The free Pro beta was due to end on 19 September. It now runs until 1 December 2026.
The date is built into the app itself, so the extension arrives with the build: install 0.7.5 and the beta keeps working. On an older build Pro switches off on 19 September even though the beta has been extended.
Updating keeps everything — settings, dictionary, clipboard history, licence. The installer replaces the program and leaves your data where it is.