ProtonMail v3.5 Release Notes

Remove Conversation View

We are happy to announce the next version of ProtonMail’s secure email service. ProtonMail 3.5 brings back a feature from ProtonMail 2.0 – Message Mode within the webmail inbox.

In order to make encrypted email easier to use, we want to ensure everyone can use their inbox how they find most convenient, while maintaining the encryption that makes ProtonMail the world’s easiest to use encrypted email service. In this release we are bringing back the option to turn off conversation mode, which has received over 700 votes from the ProtonMail user community.

ProtonMail does not show advertisements or abuse your privacy to make money. Paid accounts are our only source of funding. Please consider upgrading to a ProtonMail Plus account so that we can continue to operate the service and fund further development.


Message Mode

Message Mode - Turn Off Conversation Mode

Conversation Mode was introduced with version 3.0 of ProtonMail. This feature provides the option to group all the messages from a conversation in the same thread to allow easier readability of a conversation. Message Mode disables this grouping to allow each individual message to open independently of the rest of the conversation mode. You can easily toggle between the two modes by going to Settings –> Appearance in your account.

Version 3.5 Full Release Notes

New Features

  • Introduction of Message Mode (The Ability to turn off conversation mode)
  • Added toggle in settings to enable/disable password reset

Bug Fixes

  • Load embedded images for outside encrypted messages
  • Fixed and error stating: Message is not a draft
  • IE browser specific fixes
  • UI bug fixes and improvements
  • Expiring message time bug fixed
  • Hotkeys Bug Fixed
  • Fix button action when you upload an attachment
  • Focus draft when you open it from drafts
  • Improved user notifications when action is taken within the web app
  • Auto scroll to the selected message
  • Prevent drag and drop images within the signature when the composer is open

Known Issues

  • PGP key export/import functionality still missing in version 3.x, will be done for a future release.
  • Some mobile responsiveness issues remain

As always, you can report bugs using ProtonMail report bug feature, or send us a support request here:

About the Author


We are scientists, engineers, and developers drawn together by a shared vision of protecting civil liberties online. Ensuring online privacy and security are core values for the ProtonMail team, and we strive daily to protect your rights online.


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28 comments on “ProtonMail v3.5 Release Notes

      • Could I get a serious answer to this.

        I was curious seeing as the latter is it too on the roadmap, would ProtonMail consider the brillaint possibilty of collaborating with

        It too is a Swiss company based around privacy and the bad thing is, it’s not too popular and was curious whether ProtonMail could raise funds later on to either aquire the company with its employees or collaborate with them and have it integrated into the system such as “PM Confidesk” and just add to the functionality and security.

        One of the main reasons I’m suggesting this is because storage especially modern day online storage is either quite unsecure, unreliable or not as brilliantly functional as one would expect. I suppose seeing as something similar, if not the replication of such a system (Confidesk) will be due, wouldn’t it be best to avoid all the hassle of what ProtonMail did to get the email system started and rather immidiately begin adding to the functionality, security and its efficiency such as collaboration and business use. At the very least discussing it with them considering they have similar principals.

        • Versatility – it’s strong.
          A virtual disk, e-mail and desktop messenger in laptop.
          From a single supplier.
          Nothing more is required.

        • Versatility – it’s strong.
          A virtual disk, e-mail and desktop messenger in laptop.
          From a single supplier.
          Nothing more is required.

  • Are you about to allow for mobile apps staying signed in longer than 2 weeks? It just pisses me off when I don’t recieve push notifications just because I’ve forgot to relogin.

  • Could an up-to-date development road map please be published? Killer app for me is multi-user accounts from a custom domain (for business use). Currently using a system which is not good and trying to plan for the future… when can I look to move over to Proton Mail? I think this is an important feature for Proton Mail to offer as it will allow access to enterprise users with budget to allocate:)

    So far this feature is planned for the fall (which we’re in) but does not appear to be part of update 3.5? Any further info would be greatly appreciated!

  • Protonmail v 3 and more. are certainly a plus … for the majority of people equipped with recent, fast, computers or appliances. HOWEVER, on (slightly) outdated hardware it can be exceedingly SLOW – to the point of being all but unusable. PLEASE ! While advancing Prtononmail (v3) do NOT deprecate Protonmail v.2 ! Currently it warns it is planned to be deprecated sometime soon : do NOT do that, PLEASE !

    KEEP PROTONMAIL v.2 accessible and functional, even though it might lack some specific newer functions !

  • still there is no such contacts come closure to blackberry, can protonmail make such effort to make the contacts as the best contacts with the duplicate, merge and link facility with nice interface…i bet you will be the one to choose if deployed…Thanks SYED Executive Editor #thenewscompany

  • Speaking of conversation mode, I’ve wondered for months why the Android app does not have this functionality. Any ideas? Otherwise it’s a really useful app. Thanks.

  • Speaking of conversation mode, I’ve wondered for months why the Android app does not have this functionality. Any ideas? Otherwise it’s a really useful app. Thanks

    • It is tricky with multiple addresses and multi-user support that is coming soon. PGP keys are assigned per address and not per account, so there is a lot more to keep track of.

  • I would love to see the “Edit Contacts” section get an upgrade – even if we could just get a “Notes” box in addition to name/email fields. This for me is the final stage of dumping gmail…..

    • This is already built and in our feature release pipeline. We just need to deploy a few other features that it depends on before it will be released.