npm install electron@v26.2.0

yarn add electron@v26.2.0

Release Notes

Features

Added support for several more extensions manifest keys including host_permissions, author, and short_name. #39673 (Also in 27)
Added the ability to send HTTP headers with webContents.downloadURL(). #39562 (Also in 25, 27)

Fixed an issue where child windows opened when the parent window is already fullscreen did not respect the child windows' fullscreenability and resizability settings. #39641 (Also in 24, 25, 27)
Fixed an issue where pressing the escape key did not properly trigger PDF presentation mode exit. #39705 (Also in 27)
Fixed an issue where the Node.js assert module did not work in the renderer process. #39624 (Also in 24, 25, 27)
Fixed problem with promise resolved to early when browser initiated in-page navigation. #39679 (Also in 25, 27)