This updates fixes a few recent issues with browser extensions, specifically Grammarly and various Adblockers, adds new Column insert options, merging of table cells when pasting table content, and includes a few other fixes and enhancments.
Grammarly extension conflict
Users have reported Chrome and Edge browsers crashing when attempting to access the right-click Context Menu in the editor. After some investigation the Grammarly browser extension was discovered as the cause and eventually the (bizarre) reason for the crash was found and fixed.
Adblocker update hides editor window
Over the weekend a number of users reported that the editor content window was no longer visible. This was found to be caused by an update to various Adblocker browser extensions, which has now been fixed.
New Column Insert options
The Add Column button now includes a drop-down menu with 2 new options: Add Column Before - which insert a new column before the current one - and Add Column After - which inserts a new column after the current one.

Merge Table cells on Pasting a Table
Pasting a table into an existing table will add the new table cells to the existing table. Existing cells will be replaced with the new cells starting from the cell in which the new content is pasted.

A changelog for this release is available to view here
Thank you to everyone who submitted bug reports and tested development versions. If you find any more issues please submit a ticket in the forum or on github.
Download and Installation
JCE Pro is available for download with a JCE Pro Subscription.
If you already have a subscription, please make sure you set your key before updating
Instructions for installing and updating JCE for each Joomla version are available here