Nokia Mobile updated the official “open source” page where they list kernel source codes of released Nokia devices. For regular customers this isn’t of any importance, but Nokia Mobile is obligated to share the modifications they made in open source code provided under the LGPL, GPL and other licenses.
The site was updated on 15th May when the source code for Nokia 9 PureView was provided. Nokia phones still missing from the list are Nokia 3.2, Nokia 4.2 and Nokia 3.1 Plus, as well as the China/Taiwan exclusive Nokia X71. As a feature phone running KaiOS, that uses open source code, the 8110 should be included as well.