* curl
* mbstring
* FreeType (usually included within the PHP distribution)
+ * bcmath or gmp (needed if you'd like to use the openid system extension)
* PHP access to /dev/urandom or /dev/random on Unix-like platforms for
increased security. Make sure to add "/dev/random:/dev/urandom" to
Installation
------------
+### Important note for upgrades from TYPO3 CMS versions **below 4.5 LTS**
+
+It is not possible to upgrade any version below 4.5 LTS to 6.2 LTS directly,
+since some upgrade wizards are not available anymore on 6.2 LTS.
+
+It is highly recommended to upgrade to 4.5 LTS first and continue with
+a second upgrade to 6.2 LTS.
+
### If SSH and symlinks are possible
If you have SSH access to your webserver and are able to create symlinks,