On Wed, Mar 8, 2017, at 09:59 AM, Jan Varga wrote: > On 07/03/17 23:43, Robert Strong wrote: > > Are there any problems experienced by clients that downgrade to an > > older version after their profile has been upgraded? > > > This major version change is downgrade-incompatible, so IndexedDB and > DOM cache won't work in an older version if their profile has been > upgraded. > IndexedDB is also used internally, so stuff that depends on it likely > won't work too. > There's bug 1246615 [2] where you can find a discussion related to this > issue.
It would probably be a good idea to backup the old files when upgrading, so that old version can at least pick the backup file to use. It is important especially given that we don't use a separate profile for Nightly and Beta (which I think we really should!), but we sometimes ask people to test them. It is very bad that we put users who want to help us in risk of destroying their daily profile. - Xidorn _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
