BIP-68 defines transactions with a version of 2. All transactions before that were version 1 transactions. BIP-68 was activated together with BIP-112 and BIP-113 in the CSV-softfork early July 2016. It took until early 2017 for a significant number of transactions with version 2 to appear.

Version 3 transactions were introduced with BIP-431 in 2024.

Related Charts

BIP-69 compliant Transactions

Shows the percentage of transactions compliant with BIP-69 ordering of inputs and outputs.

Cumulative Transactions

Shows the cumulative number of transactions.

Explicit RBF signaling Transactions

Shows the percentage of transactions signaling explicit Replace-By-Fee.

Height-based Time Locks

Shows the percentage of transactions time locked to an absolute block height.