| `CVR` | N | Y | N | [MSNP2](versions/msnp2.md) | [MSNP8](versions/msnp8.md) (parameter 8) |
| `CVQ` | N | Y | N | [CVR0](versions/cvr0.md) | [MSNP8](versions/msnp8.md) (parameter 8) |
| `USR` | N | Y | N | [MSNP2](versions/msnp2.md) | [MSNP3](versions/msnp3.md) (removed CTP), [MSNP6](versions/msnp7.md) (added verified bit to OK), [MSNP8](versions/msnp8.md) (TWN auth, removed MD5 auth, added unknown bit to OK), [MSNP10](versions/msnp10.md) (removed current display name in favor of PRP MFN), [MSNP15](versions/msnp15.md) (SSO auth) |
| [`XFR`](commands/xfr.md) | N | Y | Y?| [MSNP2](versions/msnp2.md) | [MSNP3](versions/msnp3.md) (parameter 3), [MSNP7](versions/msnp7.md) (parameter 4) |
| [`OUT`](commands/out.md) | N | Y | Y | [MSNP2](versions/msnp2.md) | [MSNP10](versions/msnp10.md) (MIG and TOU disconnect reasons added), [MSNP11](versions/msnp11.md) (RCT reason added with parameter for amount of minutes until attempted reconnect.) |
| [`FND`](commands/fnd.md) | N | Y | N | [MSNP2](versions/msnp2.md) | [MSNP5](versions/msnp5.md) (uses SDC instead of SND), July 2003 (not really any specific MSNP update, just soft-removed with a 502.) |
| [`BLP`](commands/blp.md) | N | Y | Y\*| [MSNP2](versions/msnp2.md) | [MSNP10](versions/msnp10.md) (Removed List Version if `ABCHMigrated: 1`), [MSNP13](versions/msnp13.md) (removed: automatic disconnect) |
| [`GTC`](commands/gtc.md) | N | Y | Y\* | [MSNP2](versions/msnp2.md) | [MSNP10](versions/msnp10.md) (Removed List Version if `ABCHMigrated: 1`), [MSNP13](versions/msnp13.md) (removed: automatic disconnect) |
| [`CHG`](commands/chg.md) | N | Y | Y | [MSNP2](versions/msnp2.md) | [MSNP8](versions/msnp8.md) (Added Client Capability flags support as parameter 2), [MSNP9](versions/msnp9.md) (MSNObject support as parameter 3) |
| [`ACK`](commands/ack.md) | N | N | Y | [MSNP2](versions/msnp2.md) | [MSNP9](versions/msnp9.md) (Now can happen as a response to [MSG](commands/msg.md) D.) |
| [`NAK`](commands/nak.md) | N | N | Y | [MSNP2](versions/msnp2.md) | |
| [`BYE`](commands/bye.md) | N | N | Y | [MSNP2](versions/msnp2.md) | |
| [`ANS`](commands/iro.md) | N | Y | Y | [MSNP2](versions/msnp2.md) | [MSNP16](versions/msnp16.md) (Added MPOP Machine ID appended to the local user's handle parameter, delimited by a semi-colon) |
| [`MSG`](commands/msg.md) | Y | Y | Y | [MSNP2](versions/msnp2.md) | [MSNP9](versions/msnp9.md) (Added Acknoledgement Type D) |
| [`IRO`](commands/iro.md) | N | N | Y | [MSNP2](versions/msnp2.md) | [MSNP12](versions/msnp12.md) (Added Client Capability flags support as parameter 5) |
| [`JOI`](commands/joi.md) | N | N | Y | [MSNP2](versions/msnp2.md) | [MSNP12](versions/msnp12.md) (Added Client Capability flags support as parameter 3) |
| [`CAL`](commands/cal.md) | N | Y | N | [MSNP2](versions/msnp2.md) | |