3.12.1:
- Do not report a host as dead when pinging fails with an I/O error
- Enable MAC and MAC Vendor fetchers by default for new users
- Copy MAC address from the results menu when the MAC fetcher is active
- Fix inflated ping times when ARP is used in addition to the selected pinger
- Default to 100 threads again, as virtual threads get pinned to number of CPU cores, especially on Windows
- Windows:
- force to uninstall a previous version before installing a new one with different admin rights
- fix IPv6 pinging (address family, reply layout, and scope ID)
- security: prevent command injection through Windows terminal openers
- use the actual version in installer metadata
- show fatal startup errors instead of failing silently
- handle ICMP API failures and size IPv6 reply buffers correctly
- fix a crash when moving the window between monitors with different scaling