Not that I know of.
If you have model "X" it might be worth your while to notate down the new updates as they come.
I usually don't have much use for older versions so I hardly make an effort.
Here's the Page for you:
Code:
Model: Page (English)
Finger: Onyx/Page/Page:11/2025-04-02_04-14_v4.0-rel_6d15a71551/49342:user/release-keys
Link: http://firmware-us.boox.com/718b4a1554ab4c700dfe3c4c9935b8fd/update.upx
Size: 1,805,519,360
MD5: 718b4a1554ab4c700dfe3c4c9935b8fd
Model: Page (English)
Finger: Onyx/Page/Page:11/2025-05-06_18-51_4.0.2_78306bd4c1/49567:user/release-keys
Link: http://firmware-us.boox.com/fb52320d69ca7d1541f6e1c5f4960a94/update.upx
Size: 34,831,386
MD5: fb52320d69ca7d1541f6e1c5f4960a94