After upgrading the plugin, I tried adding a post using my custom post type containing custom fields. Any custom fields set up as text-areas wouldnt work - I couldnt place a cursor to type in them.
I was able to publish the post, but after clicking the Publish button I was shown a blank white screen instead of the reloaded posting page.
Looking at the published post, only the data in the first custom field was displayed - the others weren`t saved. I restored the database and plugin directory and went back to the previous version.