PerCp-Cy5.5 anti-CD161, PE anti-RORγt, PE anti–γδ TCR, biotinylated anti–γδ TCR, PerCp-Cy5.5 anti-CD45RA, and APC anti–αβ TCR antibodies were from eBioscience. A647 anti-PLZF, APC-Cy7 anti-CD4, PE-Cy7 anti-CD8, BV421 anti-CD3, BV421 anti-CD161, PE anti-STAT4 (pY693), PE anti–IL-6R, PE anti–IL-12Rβ1, PE anti–IL-21R, PE mouse IgG1 isotype control, PerCP-Cy5.5 anti-STAT3 (pY705), and FITC anti–Vδ2 TCR antibodies were from BD. FITC anti–Vα24 TCR and PE and biotinylated anti-Vβ11 antibodies were from Beckman Coulter. FITC anti–Vδ1 TCR was from Thermo Fisher Scientific. APC or APC-Cy7 anti-Vα7.2 and PE-Cy7 anti–αβ TCR antibodies were from BioLegend. FITC anti-CCR7 antibody was from R&D Systems. MR1–5-OP-RU tetramers have been described previously (Reantragoon et al., 2013 (link); Corbett et al., 2014 (link)).