I think they might have improved it?.. I seem to recall using the IDE update feature the last few times and everything “seems” to be working… but then I don’t use any ESP, NeoPixel and TinyGSM stuff
That said…
If you really want to be sure of no “old” file corruption, first delete the Blynk folder in the \Arduino\libraries
side.
Then just open the Blynk_Release_v0.4.8.zip
file and copy all the folders in it’s library folder directly into Arduinos library folder. Then do the same thing with the Tools folder.