I'm running Stretch and have just installed Tcl from repository. Synaptic reports the installed version is 8.6.6+dfsg-1+b1 . The current upstream version is 8.6.9 .
I don't understand what "+dfsg-1+b1" is telling me. Where is that numbering scheme described?My goal is to understand (from upstream docs) how what I have installed differs from the current upstream version.
TIA
