No need to upgrade, your WordPress database is up to date!

Online upgrade toWordpressWhen the latest version logs in to the background, a prompt appears:

• "No need to upgrade, your WordPress database is up to date" ▼

• Clicking Continue takes you to the home page, and happensunlimitedAn infinite loop, causing the site to fail to log in...

The solution is as follows:

1) Where is the problem?

Most users with this phenomenon have enabled object caching, or Memcached caching.

There is an object-cache.php file in the wp-content folder, this is what causes youThe main reason for not being able to log into the cache.

2) How to solve it?

Step 1:Delete or rename the object-cache.php file

• We just need to go into the wp-content folder and delete the object-cache.php file.
• Or change the suffix name, for example:object-cache.php.bak

Step 2:login background

Then log in to the background again, and there will be no infinite loop.

How to find and solve problems?

Such problems are usually caused byWordPress websiteCaused by the program's cache:

• Do you remember your WordPress program, did you install some caching plugins?
• Then go to FTP, change the cache plugin name directly, or delete all generated cache cache folders (like widget cache, object cache, WP cache,WP plugincache, etc.)

Attention points

• Most cache files are located in the plugins folder.
• Some plugin cache files are located in the wp-content directory, or somewhere else you didn't notice.
• Once the change is complete, you can log in as usualWordPress backendThe.