Tcl/Tk 8.6.2 发布

* TIP 429: New command [string cat].

• [lsearch -integer], [lsort -integer] operate on wide ints.
  • POTENTIAL INCOMPATIBILITY *

• [dict replace], [dict remove] return canonical dicts.
  • POTENTIAL INCOMPATIBILITY *

• Cygwin: [file attributes -readonly -archive -hidden -system].

• Win: support for extended filesystem paths.

• Improved ::env synchronization with environment.

• Ocaml trouble with Tk and tailcall splice.

• transchans converted blocked writes to errors.

• Accept [image create -format PNG] (upper case).

• [info class subclasses ::oo::object] includes ::oo::class .

• Fix: [chan configure -error] breaks [socket -async] connection.

• Better handle NUL in filenames.

• Fix: failures in nested ensemble bytecode compiler.

• Fixed crashes in...

  
  - [apply {{} {while 1 {a {*}[return -level 0 -code continue]}}}]
  - [apply {{} {namespace upvar a b [x]}}]
  - [coroutine X coroutine Y info frame]
  - multi-interp font teardown
  - oo chain deletion

• Plugged memory leaks in...

  
  - execution traced coroutine deletion
  - [close [zlib push ... -dictionary ...]]
  - AtForkChild()
  - managing oo instance lists

• Performance addressed in...

  
  - [lappend l $multiple $arg] compile: quadratic -> linear
  - binary [chan copy]: move bytes instead of copy
  - Improved bytecode: [catch], [foreach], [lmap], num. conversion

• Bytecode compiled: [concat], [linsert], [namespace origin], [next],

  
  [nextto], [string is], [string replace], [string tolower],
  [string totitle], [string toupper], [string trim], [string trimleft],
  [string trimright] [yieldto]

• New package releases:

  
  http 2.8.8: Accept upper case schemes in URLs
  tcltest 2.3.7: cleanup runs before output comparisons
  platform 1.0.13: Update macosx-* variant compatibilities
  TclOO 1.0.2
  itcl 4.0.1
  thread 2.7.1
  sqlite3 3.8.6
  tdbc* 1.0.1

-- ekd123