Any update please?

In Plesk's defense: cPanel is also still at 1.3.8. Nonetheless, I think Plesk should hurry with their update as RoundCube 1.4 released on November 9, 2019.

when is the "next update" ? its planed sience 8 month!

@webdiz

Thank you for sharing this information, would prefer to do so within Plesk configuration file but if not possible so be it.

@Erik Kraijenoord

You're right. There is no official documentation yet. But with a bit know how it is possible to install your own roundcube version, standalone. -> https://github.com/roundcube/roundcubemail/blob/master/INSTALL

We will be shortly launching a blog which shows some plesk hacks.

@webdiz There is no documentation available to change the version numbers, as @Redje said, it's only possible with "Plesk premium mail". From the releases it's available since November 2019 but Plesk doesn't upgrade the version for some reason and we have no idea why because they don't answer us.

@anonym This would make no sense, since roundcube is open source and easy to install without Plesk. We are using a custom roundcube installation with version 1.4 on our server.

A rumour says plesk is not giving estimate of what plesk release will be featuring roundcube 1.4 and when it will be out because they hope to sell a premium plugin.
With no official statements you are making these rumours be truthful...

Can plesk provide us with an update and/or answer for this issue? Seems like Redje is correct about the "Plesk premium mail"

Indeed, there are multiple updates past already. I see the Plesk premium email also the advantage of the calendar and the file share abilities. The round Cube 1.41(already) should be standard e-mail only, with Elastic of course ;)
Also I think it's about time. If almost a year ago it was 'almost' added in An update.

When?

They will not update because they want to sell you the "Plesk premium mail". Roundcube 1.4 = Plesk premium mail.

When will this be released? We are 2020 the topic is almost a year old

Not much has happened since May. Some new plesk updates have been released since then. :(

When o when? Maybe for christmas?

When will Roundcube 1.4.x be released in Plesk Opsidian?

Update to the latest roundcube version with responsive skin.

9th November 2019 - 1.4.0 released.
22th November 2019 - 1.4.1 released.

Update to the new stable version of Roundcube (1.4.0) and enable the new default theme (elastic)