Joomla 4.0.1  and 3.10.1 are now available. These are bug-fix releases for the 4.0.x and 3.10.x series of Joomla which contain many bug fixes and improvements and a security release for the 4.0.0 release.What's in 4.0.1?Joomla 4.0.1 addresses several bugs, including:Security Fixes

• [20210801] High Severity - Moderate Impact - Insufficient access control for com_media deletion endpoint (affecting Joomla! 4.0.0)  More Information

Bug fixes and Improvements

• We have merged the fixes from 3.10 upto 4
• Disables LDAP plugin if no host provided ( #35233 )

Visit GitHub for the  full list of bug fixes What's in 3.10.1?Joomla 3.10.1 addresses several bugs, including:Bug fixes and Improvements

• Make sure the Joomla Update is not pointing to Joomla 4 while it shows the Default Update Server ( #35214 )
• Remove unused fields so they do not cause javascript errors during pre-update check ( #35272 )
• Backport: Add folder permissions check for com_joomlaupdate ( #35271 )

Visit GitHub for the  full list of bug fixes .Upgrade noteWith 3.10.0 we have added a bug that will show a required checkbox when you update to 3.10.1, that checkbox should not show up at all for patch releases and does not have any impact for 3.10.0 to 3.10.1 updates, so please check this checkbox to proceed with the update.  More Details you can find in the documentation