation and improve error messages, as it was causing problems for some users

1.6.3 2 improved7 fixed1 changed

Improved

• Performance improvement by pushing CURL a bit more
• Clean up for PHP 8.x, so no more warnings and deprecated messages

Fixed

• Site url's are now no longer switched wrongly around on the success/error emails
• Fix problem with migration in WP CLI taking way longer than it should
• Files migration no longer goes into endless loop for certain version of MySQL 8.0.x
• Fix issue where xmlrpc.php was not synchronized from Yoast SEO plugin, giving fatal error from that plugin
• Improve error messages when getting SQL errors during database migration, such as too long key errors
• Better handle composite keys in database tables, as it did not move all rows correctly for these tables
• Show better error messages when license server say no to a migration

Changed

• Vanity: Format numbers by WP locale, so thousand separator and decimal character will be less confusing for some

1.6.2 1 fixed

Fixed

• Updating REST service definition that is causing PHP notice on WP 5.5

1.6.1 1 improved2 fixed

Improved

• Added better logging to file population REST service, to better support cases when it is hanging or not progressing

Fixed

• Success notification email were sent many times, when using it with WP CLI runs
• Handle edge case when doing data compression, where some hosting adds header to compressed data, causing error on decompression

1.6.0 16 improved1 fixed

Improved

• Better support HTTPS to HTTP migrations, where it previously were dependent on browser. It no longer is
• Remove IP validation, as it was causing too much troubles with only minimal value
• Better support for slow hosting or slow connection speed. Can be enabled in "Setup"
• Better uninstall hook that cleans up the database and files like a good little plugin
• Only keep 20 database backups and logs at any point, to prevent it taking up space
• Support for basic authentication (.htaccess protected sites) on both ends (PRO version)
• Add hooks for successful and failed migrations, for devs to hook into (wpsynchro_migration_completed / wpsynchro_migration_failure)
• Tries to clean cache for popular cache solutions after a successful migration (WP Rocket/WP Super Cache/W3 Total cache/Comet Cache)
• Better handles charset and unknown collations - Will now change charset and collation to recommended for WP (utf8mb4)
• Configure email to send email to on successful/failed migration (PRO version)
• Remove option to set debug logging and just make it the default
• Add logo to all headers on all pages
• Massively improved database finalize, doing it chunked instead of in one go, that could create problems on sites with many tables
• Rewrote the file population algorithm, to make it much faster and safer to run (PRO version)
• Added new default database search/replace with urlencoded urls, that is used by some page builder plugins
• Other: Bump minimum supported WP to 4.9 from 4.7

Fixed

• Fix problem when it sometimes try to load a file that does not exist in the free version

1.5.2 1 fixed

Fixed

• File population can in certain cases generate REST errors

1.5.1 1 improved2 fixed

Improved

• Change JSON debug information to also include file paths and remove the general debug data

Fixed

• Make multisite error a warning instead, to prevent blocking users that want to use it anyway
• Make "WP in own dir" error a warning instead of error, improve the path detection and give a more detailed warning message

1.5.0 16 improved1 fixed1 changed

Improved

• Support for replacing url's inside json data, such as Elementor templates (wp.org issue)
• Finally full support for all MySQL datatypes
• Support for subdirectory sites
• Search/replaces are not editable and removable, even the default ones
• General improvement of error messages given to the user
• Support for WordPress 5.3, which is just around the corner
• Proper message when doing migration from HTTPS site to HTTP site, which Chrome no longer allows
• Added option in "setup" menu to disable IP security check - Can be needed if requests pass multiple server
• Proper warning to user on migration creation, if one of the two sites have overlapping paths
• Add check to make sure database user can create tables in the database
• Implement PSR4 autoloading with composer
• More intelligent support for WordPress in its own directory - Such as Roots Bedrock
• Logs are now rotated and will have max 20 logs at any point - older will be deleted
• Added a button on "Logs" page to remove all the logs
• Making it more clear when a "migration" is new or being edited
• Better deactivation, that now removes the database tables

Fixed

• Try to prevent REST service call periodic timeouts, which we have seen some users having trouble with

Changed

• General: Overall improvement of stability and many big and small improvements

1.4.1 1 improved5 fixed

Improved

• When REST service calls fail, make sure to log more debug logging for easier troubleshooting

Fixed

• Highlight: Maintenance release with bugfixes
• Proper error is not thrown when failing file reads because of permissions
• Improvement of IP detection function, that in some cases did not return correct IP
• In some cases, an endless loop happened when file was remove mid-migration
• WP CLI had its time limit removed, as it is not relevant in CLI environment

1.4.0 4 fixed1 changed

Fixed

• SAVEQUERIES constant now properly detected
• Proper handling of unlimited memory limit and max execution time in PHP
• Prevent security token timeout on slow systems
• Database backup mistakenly went into endless loop, when having no tables to backup

Changed

• Highlight: Big improvement to the compatibility with different hosting setups - Everything now runs chunked in 30 seconds or less, which prevents timeouts on some hosting

1.3.2 3 improved

Improved

• Make database table prefix migration a option instead of forced - Warning will be issued if it is disabled and prefixes are different
• Database table prefix migration will now also change prefix in data in the usermeta and options table
• Added timeout check to healthcheck, to tell people when they have a misconfiguration in their hosting setup

1.3.1 1 fixed

Fixed

• Error in frontend timer causing error in migration even if migration running fine

1.3.0 5 improved1 fixed2 changed

Improved

• Highlight: Support migration between migrations using different table prefixes - Will automatically change it
• Handling all the timing in a central way, to optimize timers and decrease risk of hitting PHP max_execution_time limits
• Adding a "Duplicate" option to the overview, so its quick and easy so setup new migrations
• Downloading log files is not downloaded as zip file, because logs can get big
• Better handling of problems with uppercase database table names, that is not supported on all databases

Fixed

• Trying to write a filename with a unsupported filename will now generate warning instead of error

Changed

• Highlight: WP CLI command to run migrations via cron or other external trigger (see submenu "Schedule" on migration in overview screen)
• Highlight: Major improvement to the data transport - All data will now be compressed and encrypted, regardless of using HTTPS or not

1.2.0 14 improved3 fixed3 changed

Improved

• Improve selective migration of files - Much faster and safer
• Support for PHP's open_basedir configurations
• Search/replaces on domain and web root are now locked, but still possible to add custom
• Implemented retries for all requests if one of the servers has temporary problems
• Improvement of security by using sha256 instead of sha1 for token
• Support for migration of database tables close to the 65 char limit
• No more data store in temp file on disk - Moved to database table instead
• Makes finalize more likely to complete with success
• Less aggressive "Buy PRO" ad. Moved to the side instead of being a bit too annoying
• General UI improvements, with better text and icons
• Support for database tables with uppercase letters
• Support for MariaDB 5.5
• Support for sites using upload_path and upload_url_path
• Removed option to preserve WP Synchro data - It is now forced to prevent troubles

Fixed

• Pull/push filtering on overview now works again
• Handle properly when max_post_size is set to 0
• Fixed database search/replace in serialization with special case

Changed

• Highlight: Major rewrite of files migration and many improvements in database migration
• Highlight: Implementing preconfigured migration setups, to make it simple for those just wanting to move everything
• Highlight: Database backup before database migration (PRO version only)

1.1.0 2 improved2 fixed2 changed

Improved

• Make frontend JS more tolerant of intermittent host timeouts
• Support for self-signed certificates

Fixed

• Fixed a lot of smaller bugs on database sync
• Fixed bugs when syncing files with special characters, such as the Danish æøå

Changed

• Highlight: Massive performance improvement for all migrations - Now using MU plugin to skip plugins/themes loading for WP Synchro requests
• Highlight: Self healthcheck that will self-diagnose known troubles on each site