Firmware: Bug fixes?

My Cloud OS 3 Personal & Network Attached Storage My Cloud EX2
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So. . .for the EX2 Ultra; new firmware has been released: 2.41.116

The release notes for both this version and the prior version say “bug fixes”.

Anyone have any idea what bugs are being fixed? I am a bit concerned that there is something here that may eventually force a move over to OS/5. . .which I do not want to do on my current OS/3 NAS.