i am alasdair keane with this week's tech news.a new black and white logo replaces twitter's famous blue bird on the desktop versions of the site, with twitter signage on their san francisco headquarters also partially removed. it is not a cute animal. it is a differentl colour scheme. it is really going to - have a totally different appeal, and i think— they are throwing the baby out with the bathwater here. spotify is raising the prices of its premium plans for the first time in a 12 years. in the uk individual premium plans on the music streaming service will rise by £1 to £10.99 with the dual and family plan cost also rising. spotify says the increase will help it deliver more value for fans and artists. video sharing platform tiktok has announced it will now let uses creates text—based content. users will be able to upload text—only posts which they can customise with sound, stickers and locations, up to a limit of 1000 words. and university of sheffield researchers have developed a robot which can venture into high—risk envir