The purpose of the 2025 interim update of the guidelines was to update our recommendations based on new evidence since the last update, including: (i) incorporating new evidence related to injectable therapy including frequency of viral load monitoring and use of long-acting cabotegravir/rilpivirine in non-virally suppressed people; (ii) removal of abacavir from first-line recommendations for most and a recommendation to switch away from abacavir where clinically appropriate; (iii) removal of the CD4 caveat for first-line dolutegravir/lamivudine use; (iv) updated recommendations for people with NRTI resistance. These changes, with the supporting evidence, are highlighted in green.