Why does Git need branches?

#Main reasons to use branches

#1. Parallel development

Multiple developers can:

• work on different tasks at the same time;
• avoid interfering with each other;
• avoid breaking the main branch (main / master).

#2. Safe experiments

• new ideas and features are built in separate branches;
• failed changes can simply be deleted;
• the main version of the project stays stable.

#3. Convenient change management

• each task = a separate branch;
• easier code review and testing;
• easier to track which feature changed what.

#4. Release control

• you can have release, hotfix branches;
• fix bugs in production quickly;
• prepare the next release in parallel.

#Important point

Branches in Git:

• are lightweight and fast;
• do not copy files;
• are pointers to commits.

#Short answer for an interview

Branches allow parallel development, isolate changes, and let you safely merge them into the main code.