Software has become essential for research. To improve the Findability, Accessibility, Interoperability, and Reuse of research software, it is desirable to develop and apply a set of FAIR Guiding Principles for software. Application of the FAIR principles to software will continue to advance the aims of the open science movement. The FAIR for Research Software Working Group (FAIR4RS WG) aims to enable coordination of existing community-led discussions on how to define and apply FAIR principles to research software, and to achieve adoption of these principles. The FAIR4RS WG is jointly convened as an RDA Working Group, FORCE11 Working Group, and Research Software Alliance (ReSA) Taskforce, in recognition of the importance of this work to these communities. The FAIR4RS WG was launched July 2020 with initial activities in four sub-groups, and it was endorsed in September 2020 by the RDA after being previously approved by FORCE11 and ReSA. In November 2020, the FAIR4RS WG in collaboration with SORSE organized two sessions for different time zones (17 November 2020 07:00 – 10:00 UTC and 19 November 2020 16:00 –19:00 UTC). Here are the links to the workshop's videos: From November 17th: https://youtu.be/hP-pvHlSQI8 From November 19th: https://youtu.be/RzAg-1l2Fjc During the workshop, we had four presentations and activities: - a background presentation on software and where we are with FAIR and software - an interactive presentation of the FAIR principles applied to software (using Mentimeter) - the FAIR4RS WG presentation and progress updates on the four subgroups - a discussion about three topics (initially planned to be in three separate breakout rooms): Topic n°1: What does interoperability mean for software? Topic n°2: What does reusability mean for software? Topic n°3: How would you want to get credit for making your software FAIR? This workshop report contains the complete outputs from the workshop including: - the general presentation - workshop notes from the main room for both sessions (in the same file) - Mentimeter presentation and poll results (two separate files for each session) - chat room transcriptions (two separate files for each session) - six discussion files by topic and session: S1_BR1_Interoperability for topic n°1 on November 17th S1_BR2_reuse for topic n°2 on November 17th S1_BR3_credit for topic n°3 on November 17th S2_BR1_Interoperability for topic n°1 on November 19th S2_BR2_reuse for topic n°2 on November 19th S2_BR3_credit for topic n°3 on November 19th We would like to acknowledge all the participants in the SORSE2020 FAIR4RS workshop who contributed to the discussion and to the workshop outputs.