Four nonoverlapping errata sheets are known to me.
To track new developments, both the Annotated Reference Manual and Bjarne Stroustrup's book have an identical ``extra'' chapter that is updated a couple of times a year. Its most recent version and the most recent errata sheet are available from Software, Tool & Die's ftp server in directory AW/stroustrup2e.
Thanks to Bjarne Stroustrup (bs@research.att.com) for errata and pointer.
Markup, etc. by jutta@pobox.com, corrections and comments welcome.