Is the php sockets extension experimental?

Hello, in the packet description of the php5-sockets in the SuSE Linux Enterprise Server 11 (SLES11) is the package php5-sockets in the additional SDK available, but marked as "experimental" (see below). Is this the true, where can I find this Information, or is this only a historical relic? Are there differences in this extension between PHP 5.2.x, 5.3.x and 5.4? Can I rely on this the extension for a productive environment? Thanks in advance, Meike ========================================================== ~ # zypper info php5-sockets Refreshing service 'SMT-http_delds01_entiretec_com'. Loading repository data... Reading installed packages... Information for package php5-sockets: Repository: SLES11SP2-SDK Name: php5-sockets Version: 5.2.14-0.7.24.1 Arch: x86_64 Vendor: SUSE LINUX Products GmbH, Nuernberg, Germany Support Level: unknown Installed: No Status: not installed Installed Size: 45.0 KiB Summary: PHP5 Extension Module Description: A low-level interface to the socket communication functionsbased on the popular BSD sockets, providing the possibilityto act as a socket server as well as a client.This extension is experimental! ==========================================================