I've noticed that many people still confuse Native SegWit and Taproot, even though both updates have radically changed Bitcoin's capabilities. Let's understand what they are and why this is important.

Bitcoin has been evolving for a long time. After implementing SegWit in 2017, the network gained the ability to process more transactions by optimizing data weight. But Native SegWit went even further — it further reduced block sizes and increased throughput. Native SegWit addresses start with 'bc1', which immediately indicates that this is a more advanced version. The main advantage is that fees dropped, transactions became faster, and scalability improved.

Then in 2021, Taproot arrived — a completely different level. It was a major upgrade that developers had been preparing for years. Gregory Maxwell proposed the idea in 2018, then Peter Wuille refined it in 2019. In November 2021, when 90% of miners supported the upgrade, Taproot officially activated on block 709632.

Taproot operates on entirely different principles. Instead of simply reducing data size, it aggregates signatures — combining several into one. This enabled the implementation of Schnorr signatures, which are much more powerful than the old ECDSA algorithm. Additionally, Taproot introduced MAST (Merkleized Abstract Syntax Trees), allowing only the results of executed operations to be stored, rather than the entire tree.

What are the main differences? Native SegWit is optimized for regular transactions — it makes them cheaper and faster. Ideal for everyday use. Taproot, on the other hand, is geared toward complex operations: smart contracts, multi-signatures, atomic swaps. Yes, fees there can be slightly higher due to larger data volume, but the functionality is incomparable.

There’s also a difference in privacy. Native SegWit doesn’t help much in this regard — it just optimizes without hiding details. Taproot, however, masks transaction types and details, making them indistinguishable. This is a significant privacy enhancement.

In short: Native SegWit is about efficiency and cost savings, Taproot is about functionality and privacy. Both are essential for Bitcoin, just for different purposes. It’s fascinating to see how the network develops and adapts to growing needs.