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- [regression in tzdata, %z instead of offset TZ-name](https://core.tcl-lang.org/tcl/tktview/2c237b)
- [Tcl will not start properly if there is an init.tcl file in the current dir](https://core.tcl-lang.org/tcl/tktview/43c94f)
- [clock scan "24:00", ISO-8601 compatibility](https://core.tcl-lang.org/tcl/tktview/aee9f2)
- [install registry and dde in $INSTALL_DIR\lib always](https://core.tcl-lang.org/tcl/tktview/364bd9)
- [cannot build .chm help file (Windows)](https://core.tcl-lang.org/tcl/tktview/bb110c)
- [TIP 701 - Tcl_FSTildeExpand C API](https://core.tcl-lang.org/tips/doc/trunk/tip/701.md)
- [buffer overwrite for non-BMP characters in utf-16](https://core.tcl-lang.org/tcl/tktview/66da4d)
- [Temporary folder with file "tcl9registry13.dll" remains after "exit"](https://core.tcl-lang.org/tcl/tktview/6ce3c0)
Release Tcl 9.0.0 arises from the check-in with tag `core-9-0-0`.
Highlighted differences between Tcl 9.0 and Tcl 8.6 are summarized below,
with focus on changes important to programmers using the Tcl library and
writing Tcl scripts.
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- abstract and singleton classes
- configurable properties
- `method -export`, `method -unexport`
# Known bugs
- [changed behaviour wrt command names, namespaces and resolution](https://core.tcl-lang.org/tcl/tktview/f14b33)
- [windows dos device paths inconsistencies and missing functionality](https://core.tcl-lang.org/tcl/tktview/d8f121)
- [load library (dll) from zipfs-library causes a leak in temporary folder](https://core.tcl-lang.org/tcl/tktview/a8e4f7)
- [Temporary folder with file "tcl9registry13.dll" remains after "exit"](https://core.tcl-lang.org/tcl/tktview/6ce3c0)
- [Wrong handling of "24:00" for weekdays](https://core.tcl-lang.org/tcl/tktview/882da1)
- [lsearch -stride with -subindices and -inline -all gives unexpected result](https://core.tcl-lang.org/tcl/tktview/5a1aaa)
- [lsearch -sorted -inline -subindices incorrect result](https://core.tcl-lang.org/tcl/tktview/bc4ac0)
- ["No error" when load fails due to a missing secondary DLL](https://core.tcl-lang.org/tcl/tktview/bc4ac0)
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