Official 1.0b Patch

Do I need it for the Steam version?

Here are the patch notes for those interested (Credit goes to KOTORFiles).

* Added voice lines for Opo Chano when the PC states they can repair the protocol droid themselves on Telos (dark side)
* Added support for the Intel i915 chipset 
* Corrects a crash issue at the beginning of the dialogue after entering the Harbringer
* Corrects a crash issue when transitioning between B-4D4 to the main character after Czerka Mainframe quest on Telos (light side)
* Corrects an art issue with NPCs that appear in the mine foreman's log on Peragus
* Corrects a geometry issue inside the Jekk Jekk Tarr bar on Nar Shaddaa
* Corrects an issue with ATI Radeon cards being incorrectly reported in the swinfo.txt
* Corrects an issue with Atton missing from force cage in the Telos Academy
* Corrects swoop race forfeiting issue. Players can now win races after forfeiting a race.
* Corrects an issue with the swoop bike getting stuck in air in the swoop race mini-game
* Corrects stuck issue when reboarding Ebon Hawk on Nar Shaddaa
* Corrects a text/voice mismatch in Kreia's dialogue on Malachor
* Corrects a scripting issue with Batano quest on Telos (light side)
* Corrects a scripting issue with Devaronian conversation on Telos
* Updates a journal entry for "A Hidden Power" quest on Korriban
* Updates a journal entry for the "Fuel Sabotage" bonus mission on Telos
* Master Vash's corpse will now yield a lightsaber if you have a lightsaber when you kill him on Korriban (dark side)
* Khoonda Gun Turrets will no longer appear if you destroy them on Dantooine (dark side)
* Reduced the repetition of party members' voice lines when opening doors and containers

I thought that the Patch 1.0b was universal for all language versions but it's not. Searching the correct version of the Patch for my KotOR 2, 4 CD's spanish version, I'm pretty sure that the file of this page is the US version only.

It matches the size of other files from other pages tagged with "US version" and the name matches the same update description (from 200424 to 210427). Besides, this file differes the size and the update description of the "UK version" file from https://support.starwars.com/hc/en-us/articles/360000716323-Where-do-I-find-the-latest-patch-for-Knights-of-the-Old-Republic-II-The-Sith-Lords-#h_1589466961211525014675604 (from 201420 to 211427).

Anyway, I think that neither one nor the other works with non english versions of KotOR 2 (at least with the sp version, of course with the Patch 1.0a installed)