Some companies do update their data sheets. Maybe most of them do and only TI doesn't. If you just have to have a newer version, do an internet search for the part number and look for a pdf from a manufacturer that isn't TI.
In the last 2 weeks, in the tiny final project I’ve been working on, I encountered numerous datasheets from Analog Devices, Diodes, Inc, and others that are not updated to the current brand. All exactly the same situation: acquired brands. Linear Technology, Micrel, and a few others I’d never even heard of.
And this is for things recent enough that they’re at least fully-digital PDFs, so you’d think they have access to the source documents…
I’ve definitely run into scanned datasheets from other vendors than TI, though. I think TI has a ton of them simply because they’ve acquired so many semiconductor companies, including some of the oldest ones.
do an internet search for the part number and look for a pdf from a manufacturer that isn't TI.
https://www.renesas.com/us/en/document/dst/cd4020bms-cd4024bms-cd4040bms-datasheet
The same thing probably works at Mouser, Digi-ket, etc.
Beware that the specs might not be the same! I know this came up semi-recently on here with 1N400x diodes, where different manufacturers had different specs for them.