In case you missed it in late November, the California Supreme Court upheld the attorney-client privilege in Costco Wholesale Corp. v. Superior Court (Randall), upholding the protection afforded confidential attorney-client communications and affirming the sanctity of the attorney-client relationship. The decision vacated a trial court ruling which ordered that a redacted attorney opinion letter to the client be produced to opposing counsel.

For a complete review of the decision you can see it here.