The most significant information in the report is an new allegation of CIA waterboarding by a former detainee named Mohammed Shoroeiya. He was not among the three individuals the CIA previously, publicly acknowledged were waterboarded.
The report begins:
When rebel forces overtook Tripoli in August 2011, prison doors were opened and office files exposed, revealing startling new information about Libyaâ€™s relations with other countries. One such revelation, documented in this report, is the degree of involvement of the United States government under the Bush administration in the arrest of opponents of the former Libyan Leader, Muammar Gaddafi, living abroad, the subsequent torture and other ill-treatment of many of them in US custody, and their forced transfer to back to Libya.The report also includes an appendix with 49 pages of the intelligence documents seized in Libya. Some have been previously released publicly, but others have not. The full appendix is available here.
New York Times coverage is here and Benjamin Wittes over at Lawfare admitting that he no longer cares about allegations of detainee mistreatment is here.