Tcl/Tk 8.1.1 Release Announcement
May 26, 1999

We are pleased to announce the 8.1.1 releases of the Tcl scripting language and 
the Tk toolkit. This is primarily a bugfix release but a few new features have
also been added. More details can be found below.

Where to get the new releases:
------------------------------

Tcl 8.1.1 and Tk 8.1.1 are freely available in open source from the
Scriptics Web site at
	http://www.scriptics.com/software/8.1.html
This Web page also contains additional information about the releases,
including new features and notes about installing and compiling the releases.

Tcl/Tk 8.1.1 is also included in the TclPro 1.3 Sneak Preview release
available at:
	http://www.scriptics.com/tclpro/1.3SP.html

For additional information:
---------------------------

Please visit the Scriptics Web site.
    http://www.scriptics.com
This site contains a variety of information about Tcl/Tk in general, the
core Tcl and Tk distributions, the TclPro tool suite, and much more.

Thank you for your contributions:
---------------------------------
As usual, this release includes contributions from the Tcl community.  We have
a page honoring these contributions at:
        http://www.scriptics.com/software/contributors.html

Summary of Changes since Tcl 8.1:
---------------------------------

The following were the main changes in Tcl/Tk 8.1.1. A complete list can be found in
the changes file at the root of the source tree. 

1. Applied Jeff Hobbs' string patch which includes the following changes:
   new subcommands: equal, repeat, map, is, replace 
    -length option to "string compare|equal"
    -nocase option to "string compare|equal|match"
    string and list indices can be an integer or end?-integer?.
    added optional first and last index args to string toupper, et al.
See the string.n manual entry for more details about the new string features.

2. Applied Jeff Hobb's patch to add Tcl_StringCaseMatch to support case 
insensitive glob style matching and Tcl_UniCharIs* character classification 
functions.

3. Added Tcl_UtfNcmp and Tcl_UtfNcasecmp to make Utf string comparision easier.

4. Replaced the per-interpreter regexp cache with a per-thread cache.  Changed 
the Regexp object to take advantage of this extra cache.  Added a reference 
count to the TclRegexp type so regexps can be shared by multiple objects.  
Removed the per-interp regexp cache from the interpreter.  Now regexps can be 
used with no need for an interpreter. This set of changes should provide 
significant speed improvements for many Tcl scripts.

5. Applied the patch to fix 100-year and 400-year boundaries in leap year code, 
from Isaac Hollander.

6. Fixed a crash caused by a failure to reset the result before evaluating the 
test expression in an uncompiled for statement.

7. Added call to TclWinInit from TclpInitPlatform when building a static 
library since DllMain will not be invoked.  This could break old code that 
explicitly called TclWinInit, but should be simpler in the long run. Be aware 
that it is a potential incompatibility.

8. Fixed a bug where the Tcl_ObjType was not being set in a duplicated Tcl_Obj.

9. Changed Tcl_ParseCommand to avoid modifying eval'ed strings that are already 
null terminated.



In addition the following changes were made to Tk for 8.1.1.

1. Fixed clipboard code so it handles Unicode data properly on Windows NT and 95. 

2. Add extern "C" block around entire header file for C++ compilers to fix 
linkage issues.  Submitted by Don Porter and Paul Duffin.