Where can I find previous versions of Portable Thunderbird, for instance version 17.0.7? Sorry if this is answered elsewhere - I did do a search.
On the main Thunderbird Portable page, https://portableapps.com/apps/internet/thunderbird_portable, the "Other versions" link takes me to a page that does not seem to have a lot of versions including 17.0.7.
Everything prior to 17.0.8 is insecure and should not be used in a production/live environment. That said, you can find outdated versions here:
https://sourceforge.net/projects/portableapps/files/Mozilla%20Thunderbir...
Sometimes, the impossible can become possible, if you're awesome!
On the Thunderbird Portable Support page, https://portableapps.com/support/thunderbird_portable, there is a "Version History" section that seems incomplete. Currently it says:
"Version History
1.5.0.10 - March 5, 2007
Thunderbird updated to 1.5.0.10
Slight name change to Mozilla Thunderbird, Portable Edition"
Is there something more complete than that? Perhaps a changelog showing changes from version to version?
We don't maintain version histories anymore. Updates come too often. As with browsers, everyone should be using the latest version only.
Sometimes, the impossible can become possible, if you're awesome!