[TASK] FlexForms: Replace scripactulous with jQuery UI

[Packages/TYPO3.CMS.git] / INSTALL.md

diff --git a/INSTALL.md b/INSTALL.md
index 622dce9..248ea6b 100644 (file)
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -105,6 +105,7 @@ functionality:
   * 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
@@ -120,6 +121,14 @@ functionality:
 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,