diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 97ce9c1403..887fe93779 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,37 +1,59 @@
-## PLEASE READ: 
+# How to contribute efficiently
 
-### Reporting Bugs:
+**Please read the first section before reporting a bug!**
 
-If you are reporting a new issue, you will make our life much simpler (and the fix come much sooner):
+## Reporting bugs or proposing features
 
-#### Specify the Platform 
+The golden rule is to **always open *one* issue for *one* bug**. If you notice several bugs and want to report them, make sure to create one new issue for each of them.
+
+Everything refered to hereafter as "bug" also applies for feature requests.
+
+If you are reporting a new issue, you will make our life much simpler (and the fix come much sooner) by following those guidelines:
+
+#### Search first in the existing database
+
+Issues are often reported several times by various users. It's a good practice to **search first** in the issues database before reporting your issue. If you don't find a relevant match or if you are unsure, don't hesitate to **open a new issue**. The bugsquad will handle it from there if it's a duplicate.
+
+#### Specify the platform 
  
-Godot runs on a large variety of platforms and operating systems and devices. If you believe your issue is device/platform dependent, please specify:
-* Operating System
-* Device
-* GPU Model
+Godot runs on a large variety of platforms and operating systems and devices. If you believe your issue is device/platform dependent (for example if it is related to the rendering, crashes or compilation errors), please specify:
+* Operating system
+* Device (including architecture, e.g. x86, x86_64, arm, etc.)
+* GPU model (and driver in use if you know it)
 
-#### Specify Reproduction Steps
+#### Specify steps to reproduce
 
-Many bugs can't be reproduced unless specific steps are taken. Please **specify the exact steps** that must be taken to reproduce the condition.
+Many bugs can't be reproduced unless specific steps are taken. Please **specify the exact steps** that must be taken to reproduce the condition, and try to keep them as minimal as possible.
 
-#### Provide a Simple,  Example Project
+#### Provide a simple, example project
 
-Sometimes an unexpected behavior happens in your project. In such case understand that:
+Sometimes an unexpected behavior happens in your project. In such case, understand that:
 
 * What happens to you may not happen to other users.
-* We can't take the time a look at your project, learn it and then figure out why it's failing. 
+* We can't take the time to look at your project, understand how it is set up and then figure out why it's failing.
  
-To speed up our work, prepare for us **a simple project** that isolates and reproduces the issue. This is always the **the best way for us to fix it**.
+To speed up our work, please prepare for us **a simple project** that isolates and reproduces the issue. This is always the **the best way for us to fix it**. You can attach a zip file with the minimal project directly to the bug report, by drag and dropping the file in the GitHub edition field.
 
-### Contributing Pull Requests
+## Contributing pull requests
 
-If you are adding new engine funcitonality, please make sure that:
+If you want to add new engine functionalities, please make sure that:
 
 * This functionality is desired.
-* You talked to other developers on how to implement it best.
-* Even if it won't be merged, your PR is useful for future work on another developer.
+* You talked to other developers on how to implement it best (on either communication channel, and maybe in a GitHub issue first before making your PR).
+* Even if it does not get merged, your PR is useful for future work by another developer.
+
+Similar rules can be applied when contributing bug fixes - it's always best to discuss the implementation in the bug report first if you are not 100% about what would be the best fix.
+
+#### Be nice to the git history
+
+Try to make simple PRs with that handle one specific topic. Just like for reporting issues, it's better to open 3 different PRs that each address a different issue than one big PR with three commits.
+
+When updating your fork with upstream changes, please use ``git pull --rebase`` to avoid creating "merge commits". Those commits unnecessarily pollute the git history when coming from PRs.
+
+Also try to make commits that bring the engine from one stable state to another stable state, i.e. if your first commit has a bug that you fixed in the second commit, try to merge them together before making your pull request (see ``git rebase -i`` and relevant help about rebasing or ammending commits on the Internet).
+
+This git style guide has some good practices to have in mind: https://github.com/agis-/git-style-guide
 
 Thanks!
 
-The Godot Development Team
+The Godot development team