Get to grips with softfork proposals
SoftforkBIP
SchnorrBIP340
TaprootBIP341
TapscriptBIP342
MASTOutdated (BIP114)
The Great Consensus CleanupUnassigned
NoInput ClassNo BIP
Drivechain - Hashrate EscrowsBIP300
Drivechain - Blind Merged MiningBIP301

Thanks to Aaron Van Wirdum for his article on bitcoin magazine.