Block sizes

Been using Syncthing for a long time with large files in many folders.

Have no idea what block size means. Was skimming change log and saw that recently’ish bigger block sizes were set as default, and that this benefits large files.

If was using Syncthing prior to block size change were existing folder block sizes changed?

Large blocks will be used the next time a file scanned (due to a change), if it’s large enough to require it.