user131604: With taproot, a number of longstanding BIPs were merged into the Bitcoin standard client/consensus protocol - BIP341, BIP340, and BIP342. However, the Bitcoin repository BIPS index is unclear on when a BIP has actually been 'adopted' and merged into the standard client.
Does anyone have suggestions on identifying which BIPs were implemented in bitcoin-core, and when?

user208: BIPs are just proposals. Whether any particular piece of software supports/adopts it is up to the developers of that software.
To find out which BIPs are supported by Bitcoin Core specifically, look at its  doc/bips.md file.

131604: <p>With taproot, a number of longstanding BIPs were merged into the Bitcoin standard client/consensus protocol - BIP341, BIP340, and BIP342. However, the <a href="https://github.com/bitcoin/bips" rel="nofollow noreferrer">Bitcoin repository BIPS index</a> is unclear on when a BIP has actually been 'adopted' and merged into the standard client.</p>
<p>Does anyone have suggestions on identifying which BIPs were implemented in bitcoin-core, and when?</p>
 208: <p>BIPs are just proposals. Whether any particular piece of software supports/adopts it is up to the developers of that software.</p>
<p>To find out which BIPs are supported by Bitcoin Core specifically, look at its  <a href="https://github.com/bitcoin/bitcoin/blob/master/doc/bips.md" rel="noreferrer">doc/bips.md</a> file.</p>
