Can the Synology package 7.0 be used in older version of DSM?

[Vindorable]

I’m running on DSM 6.2.3-25426 Update 3.
I found the link below on the download homepage but it’s for DSM 7.0. Is it compatible with my DSM version?

Duplicacy Web Edition 1.6.3 releases

https://acrosync.com/duplicacy-web/duplicacy_web_installer_win64_1.6.3.exe https://acrosync.com/duplicacy-web/duplicacy_web_osx_arm64_1.6.3.dmg https://acrosync.com/duplicacy-web/duplicacy_web_osx_x64_1.6.3.dmg https://acrosync.com/duplicacy-web/duplicacy_web_linux_x64_1.6.3 https://acrosync.com/duplicacy-web/duplicacy_web_linux_arm64_1.6.3 https://acrosync.com/duplicacy-web/duplicacy_web_linux_arm_1.6.3 https://acrosync.com/duplicacy-web/duplicacy_web_freebsd_x64_1.6.3 QNAP packages: ht…

Edit: I tried to install but my Synology says I need to be running DSM 7 onwards.
The only version compatible with my version is Duplicacy v1.5.0 found here: Synology packages for testing - #22 by saspus
Is this safe to use? Because the title states “packages for testing”.

[gchen]

No, 1.6.3 packages were built with DSM 7.0 SDK and do not work on DSM 6. I would suggest running the web GUI executable directly on Synology. Here is a guide written by @saspus: Duplicacy Web on Synology Diskstation without Docker | Trinkets, Odds, and Ends