After upgrade to 2.2.1 it still shows 2.1.2

I upgraded with ssh from 2.1.2-full to 2.2.1-full by copying/overwriting all the files to the directory. I see a lot of changes, but after the upgrade it still shows the old Gallery version:

Gallery-Version = 2.1.2 Kern 1.1.0.2
PHP-Version = 5.1.2 apache
Webserver = Apache/1.3.37 (Unix) PHP/5.1.2 mod_auth_passthrough/1.8 mod_log_bytes/1.2 mod_bwlimited/1.4 FrontPage/5.0.2.2635.SR1.2 mod_ssl/2.8.28 OpenSSL/0.9.7a
Datenbank = mysql 5.0.27-standard, lock.system=database
Werkzeuge = ArchiveUpload, Exif, Getid3, Thumbnail, Gd, ImageMagick
Beschleunigung = none, none
Betriebssystem = Linux nyc2.hosttitan.com 2.6.8-022stab078.21-smp #1 SMP Fri Sep 8 23:00:15 MSD 2006 x86_64
Standard-Motiv = hybrid
Sprache = de_DE
Browser = Mozilla/5.0 (X11; U; Linux i686; de; rv:1.8.0.7) Gecko/20060830 Firefox/1.5.0.7 (Debian-1.5.dfsg+1.5.0.7-2)

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