half way of a project, only to found out I have been using an outdated library.

Sounds painfully familiar. Except I knew I was using an outdated lib, cause them motherfuckers haven’t bothered to update it. Took them 3 fucking months to change half a dozen lines in their code that I fucking pointed out they need to change.

Wait until you’re about 90% done and then the fucking management goes ”oh, we actully don’t have a business case for this feature, so let’s shelve the project” .... whaduheq?! Thank you for wasting half a year of my time. Fuckers.