Dear XOTcl Community,

i am pleased to announce XOTcl 1.5.3. This is an unplanned bugfix release, which is necessary due to certain changes in Tcl 8.4.14, which can lead to memory corruption in certain applications when xotcl is used. In particular, installations of OpenACS/DotLRN using Tcl 8.4.14 are required to upgrade to XOTcl 1.5.3.

Major changes relative to 1.5.2 are:

+ provided compatibility with Tcl 8.5

+ provided compatibility with Tcl 8.4.14

(fixed a nasty bug caused by a change in tcl 8.4.14, could led to a crash due to freed Tcl_Objs in OpenACS, allthough the xotcl regression test passed correctly)

+ reduced calling overhead of methods with nonpositional arguments by about 10 percent by avoiding shimmering.

+ fixed handling of "return -code break" from xotcl methods (thanks to Artur Trzewik for the bug report)

+ library/comm/Access.xotcl: fixed handling of chunked encoding

For more details about the changes, please consult the ChangeLog.

MORE INFO General and more detailed information about XOTcl and its components can be found at http://www.xotcl.org

Best regards,

Gustaf Neumann Uwe Zdun