I upgraded from v6.5.7 to version 6.7 and I have seen multiple instances where the final portion of text or HTML documents is duplicated (for example the closing "</html>" tag or a portion of it is repeated - where it does not appear in the source local document, but WinSCP adds this after a transfer occurs on the remote site causing the text duplication). This happens via the GUI and with both SFTP and FTPS (implicit SSSL). I downgraded to version 6.5.7 and I no longer see this text duplication when completing transfers in my testing. I just wanted to report this as I had not seen it mentioned previously. Thank you!