v1.3

• Update Makefile.
• Update dimensions in issifm.
• Added new tool to report quality flags.
• Update libraries.
• Merge branch 'fix_issifm'.
• Updates for compilation on Ubuntu 22.04.

v1.2

• Update nLTE code.
• Update Makefile.
• Added cppcheck.
• Update spec_ana.
• Revised code for spectral analysis.
• Update issifm.
• Update noise_ret code for large data sets.
• Additional output for spec2tab.
• Added tool to select AIRS granules for lon-lat box.

v1.1

• Revised map_ret for plotting of IASI data.
• Added code to estimate non-LTE index.
• Updates issifm for low-res UM output.
• Added code to read WRF data to issifm.
• Added netCDF output to issifm.
• Added SZA filter to map_pert.
• Replaced optimize_si tool by optimize_btd tool.
• Added data checks to issifm.
• Added option for vertical and slant paths to issifm.
• Added code for ISSI forward model.
• Added check for data gaps in map_pert.
• Update variance tool.
• Link current version of JURASSIC.
• Moved autocorr and statistics to other software package.
• Removed AIRS retrieval preprocessor.
• New version of extract tool.
• New tools to get differences of retrieval data.
• Added doxygen documentation.

v1.0

• Initial version.