The Huawei P20 Pro and P20 join the Mate 10 Pro outside Huawei's security update schedule
A few months ago, Huawei removed the Mate 10 and Mate 10 Pro from its monthly security update schedule. It's been right about two years since the P20 and P20 Pro were released, and the company has now given the phones the exact same treatment as it did the older Kirin 970-powered flagships.
Having a look at Huawei's official update page, the P20 Pro and P20 are sorely missing on the list. The phones were present on the April page, but now absent after the bulletin was updated for May. It's also interesting that the flagship P20, P20 Pro, Mate 10, and Mate 10 Pro are all missing from both the monthly and quarterly lists, while the lower-tiered P20 Lite and Mate 10 Lite appear on the quarterly list.
The fact that the P20 and P20 Pro were delisted doesn't mean they've gotten to the end of their support lifespans, however, as the phones will still receive the Android 10 update. In fact, the update began rolling out outside China to the P20 Pro a short while ago. It will be the last major update the phone receives, however, with Huawei seemingly snubbing the phone in its EMUI 10.1 update roadmap.
That said, Huawei's long-term software support policy is a bit sketchy—outside China, at least—as there are a multitude of Mate 10 Pro owners who claim to not have received a single update in months. Samsung, on the other hand, still sent out updates to the four-year-old Galaxy S7 until a few months ago.