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Roundcube 1.5.0 released


We proudly announce the final release of the next major version 1.5 of Roundcube webmail. With this milestone we introduce new features and full PHP 8.0 support. The most noteworthy additions are:

* Dark mode for Elastic skin
* OAuth2/XOauth support (with plugin hooks)
* Collected recipients and trusted senders
* Moving recipients between inputs with drag & drop
* Full unicode support with MySQL database
* Support of IMAP LITERAL- extension RFC 7888
* Support of RFC 2231 encoded names
* Cache refactoring
See the full changelog in the release notes on the Github download page.

We also disabled the spell checking feature using by default because some privacy concerns were raised. It now needs to be enabled explicitly by setting the enable_spellcheck config option to true.

In case you’re running Roundcube directly from source or if you’re not using the complete package, you need to install 3rd party javascript modules using the bin/ script. In the 1.5.x series the toolchain required to build a functional package has changed a bit:

* bin/ replaced google-closure-compiler with UglifyJS
* bin/ replaced yuicompressor with csso
* Elastic theme: require lessc >= 2.5.2 (and add support for v4) with less-plugin-clean-css
This release is considered stable and we encourage you to update your productive installations after carefully testing the upgrade scenario. Download it from

With the release of Roundcube 1.5.0, the previous stable release branches 1.4.x and 1.3.x will change into LTS low maintenance mode which means they will only receive important security updates but no longer any regular improvement updates. The 1.2.x series is no longer supported and maintained.

Get it Now:

My server updated automatically to this new release and since 19/10/2021 Rouncube don't show any Inbox mail with the message "Internal Server Error".

I tried and searched for possible solutions, but found nothing to solve.

Is a Centos 7 with PHP 7.4 and Mysql server.

Can you suggest an action plan?

What is in the Roundcube error log?

I looked in /var/log and did not found a roundcube.log

Can you tell me where is the Roundcube log files in Centos?

<RC root>/logs


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