Dear folks, my internet search skill seems to have abandonned me today. So I turn to you for hints on where to find information. What I need is a way to ensure I can undo any openSUSE 11.2 security update in case it spoils something. In the last years now and then security updates rendered parts of our system unusable. Most of those problems stemmed from custom-made applications that relied on certain architecture which had changed between versions and no longer held true after the update. While of course the openSUSE team cannot be held responsible for things they do not even know about, it leaves me very wary of any updates. Thus my question about any mechanisms to make sure I can undo updates. Thanks in advance for any pointers, Susan Dittmar -- Susan Dittmar, CIO - CCD and CMOS devices EURECA Messtechnik GmbH for science, space and military Eupenerstr. 150 customized and standard parts 50933 Köln Germany - lenses and optical filters phone: +49 (0)221 / 43082 - 390 - thermoelectric devices fax: +49 (0)221 / 43082 - 394 email: S.Dittmar@eureca.de - consulting services Handelsreg. Eintrag / Register entry : HRB 28609 Amtsgericht Köln USt.-IdNr. / VAT number : DE 186 063 293 Steuernummer / tax number : 223 / 5805 / 2511 Geschäftsführung / Management : J. Beckers, K. Sengebusch Diese Mitteilung erfolgt vertraulich und nur zur Kenntnisnahme durch die hierfür vorgesehenen Personen. Sollten Sie die Mitteilung irrtümlich erhalten haben, ist jede Weitergabe, Kopie oder Nutzung des Inhalts unzulässig. Bitte benachrichtigen Sie in diesem Fall den Absender und löschen Sie diese Nachricht und alle Anhänge dazu unverzüglich. This message is confidential and intended only for the exclusive use by particular persons. If you have received it by mistake, any review, copying, use or dissemination in whole or in part is strictly prohibited. Please notify the sender and delete this message and all its attachments from your system. -- To unsubscribe, e-mail: opensuse-security+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security+help@opensuse.org