Mac OS High Sierra Compatiblity

Mark Berger's Avatar

Mark Berger

22 Aug, 2017 04:47 PM

Hi there,

I love GPG for Mac. Currently, I am running the newest Beta of Mac OS High Sierra, and unfortunately, GPG is not compatible. When will a compatible version come out?



  1. 1 Posted by Stefan Youngs on 22 Aug, 2017 05:21 PM

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    I just spotted this after raising a bug report for no Encrypt box appearing in Mail

    I'm running High Sierra too.

  2. Support Staff 2 Posted by Steve on 23 Aug, 2017 10:26 AM

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    Hi Mark and Stefan,

    the first beta of macOS 10.13 High Sierra has been released by Apple in early June. GPGMail will be disabled upon upgrade. We're already looking into the internal changes.

    This KB-article has details as to why GPGMail becomes disabled after major macOS updates.

    For any productive work and if you rely on using GPGMail, you should refrain from updating to the pre-release version of macOS. At this time we cannot say, when a first test version for macOS 10.13 High Sierra will be available.

    @Stefan: replied in your other discussion.

    All the best,

  3. 3 Posted by Stefan Youngs on 23 Aug, 2017 02:22 PM

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    I raised the bug report in the GPG Keychain app, but then deleted the key it referred to in error. Sorry about that

  4. Support Staff 4 Posted by Steve on 23 Aug, 2017 02:23 PM

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    No problem at all. We clarified the situation on 10.12 in the other discussion.

  5. 5 Posted by Wolfgang on 13 Sep, 2017 05:48 AM

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    Hello GPGTools team,

    as High Sierra is announced to be released in less than two weeks now, is there any idea of a timeline which components of GPGTools will work and which not? And as GPGMall will most probably not work: Any plans on when a first Beta could be available?

    Maybe some "official" statement would be helpful now.

  6. 6 Posted by Alessandro on 19 Sep, 2017 01:15 PM

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    I added C86CD990-4660-4E36-8CDA-7454DEB2E199 to SupportedPluginCompatibilityUUIDs:

    sudo defaults write /Library/Mail/Bundles/GPGMail.mailbundle/Contents/Info.plist SupportedPluginCompatibilityUUIDs -array-add "$(grep -A 1 "PluginCompatibilityUUID" /Applications/ | grep string | cut -f 2 -d ">" | cut -f 1 -d "<")"

    but still no luck. Any hint?

  7. 7 Posted by Gerd Naschenwen... on 21 Sep, 2017 09:09 AM

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    It is quite ridiculous that the GPGTools team has not released a SINGLE working High Sierra version between late May 2017 and now.

    I fully understand the it is beta, but EVERY OTHER software developer (Little Snitch, Bartender etc) has released working versions for the beta.

    It is literally 4 days until High Sierra will be released to the public with the GM version being available since last week and no update or even comment in sight.

    I would have no problem contributing payments or paying an annual license if the GPGTools team can provide more consistent support.

  8. 8 Posted by Alessandro Vozz... on 21 Sep, 2017 09:09 AM

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    Dear sender,

    I'm in Seattle until the September 25th; please for urgent matters text me at +31643197789



  9. 9 Posted by Mark Pifeng on 21 Sep, 2017 03:28 PM

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    I can only support Gerd. Come on guys, if you want this project to live you should think about the fact that even for macOS Sierra, there was NEVER a stable release of GPGtools - and that is now a deprecated OS. I would be very interested in where the problems are that it is so hard to release GPGtools closer to macOS releases.

    The only guys who can have an interest in that is the NSA who hate encrypted mail. No other way than to continue using Thunderbird with Enigmail. They at least work reliable.

  10. 10 Posted by Gerd Naschenwen... on 21 Sep, 2017 03:40 PM

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    I actually think that if the GPGTools team can not provide the time / support those great tools provide, they should open-source onto Github for transparency and greater community involvement.

    I am honestly not sure why this was not done and why there is no public code-repository or issue tracker.

    I am sure that all of us are more than happy to financially contribute to make this happen and support a dedicated development team (although I think by open-sourcing it, the community itself will make this happen without incurring huge costs).

  11. 11 Posted by peter on 21 Sep, 2017 10:35 PM

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    Let me just throw my endorsement in on this as well. The web site says, run the beta if you are running Sierra - it also says don't run the beta of you are "in production" - i.e. care about your data.

    It is now just three days to full release of High Sierra. That means that to run a safe version of GPGtools, I need to be running 10.11 rather than the current 10.12 or the almost release 10.13

    What is it that needs to be done to keep this product relevant and current.

  12. 12 Posted by Stephen on 22 Sep, 2017 12:56 PM

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    I've been running the nightly builds on 10.12 for a long time now, and with perfectly acceptable results (for my needs) and have been logging issues as I've found them (not many).

    The Mail applicaiton in 10.13 has been re-written and developing plugins for its undocumented API is a blackart. As GPTtools is free , I don't know why everyone's so pissy, I thiknk the guys are working hard on this.

    If I do decide to upgrade to 10.13 on my produciton laptop, then I can still encrypt wtih GPG via the Apple services menu - it's not pretty, but ot works.

  13. 13 Posted by peter on 22 Sep, 2017 09:39 PM

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    There is a difference between anecdotal "this works for me" and committed "we feel this is robust, have tested it, and are confident we can fix anything that goes wrong". As for logging issues as they have been found. Call me old fashioned, I learnt my Software Engineering craft in the early 90's in an Operating System Group.

    The approach in essence, was.

    Develop new release features, put them out to a Test base, fix all bugs until the recurrence became zero, and then ship.

    I get the unnerving feeling that GPGTools team, hasn't established that basic release management protocol. As Gerd pointed out, public issue tracking, and code repositories are a step towards this, and if nothing else, they make the processes of engineering the product more transparent, and as such open to a) input and b) acceptance as to their efficacy.

    As for the re-write of the Mail App. I may be stating the blatantly obvious, but Jon Callas, one of the founders of PGP, joined Apple (again) to work on Security and Encryption in May 2016 - if anyone can beat the drum on getting access to (or arguing the case for access to) API's or code-bases in order to advance this project, he would be a starting point.

  14. 14 Posted by Stephen on 22 Sep, 2017 10:04 PM

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    Anecdotal? Patronising much? I've tested every nightly release on Sierra for a good while now thank you. I don't have to furnish my credentials to you, but would simply say that this project is SUPER IMPORTANT for many of us, and if there's ANY opportunity to influence Apple insiders to make update transitions easier, then that would be fantastic and should absolutely be exploited as an avenue to progress.

    What I won't do however, is to rail on a team of great guys trying to deliver a free solution to its community. I'm pretty sure their efforts aren't paying off their mortgages.

  15. 15 Posted by prich on 22 Sep, 2017 10:19 PM

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    Cosigning on your response.

    On September 22, 2017 at 15:04:30, Stephen ([email blocked]<mailto:[email blocked]>) wrote:

  16. 16 Posted by Stephen Smith on 23 Sep, 2017 04:41 PM

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    I just upgraded to Sierra and discovered that GPG doesn't work. Is this being actively worked on? I really appreciate the work that you have done. Are there any other mail apps for Mac that it will work with?

  17. Support Staff 17 Posted by Luke Le on 25 Sep, 2017 04:06 PM

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    Hi all,

    we apologize for not responding sooner. We were very busy getting the next release of GPG Suite ready, which we have just released.
    GPG Suite 2017.1 finally includes the stable version of GPGMail for macOS Sierra and a first beta for macOS High Sierra. So if you install this update and plan to upgrade today, GPGMail will just continue working. For known issues, please see the release notes on

    All of GPG Suite has been open sourced under the GPL License on Github since 2010:
    On our "Open Source" page you will also find all relevant links to the specific repositories of each tool included in GPG Suite, as well as the links to our bug tracker.

    As some of you have mentioned, GPGMail is developed by reverse-engineering any relevant parts of Mail which are necessary to hook into to add our functionality, which also means that if we start with the first beta of a new OS, we might have to do a lot of the work over and over again. Since in contrast to apps that are writte for macOS, there's no API for Mail and it can (and will) change, whenever Apple decides to with no regard at all to plugin developers.

    We really hope you enjoy the new release.



  18. 18 Posted by Gerd Naschenwen... on 25 Sep, 2017 04:50 PM

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    Thanks Lukas,

    link to release notes does not work:

  19. Support Staff 19 Posted by Luke Le on 25 Sep, 2017 04:59 PM

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  20. Steve closed this discussion on 16 Feb, 2018 02:44 PM.

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