Thanks for your question — we understand how important upgrade clarity is for users planning ahead.
We remain committed to maintaining and supporting older models wherever possible. That said, firmware release priorities depend on multiple factors such as CPU performance, available memory, user demand, and development resources.
For the A1300, the limitation is primarily hardware-related. The available system resources (especially flash and memory) are not sufficient to support the 4.9 firmware and its newer features in a stable and reliable way. In other words, it’s not just a matter of prioritization — the device simply doesn’t have enough headroom to run this firmware properly.
As a result, the A1300 will continue to stay on the 4.5.x branch, where we will still focus on stability and necessary maintenance updates.
We truly appreciate your understanding and continued support.