the following changes have occurred in Cloudy: 80.09 continuum fluorescense excitation of H lines overestimated because line optical depth was evaluated at edge of zone, not center 80.08a added recombination production of [CI] 9850 80.08 major change in collisional ionization cooling for hydrogen 80.07 energy was not conserved for vastly thick neutral regions due to form of continuum pumping probability function. Changed to Hummer's ESA0K2. 80.06g fix minor problem with optimize luminosity command (residual not computed properly in some cases) 80.06f helium collisions were not updated at all times 80.06e punch lines didn't work with more than 1 punch 80.06d cooling due to collisional ionization of helium put back in, insignificant change in predicted intensities 80.06b c problems occurred when code went totally molecular (NO H-ionizing radiation). This was fixed by stopping when heavy element molecular fraction grows very large. 80.06a printed line optical depths 2x too large for sphere static; line intensities were not affected; globule command had very small error 80.06: much larger collision strengths for [NeV] The document HAZY is the file hazy.ps o=====> WATCH THIS SPACE!<=====o A new version, 84, will be available in mid-Feb of 1993. It includes the elements sodium and nickel. It has a vastly revised treatment of heavy element opacities, designed to make it possible to encorporate the results of the Opacity Project once consistent recombination coefficients are available (within the next two years). The code is more robust than ever, and includes many improvements in the atomic/molecular data base.