Can't (advanced) find your records after you start daylight savings?

Microsoft have just released a new hotfix to address some date/time based knowledgebase issues.

832869 After daylight-saving time starts, Advanced Find may not return records that were created before that date in Microsoft CRM and in Microsoft CRM Sales for Outlook
835307 The Created On Last 7 Days column in the Advanced Find dialog box returns all records instead of the records that were created during the last seven days in Microsoft CRM

The hotfix is available by contacting microsoft.