7506E交换机V5升到V7有风险吗

<FY_DC01_A07_1_S7506E>dis version

H3C Comware Platform Software

Comware Software, Version 5.20, Release 6710P03

Copyright (c) 2004-2017 Hangzhou H3C Tech. Co., Ltd. All rights reserved.

H3C S7506E uptime is 20 weeks, 5 days, 22 hours, 31 minutes

MPU(M) 0:

Uptime is 20 weeks,5 days,22 hours,31 minutes

H3C S7506E MPU(M) with 1 BCM1125H Processor

BOARD TYPE:         LSQ1SRP1CB

DRAM:               512M bytes

FLASH:              64M bytes

NVRAM:              512K bytes

PCB 1 Version:      VER.B

PCB 2 Version:      VER.B

Bootrom Version:    500

CPLD 1 Version:     006

CPLD 2 Version:     006

Release Version:    H3C S7506E-6710P03

Patch Version  :    None

这个版本的升级软件 到V7最新版本，可以吗，原来的主控会支持，正常工作吗