I currently use Spyder 3.2.8 with Anaconda/Miniconda. When I open the Spyder editor, a Spyder update window pops up and shows Spyder 3.3.0 is available. It also indicates that "please wait until new conda packages are available and use conda to perform the update".
I followed the direction using anaconda prompt to update. My computer shows the packages were already installed successfully. However, my Spyder Editor is still the version 3.2.8 I also used Anaconda Navigator to update by clicking on the "gear" but no luck. How can I update from Spyder 3.2.8 to 3.3.0? Thank you!!!!
The only thing which really did the trick is
conda install spyder=3.3.0
so in this case you have to explicitly provide the package version.
I have a clean anaconda 5.2.0 installation.
Update: after that i can "conda update spyder" and everything is consistent (for 3.3.1 and further versions)