qt 6.9.0 for mac

version bump 8.8.9

update note about DTLS support

ifdef EOL for various OSes

version bump 8.6.5

swich to pointer for wakeonlan generation. also clear out the resend

version bump 8.5.x

Merge branch 'development' of github.com:dannagle/PacketSender into d…

…evelopment

use permalinks in release notes

use SN for code sign for mac