However, if you are using RSACAT, OVERDRIVE or eREAD Illinois then you will be affected.
For both OVERDRIVE and eRead Illinois patrons will be blocked from logging in to the respective webpages. Things they have downloaded on their devices should be able to be read. But, the 2 to 3 hours our server is off-line they will not be able to checkout, return, or place holds on the materials in either of these two eBook services. Hopefully, the update will just affect Tuesday morning and by Tuesday afternoon, things will get back to normal.
RSACAT however will not work properly for the next few days.