Apple today released Time Capsule and AirPort Base Station (802.11n) Firmware 7.4.1 which is available for all 802.11n-based AirPort Extreme and AirPort Express base stations, as well as for all Time Capsules.

Applicable products:

• AirPort Extreme Base Station/802.11n
• Time Capsule, AirPort Express with 802.11n
• Time Capsule (Early 2009), AirPort Extreme (Early 2009)
• Back to My Mac

What’s new:

• For AirPort Extreme (Early 2009) and Time Capsule (Early 2009) that ship with firmware 7.4, the firmware 7.4.1 update:
– Resolves an issue in which a client computer may be disconnected when waking from sleep
– Addresses an issue in which redirecting SMTP port services may disable IP-layer networking
– Improves the reliability of Back to My Mac-based disk sharing
– Includes recent AirPort security updates

• For AirPort Extreme with 802.11n (Fast Ethernet), AirPort Extreme with 802.11n (Gigabit Ethernet), AirPort Express with 802.11n, and original Time Capsule models, the firmware 7.4.1 update:
– Enables remote administration and remote access to compatible USB connected drives via Back to My Mac (except on AirPort Express)
– Improves reliability when backing up to a Time Capsule via Time Machine
– Includes recent AirPort security updates

Time Capsule and AirPort Base Station (802.11n) Firmware 7.4.1 is available via Software Update.

[Thanks to MacDailyNews Reader "Edward W." for the heads up.]