search filter version

Trimmed Idea: Associate every content in the site (forums, comments, pages, books) to a version of Drupal.

I've started working with Drupal 6 a few months ago to build a city portal. As you can imagine, the project requires a lot of tools (modules) and involves a lot of doubts about Drupal capabilities or flexibility. Even after a good reading of Drupal Handbook, a lot of questions have popped up about the possibility or not to do something we need, without making our own version of Drupal and avoiding build whole modules without needing.