The Tcl/Tk 8.1b2 release features several significant contributions that came from the Tcl user community. In this message we acknowledge and thank those users who contributed to this release. Note that many of the patches applied to 8.0.5 were also applied to the 8.1b2 code base, and we are not repeating the names of the contributors of those patches here. Paul Duffin deserves special thanks for creating the initial version of the stubs mechanism and working with Scriptics to see that it made it into the release. Jan Nijtmans contributed code and ideas to the stub implementation and validated it in the context of his plus-patches. Jean-Claude Wippler also worked closely with Paul, Jan, and the Scriptics engineering team on the stubs design. This release also incorporates Syd Polk's Tcl_Obj version of the lsort -command implementation, which results in a big speedup for custom list sorts. We log all bug reports and patch submissions in our bug database. During each release cycle, we devote some engineering resources to review the submissions. While we may not apply a patch directly, they provide a valuable aid to our engineers as they fix problems. We encourage you to submit patches to fix your favorite (or least favorite!) bug via our form at http://www.scriptics.com/support/bugForm.html All postings to this form that include patches will be cataloged under the Tcl Resource Center at http://www.scriptics.com/resource/software/patches/