Highlights of Tcl 8.5
* Speed: 8.5 now runs 10% faster than 8.4 with bytecode
improvements, object caching and reduced memory usage.
* Bignums: Tcl now supports arbitrary-precision integers,
which improves math operations on large integers.
* Safer interps: Tcl's powerful safe interpreter mechanism
now has improved control of time and command limits in
slave interpreters.
* clock command: More robust implementation of command for
specifying time, with significant l10n and i18n
improvements.
* dict command: New data structure that allows access to
data by value rather than a variable name, which is
substantially faster.
* Additional improvements: Faster list search, new and
improved mathematics procedures, anonymous procedures, new
ways to package Tcl extensions, Tcl-level custom channel
types, file and line location information for each
command, and more.
from Stuart Cassoff (MAINTAINER)
ok steven@
