Updates 1.6.9 and 1.5.9 released

These are immediate service releases to fix regressions introduced in the most recent security updates. Both releases contain two following fixes:

• Fix regression where printing/scaling/rotating image attachments was broken (#9571)
• Fix regression where HTML messages were displayed unstyled (#9586)

These releases are considered stable and we recommend to update all productive installations of Roundcube with these. Download it from roundcube.net.

Please do backup your data before updating!