Bitcoin gets updated through a process known as a "Bitcoin protocol upgrade" or a "Bitcoin software update." The Bitcoin protocol is the set of rules that govern how the Bitcoin network functions, and the software that implements those rules is known as a Bitcoin client.
When a new update to the Bitcoin software is released, the nodes that make up the network can choose to adopt the update or continue running the old version. However, if a significant number of nodes do not upgrade, there is a risk of a "hard fork," where the network splits into two incompatible versions.
The process of updating Bitcoin software can involve changes to the Bitcoin protocol, bug fixes, security improvements, and new features. Bitcoin updates are usually proposed by the core developers of the software, but the broader community of users and developers can provide feedback and suggestions.
Once a new update is proposed, it goes through a review process to ensure that it is safe and compatible with existing software. If the update is approved, it is then released to the public, and node operators can choose to upgrade their software to the new version.
In summary, Bitcoin gets updated through a collaborative process involving developers, users, and node operators, with changes made to the software to improve the protocol's functionality, security, and features.
