Just recently I had some discussions with the clients who were claiming that they keep IDE project files in version control system hence they avoid any changes to those files. For reference, those are Eclipse generated .project and .classpath. From my point of view it is a bad practice by all means, however I usually prefer to collect some information on the topic before I say it loudly. So I asked from my G+ and Twitter followers, "IDE project files in version control - Yes/No?". Surprisingly, I've got quite a number of responses, so I decided to summarize the information as a blog post.