Some menu items seem to have reverted back to English. See the attached screenshot. I’m using Windows 8 64-bit.
Many of the translations of Audacity are incomplete. Audacity is a free, open source project and the development, support and translations are done by volunteer enthusiasts from around the world.Volunteers to help translate this Manual are very welcome. More information here: http://manual.audacityteam.org/man/Help:Translating
Translation is an ongoing job - as new features and improvements to Audacity are made, these features may need translating.
If there isn’t any current Swedish translator I can help, but I don’t want to do someone else’s job if someone is currently working on it.
Terrific 
I don’t know if there is currently anyone doing the Swedish Translation, but I believe that the system used for translation can cope with multiple people working on the same language. If you write to the “feedback” e-mail address near the top of this page, someone (probably Gale) will get back to you and help get you set up. Put something like “Translation Volunteer” as the subject line and introduce yourself - I’m sure they will be delighted to have a new member to the translation team.
Steve
Alright, I’ll do that later.