Log Message:
Changes 8.6.3:
Correct Method Search Order
Regression [lreplace {} 1 1]
Crash regression in [oo::class destroy]
Regress [regsub -all {\(.*} a(b) {}]
[try {} on ok {} - on return {} {}] panic
[tcl::unsupported::getbytecode] disassember
[string cat] bytecode optimization
segfault in mangled bytecode
Hang in some [read]s of limited size
segfault in [array set] of traced array
MSVC14 compile support
[fcopy] treats [blocked] as error
regression in Tcl_Write() interface
fix [gets] on non-blocking channels
restore [open comX: r+]
Restore [lappend v] return value
Stop forcing EOF to be permanent