OS version: Win 8 32bit
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The primary BOINC package was recently reduced to 64-bit only. You can find the legacy 32-bit package here.
Both new version and legacy vesion of some other apps (Caesium, calibre, etc.) are listed on 64bit machine:
https://i.imgur.com/VhAvymh.png
But things are really strange on 32bit machine:
https://i.imgur.com/elOlQbX.png
For BOINC there is only 64bit version
For Caesium there are both 64bit and 32bit vesion
For calibre there is only 32bit vesion
I have no idea what is happening here.
For 64-bit that is expected. But John will have to have a look into the 32-bit app list issues.
I expect the intended behaviour is what you see for Calibre, where only the 32-bit package is shown.
I'd accidentally set BOINC to standard and BOINC Legacy 32-bit to 64-bit only. It's been fixed.
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