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This is the fourth SPT power spectrum analysis focused on CIB and secondary CMB anisotropies. Here, we improve upon the last release by R12 in two ways. First and most importantly, we use the full 2540deg$^2$ [SPT-SZ]{} survey, which covers three times (four times at 95GHz) more sky area than used by R12 with the concomitant reduction in power spectrum uncertainties. We also include twice as much data on 200deg$^2$ of the R12 region. These are the two SPT “deep" fields which were first observed in 2008, and reobserved to the same noise level at 150GHz in 2010 and 2011. Second, we improve the analysis by more optimally weighting the data in two-dimensional Fourier space which reduces the power spectrum uncertainties by approximately 15%.

The paper is organized as follows. The observations and power spectrum analysis are described in Section \[sec:dataanalysis\], and systematics checks are detailed in Section \[sec:jackknife\]. The resulting power spectra are presented in Section \[sec:bandpowers\]. The model to which the data are fit is presented in Section \[sec:model\]. An overview of the cosmological constraints is presented in Section \[sec:results\], with more detailed investigations of the implications for the tSZ, the kSZ, the tSZ-CIB correlation, and 