ASR 901 upgrade IOS without restarting?

[K-Grev]

Hi, just curious if anyone knows if an ASR has this feature. I haven't seen that it does so my hopes are low. We have many ASR's providing cellular service to area and would like to avoid a restart but I understand if its necessary.

Thanks

[balaji.bandi]

not that i am aware this model has yet, hotfix upgrade, it required to reload the device to take effect of new IOS image.

https://www.cisco.com/c/en/us/td/docs/wireless/asr_901/Configuration/Guide/b_asr901-scg/b_asr901-scg_chapter_01001.html